SI BSxb323: PART] 82 MMH LL24L65 O102L82 7 a AS BS 6323 : Part 3: 1982 ! a ee (© Beth Strdards Intttion. No part of hie publication may be phetacopied or ctherire eprodoed witout th vcr xsi in witing of BSt —————ee——L————e—e— British Standard Specification for Seamless and welded steel tubes for automobile, mechanical and general engineering purposes Part 3. Specific requirements for hot finished seamless steel tubes ‘Tubes en acier soudés et sans soudure pour |‘automobile, la mécanique et la technique générale Partie 3. Tubes en acier sans soudure finis & chaud, Caractéristiques particulidres Nahtlose und geschweiBte Stahirohre fiir den Kraftfahrzeugbau, Maschinenbau und fir allgemeine technische Zwecke Teil 3. Besondere Anforderungen an warmgafertigte nahtlose Stahlrohre British Standards Institution Copprge by the Brtsh Standards Tesutoton ed Nov 10 10:20:22 1999BS 6323 : Part 3: 1982 HFS Contents Pege Foreword Inside front cover Cooperating orsenizations Back cover Specification 1. Scope 2. General 3, Method of manufacture 4. Delivery condition 8. Chemical composition Foreword ‘Ts British Standard has been prepared under the direction of the Iron end Stoel Standerds Committe. It is a combined standard auperaoding BS 080 : 1050, BE 1775 : 1064 ond BS 3014 : 1958 which are withdrawn. In BS 6323, manufacturing processes have been aligned with currant procedures, and processes no longer usod, Le. oxY= acetylene welding and hydraulic lap walding, have been deleted, Terminology relating to the designation of certain manufacturing processes has been updated, ie. SAW roplaces EFW, and CFS roplaces CDS. Additionally, in combining the standards, stel grades have been rationalized and aligned, with delivery conditions now being clearly designated by letter codes. ‘This standard is published In eight soparate Parts os follows: Pert 1. General requirements Compliance with a British Standard dot Goppnne by he Beth Stanaaras Testonon ed Nov 10 1020350 1999 BSI BS*b323: PART#S 82 MM Dh24bL9 0102263 9 ml re +=@ 6. Mechanical properties 1 7. Dimensions and sectional properties 2 8, Tolerancns 2 8, Tests 2 Tables 4, Chemical composition and mechanical properties 1 2, Valuot for daformation fector C 2 3, Dimensions of hot finished seamless tubes 3 Part 2. Specie requirements for hot finished welded evi tubes, Pat 3 Specific sequent for hos fnshed seamless = @ seo utes, Part 4, Spoctie requirements for cold finished seamiess steel tubes fle requirements for slectric resistance ing induction welded) ste! tubes A Part 6. Specific requirements for cold finished electric Fetletanco wolded (includinginduetion wolded) steel tubes Part 7. Spoeifie requirements for submorged are welded steel tubes Part 8. Specific requirements for fongitucinally weldad stainless stl tubes not of itself confor immunity from logal obligations.(BST BSeb323: PARTE 62 MM DL24bL5 0102084 0 om BS 6323 : Part 3: 1982 HFS British Standard Specification for Seamless and welded steel tubes for automobile, mechanical and general engineering purposes Part 3. Specific requirements for hot finished seamless stee! tubes Os 1. Scope ‘together with othar details as specified in clause 5 of This Part of 8S 6323, which is used in conjunction with 85 6323: Part 1 : 1982, es appropriate Part 1 of the same standard, covers the specific requirements for hot finished seamless steel tubes for use in the 3. Method of manufacture ‘automobile, mechanical and ganaral engineering industries. The tubes shall bo manufactured by a seamless process © instinct! See wa aay” 4, Dalry conn condition of the tubes. ‘The tubes shall be supplied in the hot finished condition, eee tas [NOTE 2. Tho tls ofthe publication roferre to in this Part of thie stenderd ee listed on the inside back enw 5. Chemical composition ‘The steel shall show on ladle analysis the composition given 2. General in table 1 appropriate to the steel grade specified. ‘The tubes shall comply with the general requirements of 8S 6323 : Part 1 ond the specific requirements ofthis Part 6 Mechanical properties of the samo standard, which overs tuber up to and ‘The tancile proparti of the tuboe, appropriate to their including 610 mm outside diameter. steo! grade, determinad in accordaneo with 18.2 of ‘The tubes shall bo of stool grados 3, 4,6, or 8. The grade BS 6323 : Part 1 : 1962 shall be es given in table 1 requited shall be specified inthe enquiry and order, For other mechanical properties, see clause 9. Table 1. Chemical composition and mechanical properties (see note) Chamical composition (ale ena) Mechanical propertios e@ Designation | © Si Mn e s Re Ren A mex. max, | mae | in, vin | in * % % % * wine? | wim? | HFS 3 020 | 035 | 090 | 0050 | 0050 | 215 | 30 | 24 HFS 4 025 |o35 | 120 | 0050 | 0.050 | 235 | a0 | 22 uess‘t 023 | oso | 150 | 0050 | cos | 340 | 490 | 20 HFS 8 040% | 0.35 | 060t0 | 0050 | 0.050 | 0 | 540 | 12 oss 0.90 sin rofinig laments may be add o thi are atthe ootion of the manufacturer. ‘For tlcknatses in exces of 30 mm it spormisile fr the minimum yield strength tobe reduced by & N/mm* NOTE. Excent for grace 8, wldng of tubes ofthese grades doa nat rquiespeea techniques but eae should bo taken and welding oul be versed ut ia accordant ith the pudanenghet in the eppropate uritah Stans for welding, 09. 88 S138, Welding of rads B may roqulre special techies. Copprgne by he Sntsh Stanaaras Tesutonon ed Nov 10 102051 1999