Stainless Steel: EN Standards for Stainless Steel Bar

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Hilary Ray
6 years ago
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1 The old BS970 Parts 1 & 3: 1991 standards have been replaced by a number of EN Standards, the most important of which are shown below EN Replaces BS970 Part 1: 1991 & BS970 Part 3: 1991 covering chemical composition & mechanical properties EN10058 Tolerances for Hot Rolled Flat Bars EN10059 Tolerances for Hot Rolled Square Bars EN10060 Tolerances for Hot Rolled Round Bars EN10061 Tolerances for Hot Rolled Hexagonal Bars EN10278 Tolerances for Bright Bars (Drawn, Turned or Ground) ISO186 Parts 1 & 2 Tolerance Classifications (see page 4) TOLERANCES ~ The ISO tolerances shown are taken from ISO 286 ~ All other tolerances shown in this document are based upon the relevant part's of the applicable EN Standard's ~ For tolerances on Rolled Edge Flat Bar please refer to separate Datasheet DIAMETER - SMOOTH TURNED (These are H10 tolerances, which are 'all minus' tolerances ) Diameter (mm) Tolerance (mm) 18 to / to / to / DIAMETER - ROUGH TURNED (These are 'all plus' tolerances) Diameter (mm) Tolerance (mm) 75 to / to / to / +30 [1 OF 8] CONTINUED

2 DIAMETER - BRIGHT DRAWN Note These are H9 Tolerances H9 Tolerances are 'all minus' tolerances: +0mm / - Figure in table Diameter (mm) Tolerance (mm) 6 to / to / to / WIDTH & THICKESS - HOT ROLLED SQUARE Size (mm) Tolerance (mm) + or - 75 to to to THICKNESS - HOT ROLLED FLAT Size (mm) Tolerance (mm) + or - Up to to to WIDTH - HOT ROLLED FLAT Size (mm) Tolerance (mm) + or - 10 to to to to to [2 OF 8] CONTINUED

3 ANGLE BARS - LEG LENGTH Leg (mm) Leg Length Tol (mm) + or - Thickness (mm) + or & , 70, 75, 80, 90, ANGLE BARS - INTERNAL RADIUS Leg (mm) Max Internal Radius (mm) 20, 25, , , 70, 75, , [3 OF 8] CONTINUED

4 ISO 286 TOLERANCES IN MM EXAMPLES: H = All Minus Tolerance eg 45mm dia H9 = +0 / J = Tolerance Divided eg 45mm dia J9 = +/ K = All Plus Tolerance eg 45mm dia K9 = +0062/ -0 ( The K tolerance is usually only applied to larger diameter bars - over 75mm H8 = Precision Ground H9 = Bright Drawn H10 = Smooth Turned In the following table: TOLERANCE IN mm FOR GIVEN TOLERANCE NUMBER Diameter (mm) >1 to 3 inc >3 to 6 inc >6 to 10 inc >10 to 18 inc >18 to 30 inc >30 to 50 inc >50 to 80 inc >80 to 120 inc >120 to 180 inc >180 to 250 inc >250 to 315 inc >315 to 400 inc >400 to 500 inc > [4 OF 8] CONTINUED

5 STRAIGHTNESS TOLERANCES FOR BRIGHT BARS Taken from BS EN 10278:1999, applicable to Bright Bars only Method of measuring deviation - Preferred Method B1 from BS EN 10278: 1 The bar shall be supported on a suitable surface so as to eliminate or minimise sagging 2 A 1 metre long straight edge shall be placed on the surface of the bar at any position along it's length No part of the straight edge shall be within 150mm of the ends of the bar 3 Straightness shall be determined by measuring the gap between the bar and the straight edge by suitable means such as a feeler guage The following table indicates: DEVIATION FROM STRAIGHTNESS Product Round Dimension Max Deviation in mm within a 1mtr length measured at least 150mm from either end of bar 10mm Square & Hexagon < or = 75mm 10mm Square & Hexagon > 75mm 15mm Flat Width < 120mm On Width: 15mm Flat Width < 120mm On Thickness: 20mm Flat Width > or = 120mm On Width: 20mm Flat Width/Thickness < 101 On Thickness: 25mm Flat Width > or = 120mm On Width: 25mm Flat Width/Thickness > or = 101 On Thickness: 30mm [5 OF 8] CONTINUED

6 STAINLESS STEEL GRADES The following Table lists: Stainless Steel Grades, Compositions & Typical Mechanical Properties Mechanical Properties apply to Rolled Products EN BS AISI EN No Comp Comp Comp Comp Comp Mech Mech Mech Obsolet e C Cr Ni Mo Other Proof 02%N mm Tensile Nmm Elong % S17 410S - 008x S x Al x S x S x x Nb, Ti Ti - 005x Ti Nb - 005x Nb S x Ti (444) x Ti S A S AM xS S B S D S CM xS S S BM xS B V - 900max C max S x Cu N S E 007x S x S M 010x xS L x S11 304L x S / S61 304LN x xN x Mn [6 OF 8] CONTINUED

7 STAINLESS STEEL GRADES - CONT'D The following Table lists: Stainless Steel Grades, Compositions & Typical Mechanical Properties Mechanical Properties apply to Rolled Products EN BS AISI EN No Comp Comp Comp Comp Comp Mech Mech Mech Obsolet e C Cr Ni Mo Other Proof 02% Nmm Tensile Nmm Elong % S J 007x S11 316L x S61 316LN x xN S13 316L x S13 316L x S J S12 317L x x xN S B 008x Ti S F 008x Nb S31 (316Ti) - 008x Ti S x xCu x xCu S x S x S51 321H - 010x TI [7 OF 8] CONTINUED

8 CONTACT Address: Web: Please make contact directly with your local service centre, which can be found via the Locations page of our web site wwwaalcocouk REVISION HISTORY Datasheet Updated 04 October 2016 DISCLAIMER This Data is indicative only and as such is not to be relied upon in place of the full specification In particular, mechanical property requirements vary widely with temper, product and product dimensions All information is based on our present knowledge and is given in good faith No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed & online) and manufacturers data No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources Material supplied by the Company may vary significantly from this data, but will conform to all relevant and applicable standards As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied Advice given by the Company to any third party is given for that party s assistance only and without liability on the part of the Company All transactions are subject to the Company s current Conditions of Sale The extent of the Company s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request [8 OF 8]

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