UNITED STATES

                SECURITIES AND EXCHANGE COMMISSION

                      Washington, D.C. 20549

                             FORM 11-K


(Mark One)

[ x ]     ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES
          EXCHANGE ACT OF 1934

          For the fiscal year ended December 31, 2000

                                OR

[   ]     TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES
          EXCHANGE ACT OF 1934

          For the transition period from ________ to _______

Commission file numbers:  33-25419 and 33-64058

A.   Full title of the plan and the address of the plan, if different
     from that of the issuer named below:

                     Airgas, Inc. 401(k) Plan

B.   Name of the issuer of the securities held pursuant to the plan and
     the address of its principal executive office:

                           Airgas, Inc.
             259 North Radnor-Chester Road, Suite 100
                       Radnor, PA 19087-5283





                       REQUIRED INFORMATION

     (1)  Financial Statements:

     The following financial statements, including Independent
Auditors' Report thereon of Airgas, Inc. 401(k) Plan, are submitted
herewith:

     o    Statements of Net Assets Available for Benefits as of
          December 31, 2000 and 1999

     o    Statements of Changes in Net Assets Available for Benefits for
          the years ended December 31, 2000 and 1999

     o    Notes to Financial Statements

     o    Schedule 1 - Schedule of Assets Held for Investment Purposes

     The schedule for which provision is made in the applicable
accounting regulations of the Securities and Exchange Commission is
included in the aforementioned financial statements of the Airgas,
Inc. 401(k) Plan.

     (2)  Exhibits:

     23.1 Consent of KPMG LLP


                            SIGNATURES


     Pursuant to the requirements of the Securities Exchange Act of
1934, the Plan Administrator has duly caused this report to be
signed on its behalf by the undersigned hereunto duly authorized.

                           AIRGAS, INC. 401(k) PLAN
                                (Name of Plan)


                         BY:/s/ 401(k) Plan Committee



                         BY:/s/ Roger F. Millay
                                Roger F. Millay
                                Senior Vice President - Finance and
                                Chief Financial Officer

                         BY:/s/ Todd R. Craun
                                Todd R. Craun
                                General Counsel and Secretary


DATED:  June 27, 2001



                     AIRGAS, INC. 401(k) PLAN

                     Financial Statements and
                      Supplementary Schedule

                    December 31, 2000 and 1999

            (With Independent Auditors' Report Thereon)


                     AIRGAS, INC. 401(k) PLAN


                         Table of Contents



                                                              Page

Independent Auditors' Report                                     1

Statements of Net Assets Available for Benefits,
 December 31, 2000 and 1999                                      2

Statements of Changes in Net Assets Available for Benefits,
 Years ended December 31, 2000 and 1999                          3

Notes to Financial Statements                                    4


Schedule:

1  -  Schedule of Assets Held for Investment Purposes,
 December 31, 2000                                              11

 1
                   Independent Auditors' Report


The Plan Administrator
Airgas, Inc. 401(k) Plan:


We have audited the accompanying statements of net assets available
for  benefits  of the Airgas, Inc. 401(k) Plan as of  December  31,
2000  and 1999, and the related statements of changes in net assets
available  for benefits for the years then ended.  These  financial
statements  are  the responsibility of the Plan's management.   Our
responsibility  is  to  express  an  opinion  on  these   financial
statements based on our audits.

We  conducted  our  audits  in accordance with  auditing  standards
generally  accepted  in  the  United  States  of  America.    Those
standards  require  that we plan and perform the  audit  to  obtain
reasonable  assurance  about whether the financial  statements  are
free  of material misstatement.  An audit includes examining, on  a
test basis, evidence supporting the amounts and disclosures in  the
financial  statements.   An  audit  also  includes  assessing   the
accounting  principles  used  and  significant  estimates  made  by
management,  as well as evaluating the overall financial  statement
presentation.   We  believe that our audits  provide  a  reasonable
basis for our opinion.

In  our opinion, the financial statements referred to above present
fairly,  in  all  material respects, the net assets  available  for
benefits  of the Airgas, Inc. 401(k) Plan at December 31, 2000  and
1999, and the changes in net assets available for benefits for  the
years   then   ended,  in  conformity  with  accounting  principles
generally accepted in the United States of America.

Our audits were performed for the purpose of forming an opinion  on
the  basic financial statements taken as a whole.  The supplemental
schedule of assets held for investment purposes as of December  31,
2000,  is presented for the purpose of additional analysis  and  is
not  a  required  part  of the basic financial  statements  but  is
supplementary  information required by the  Department  of  Labor's
Rules  and  Regulations  for Reporting  and  Disclosure  Under  the
Employee Retirement Income Security Act of 1974.  This supplemental
schedule  is  the  responsibility of the  Plan's  management.   The
supplemental schedule has been subjected to the auditing procedures
applied in the audits of the basic financial statements and, in our
opinion,  is fairly stated in all material respects in relation  to
the basic financial statements taken as a whole.



/S/KPMG LLP



May 25, 2001


 2


                     AIRGAS, INC. 401(k) PLAN

          Statements of Net Assets Available for Benefits

                    December 31, 2000 and 1999

                                            2000          1999
                                            ----          ----
                                               
Investments                           $ 127,753,554  $ 126,022,429
                                        -----------    -----------
Receivables:
  Employee contributions                  1,031,817        911,630
  Employer contributions                    293,373        265,241
                                        -----------    -----------
        Total receivables                 1,325,190      1,176,871
                                        -----------    -----------

  Participant loans receivable            5,961,386      5,350,628
                                        -----------    -----------
   Net assets available for benefits  $ 135,040,130  $ 132,549,928
                                        ===========    ===========

   See accompanying notes to financial statements.

 3


                     AIRGAS, INC. 401(k) PLAN

    Statements of Changes in Net Assets Available for Benefits

              Years ended December 31, 2000 and 1999

                                                    2000           1999
                                                    ----           ----
                                                        
   Additions:
     Additions to net assets attributable to:
      Investment income:
         Net (depreciation) appreciation in
          fair value of investments            $(25,211,824)  $  9,060,042
         Interest and dividends                  12,494,171      5,907,679
                                                -----------    -----------
           Total investment (loss) income, net  (12,717,653)    14,967,721

     Contributions:
      Employee                                   21,541,344     12,827,724
      Employer                                    5,965,433      4,879,037
                                                -----------    -----------
           Total contributions                   27,506,777     17,706,761
                                                -----------    -----------
   Deductions:
      Benefits paid to participants             (13,777,439)   (13,348,327)
      Transfers to other benefit plans                   --     (4,696,079)
      Administrative fees                          (155,820)      (104,644)
                                                -----------    -----------
           Total deductions                     (13,933,259)   (18,149,050)
                                                -----------    -----------
     Transfers from other benefit plans           1,634,337      3,249,450
                                                -----------    -----------
           Net additions                          2,490,202     17,774,882
                                                -----------    -----------
   Net assets available for benefits:
     Beginning of year                          132,549,928    114,775,046
                                                -----------    -----------
     End of year                               $135,040,130   $132,549,928
                                                ===========    ===========

   See accompanying notes to financial statements.

 4

                     AIRGAS, INC. 401(k) PLAN

                   Notes to Financial Statements

                    December 31, 2000 and 1999

(1) Description of the Plan

   The  following description of the Airgas, Inc. 401(k) Plan  (the
   Plan)  provides  general information only.  Participants  should
   refer to the Plan agreement for more complete information.

   (a) General

       The   Plan   is   a   defined  contribution  plan   covering
       substantially all employees of Airgas, Inc. and subsidiaries
       (the  Company).   Included in the assets  of  the  Plan  are
       contribution  rollovers  from  benefit  plans  of   acquired
       companies,  where applicable.  The Plan is  subject  to  the
       provisions  of the Employee Retirement Income  Security  Act
       of  1974 (ERISA).  The Vanguard Fiduciary Trust Company (the
       Trustee) serves as the trustee for the Plan.


   (b) Contributions

       Employee

       The  Plan  permits  a  participant to defer  up  to  15%  of
       eligible  compensation.  The amount of deferred compensation
       is  treated  as  a salary reduction and is  not  subject  to
       federal  income tax until withdrawn from the  Plan.   In  no
       event   will  the  contribution  exceed  maximum   allowable
       contributions as prescribed by the Internal Revenue Service.

       Employer

       Contributions  to  the Plan by the Company  are  made  on  a
       matched  basis and at a rate of 50% of participant  deferred
       compensation.   The  employer match is applied  on  employee
       contributions  of  up to 4% of eligible compensation  (i.e.,
       maximum  employer  match  is 2% of  eligible  compensation).
       Plan   participants  are  eligible  for   Company   matching
       contributions  as  of the first day of each  calendar  month
       after the date the employee is first credited with one  hour
       of  service. If employees become eligible to participate  in
       the  Plan through a business acquisition, participation  may
       be delayed up to seven months from the date of acquisition.

 5
                     AIRGAS, INC. 401(k) PLAN

                   Notes to Financial Statements

                    December 31, 2000 and 1999


       In  addition to the required Company match, the Company  may
       elect  to make discretionary contributions as determined  by
       the  Board  of  Directors.  The Company made profit  sharing
       discretionary contributions of $2,718,558 and $1,904,532 for
       the  years  ended December 31, 2000 and 1999,  respectively.
       The  Company determines its discretionary contribution based
       on  the  overall  profitability of  the  Company.   Of  that
       amount,  the Company allocates a portion to each  subsidiary
       based  on  that subsidiary's profitability.  Each subsidiary
       then allocates its profit sharing to individual participants
       based on their proportionate compensation.

   (c) Participant Accounts

       Contributions  are invested as directed by each  participant
       in  12  separate  investment funds.   Each  participant  may
       designate, by written notice to the Plan administrator,  how
       the  contributions to his or her account are to be allocated
       among  the 12 funds.  Participants are required to  allocate
       contributions  to the funds in increments  of  1%  of  total
       contributions.  In the event a participant fails to submit a
       written notice of allocation, contributions will be invested
       in  the Retirement Savings Trust.  In addition to the  above
       initial  election, participants may elect,  by  calling  the
       Trustee,  to  transfer, in 1% increments of the total  funds
       credited  to  their  account, monies  among  the  investment
       funds.   Interest, dividends and other income earned by  the
       investment funds, net of administrative fees, are reinvested
       in   the   same   fund.   Such  amounts  are  allocated   to
       participants  based upon the proportion of  a  participant's
       balance to the total fund balance.

   (d) Participant Loans

       The  Plan  administrator  may, upon  the  application  of  a
       participant,  direct the Trustee to make a loan  to  such  a
       participant.   The  maximum the participant  may  borrow  is
       limited  to  the  lesser  of 50% of the  participant's  Plan
       balance or $50,000.  The minimum loan amount is $1,000.  The
       loan will bear interest at a rate equal to prime plus 2% and
       shall  provide  for  periodic repayment  over  a  reasonable
       period  of time not to exceed five years for general purpose
       loans and 30 years for principal residence loans.  The prime
       rate at December 31, 2000, was 9.5%.

   (e) Vesting

       Participants  are  immediately vested in all  contributions.
       In  addition,  all  earnings on such investments  are  fully
       vested.

 6
                     AIRGAS, INC. 401(k) PLAN

                   Notes to Financial Statements

                    December 31, 2000 and 1999

   (f) Payment of Benefits

       Upon   retirement,   death   or  termination   of   service,
       participants or beneficiaries are entitled to a distribution
       equal   to   the  total  value  of  their  accounts.    Such
       distributions are generally payable in cash.

       Participants experiencing serious financial hardships may be
       entitled  to  a  distribution  upon  approval  by  the  Plan
       administrator.

   (g) Transfer to Other Benefit Plans

       The  transfer  to other benefit plans during 1999  primarily
       resulted  from  Plan  disbursements in connection  with  the
       fiscal 1999 divestiture of the Company's Calcium Carbide and
       Carbon products operations.

   (h) Administrative Expenses

       All administrative expenses have been paid by the Plan.


(2) Merger of 401(k) Plans

   During  2000 and 1999, in connection with acquisitions completed
   by  the  Company,  there were transfers in from  certain  401(k)
   plans of acquired companies.


(3) Summary of Significant Accounting Policies

   (a) Basis of Accounting

       The  accompanying financial statements of the Plan have been
       prepared on the accrual basis of accounting and present  net
       assets available for benefits and changes in those assets.

   (b) Investments

       Investments  in the Airgas Common Stock Fund are  valued  at
       market value based upon closing prices at the Plan year-end.
       The  fair values of the Vanguard funds are based on the  net
       asset values per share at year-end.

 7
                     AIRGAS, INC. 401(k) PLAN

                   Notes to Financial Statements

                    December 31, 2000 and 1999


       Purchases and sales of investments are recorded on a  trade-
       date  basis.   The  average  cost  method  is  followed   in
       determining  the cost of investments sold.  Interest  income
       is  accrued when earned. Dividend income is recorded on  the
       ex-dividend  date.  Capital gain distributions are  included
       in dividend income.

       Investment options as of December 31, 2000, were as follows:

       The  Airgas Common Stock Fund invests in Airgas, Inc. common
       stock to provide the possibility of long-term growth through
       increases  in the value of the stock.  The stock  value  per
       share was $6.81 at December 31, 2000.

       The Vanguard Explorer Fund seeks to provide long-term growth
       of  capital  by investing in a diversified group  of  small-
       company stocks with prospect for above-average growth.   The
       value per share was $60.09 at December 31, 2000.

       The Vanguard International Growth Fund seeks to provide long-
       term  growth  of  capital by investing  in  stock  of  high-
       quality, seasoned companies based outside the United States.
       Stocks are selected from more than 15 countries.  The  value
       per share was $18.87 at December 31, 2000.

       Vanguard U.S. Growth Fund seeks to provide long-term  growth
       of  capital  by  investing in large, high-quality,  seasoned
       U.S. companies with records of exceptional growth and above-
       average  prospects for future growth.  The value  per  share
       was $27.65 at December 31, 2000.

       The  Vanguard  500  Index Fund seeks  to  provide  long-term
       growth of capital and income from dividends by holding  each
       of  the  500  stocks that make up the unmanaged  Standard  &
       Poor's  500 Composite Stock Price Index, a widely recognized
       benchmark  of U.S. market performance.  The value per  share
       was $121.86 at December 31, 2000.

       The  Vanguard  Wellington Fund seeks to provide  income  and
       long-term growth of capital, without undue risk to  capital,
       by  investing approximately 65% of its assets in stocks  and
       the  remaining 35% in bonds.  The value per share was $28.21
       at December 31, 2000.

 8
                     AIRGAS, INC. 401(k) PLAN

                   Notes to Financial Statements

                    December 31, 2000 and 1999


       The Vanguard LifeStrategy Growth Fund seeks to provide long-
       term  growth  of  capital and income by  investing  in  four
       Vanguard  funds:   a domestic stock fund,  an  international
       stock  fund, a bond fund and an asset allocation fund.   The
       Portfolio's asset allocation ranges are expected to  be  65%
       to  90%  stocks,  10%  to  35% bonds  and  0%  to  25%  cash
       investments.  The value per share was $19.59 at December 31,
       2000.

       The  Vanguard  LifeStrategy Moderate Growth  Fund  seeks  to
       provide income and long-term growth of capital and income by
       investing in four Vanguard funds: a domestic stock fund,  an
       international  stock  fund,  a  bond  fund  and   an   asset
       allocation  fund.   The Portfolio's asset allocation  ranges
       are  expected to be 45% to 70% stocks, 30% to 55% bonds  and
       0%  to 25% cash investments.  The value per share was $17.24
       at December 31, 2000.

       The Vanguard LifeStrategy Conservative Growth Fund seeks  to
       provide income and moderate long-term growth of capital  and
       income  by  investing in five Vanguard  funds:   a  domestic
       stock fund, international stock fund, two bond funds and  an
       asset  allocation  fund.  The Portfolio's  asset  allocation
       ranges  are  expected to be 25% to 50% stocks,  50%  to  75%
       bonds  and 0% to 25% cash investments.  The value per  share
       was $14.70 at December 31, 2000.

       The  Vanguard  LifeStrategy Income Fund seeks to  provide  a
       high level of income by investing in four Vanguard funds:  a
       stock  fund,  two  bond funds and an asset allocation  fund.
       The  Portfolio's asset allocation ranges are expected to  be
       5%  to  30%  stocks, 70% to 95% bonds and  0%  to  25%  cash
       investments.   The  value per share was $13.00  at  December
       31, 2000.

       The Vanguard Total Bond Market Index Fund seeks to provide a
       high  level  of interest income by attempting to  match  the
       performance of the unmanaged Lehman Brothers Aggregate  Bond
       Index,  a  widely recognized measure of the  entire  taxable
       U.S.  bond  market.   The  value  per  share  was  $9.96  at
       December 31, 2000.

 9
                     AIRGAS, INC. 401(k) PLAN

                   Notes to Financial Statements

                    December 31, 2000 and 1999

       The  Vanguard  Retirement Savings Trust seeks  stability  of
       principal and a high level of current income consistent with
       a  two- to three-year average maturity.  The trust is a tax-
       exempt  collective  trust invested primarily  in  investment
       contracts  issued  by  insurance  companies  and  commercial
       banks,  and  similar  types of fixed-principal  investments.
       The trust intends to maintain a constant net asset value  of
       $1 per share.

   (c) Use of Estimates

       The  preparation of the financial statements  in  accordance
       with  accounting principles generally accepted in the United
       States  of America requires the Plan administrator  to  make
       estimates  that affect the reported amounts  of  assets  and
       liabilities at the date of the financial statements and  the
       reported amounts included in the statement of changes in net
       assets  available for Plan benefits.  Actual  results  could
       differ from those estimates.


(4) Investments



   The following investments represent 5% or more of the net
   assets available for benefits at December 31, 2000 and 1999:

                                            2000            1999
                                            ----            ----
                                                 
    Airgas Common Stock Fund          $  17,922,364    $ 21,752,826
    Vanguard U.S. Growth Fund            33,502,706      39,044,068
    Vanguard 500 Index Fund              14,402,139      13,529,546
    Vanguard Wellington Fund             17,376,741      15,676,581
    Vanguard Retirement Savings Trust    21,667,221      22,313,888



   During  the  years  ended December 31, 2000 and  1999,  the  net
   (depreciation) appreciation in the fair value of investments
   (including realized gains and losses) was as follows:

                                            2000             1999
                                            ----             ----
                                                 
    Airgas Common Stock Fund          $ (19,383,952)   $   1,509,563
    Mutual Funds                         (5,827,872)       7,550,479
                                        -----------      -----------
    Net (depreciation) appreciation
     in fair value of investments     $ (25,211,824)   $   9,060,042
                                        ===========      ===========

 10
                     AIRGAS, INC. 401(k) PLAN

                   Notes to Financial Statements

                    December 31, 2000 and 1999

(5) Tax Status

   The  Internal Revenue Service (IRS) has determined and  informed
   the  Company by a letter dated January 31, 2000, that  the  Plan
   is  designed  in  accordance  with applicable  sections  of  the
   Internal  Revenue  Code  and is therefore  exempt  from  federal
   income  taxes.   The Plan has been amended since  receiving  the
   determination letter.  However, the Plan administrator  believes
   that  the  Plan is designed and is currently being  operated  in
   compliance  with  the applicable requirements  of  the  Internal
   Revenue  Code  and  continues to be exempt from  federal  income
   taxes.


(6) Related-Party Transactions

   The  Plan  invests  in shares of mutual funds  (Vanguard  funds)
   managed  by  an  affiliate of Vanguard Fiduciary Trust  Company,
   who  acts  as  trustee for the Plan. Investment transactions  of
   the  Plan qualify as party-in-interest transactions, but are not
   prohibited transactions.


(7) Plan Termination

   Although  it has not expressed any intent to do so, the  Company
   has  the  right  under the Plan to discontinue its contributions
   at  any time and to terminate the Plan subject to the provisions
   of  ERISA.   Upon  termination of the Plan,  participants  would
   remain  fully  vested in all amounts credited to their  accounts
   under the Plan.


(8) Defaulted Loans

   During  the  year  ended  December  31,  2000,  there  were   49
   participants  who were in default of their loans,  including  47
   participants who were active employees.  Loans in the amount  of
   $125,897  were in default and included in participant  loans  as
   of December 31, 2000.

   During  the  year  ended  December  31,  1999,  there  were   88
   participants  who were in default of their loans,  including  87
   participants who were active employees.  Loans in the amount  of
   $402,079  were in default and included in the participant  loans
   as of December 31, 1999.

 11
Schedule 1
----------


                     AIRGAS, INC. 401(k) PLAN

          Schedule of Assets Held for Investment Purposes

                         December 31, 2000


    Number
      of
    Shares            Investments *                                   Cost       Fair Value
    ------            -----------                                     ----       ----------
                                                                         

                 Common stock:
    2,630,806      Airgas Common Stock Fund                      $ 28,427,525  $ 17,922,364

                 Mutual funds:
       98,675      Vanguard Explorer Fund                           6,580,263     5,929,376
      178,482      Vanguard International Growth Fund               3,600,088     3,367,953
    1,211,671      Vanguard U.S. Growth Fund                       39,176,756    33,502,706
      118,186      Vanguard 500 Index Fund                         13,694,775    14,402,139
      615,978      Vanguard Wellington Fund                        17,655,426    17,376,741
      286,556      Vanguard LifeStrategy Growth Fund                5,625,573     5,613,625
      228,118      Vanguard LifeStrategy Moderate Growth Fund       3,901,696     3,932,759
       98,754      Vanguard LifeStrategy Conservative Growth Fund   1,454,958     1,451,678
       75,427      Vanguard LifeStrategy Income Fund                  969,391       980,551
      161,289      Vanguard Total Bond Market  Index Fund           1,601,780     1,606,441

                 Vanguard Retirement Savings Trust, 5.89%          21,667,221    21,667,221

                 Employee loans, 7% to 12%                          5,961,386     5,961,386
                                                                  -----------   -----------
                 Total assets held for investment purposes       $150,316,838  $133,714,940
                                                                  ===========   ===========

    * - Investment transactions of the Plan qualify as party-in-interest transactions.