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Stainless Steel - General Information - EN Standards for Stainless Steel Bar

EN Standards for Stainless Steel Bar

The old BS970 Parts 1 & 3: 1991 standards have been replaced by a number of EN Standards, the most important of which are shown below

EN10088-3 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 30+0 / -0.084
31 to 50+0 / -0.100
51 to 79+0 / -0.120

Diameter - Rough Turned

(These are 'all plus' tolerances)

Diameter (mm)Tolerance (mm)
75 to 150-0 / +1.5
151 to 225-0 / +2.0
226 to 410-0 / +3.0

Diameter - Bright Drawn

.

Note

These are H9 Tolerances
H9 Tolerances are 'all minus' tolerances:

+0mm / - Figure in table

.

Diameter (mm)Tolerance (mm)
6 to 10+0 / -0.036
11 to 18+0 / -0.043
19 to 30+0 / -0.052

Width & Thickess - Hot Rolled Square

.

.

Size (mm)Tolerance (mm) + or -
75 to 1501.5
151 to 2252.0
226 to 4103.0

Thickness - Hot Rolled Flat

.

.

Size (mm)Tolerance (mm) + or -
Up to 200.5
20 to 401.0
40 to 801.5

Width - Hot Rolled Flat

.

.

Size (mm)Tolerance (mm) + or -
10 to 400.75
40 to 801.0
80 to 1001.5
100 to 1202.0
120 to 1502.5

Angle Bars - Leg Length

Leg (mm)Leg Length Tol (mm) + or -Thickness (mm) + or -
201.50.4
251.50.5
302.00.5
40 & 502.00.6
60, 70, 75, 80, 90, 1003.00.75

Angle Bars - Internal Radius

Leg (mm)Max Internal Radius (mm)
20, 25, 304
405
50, 607
65, 70, 75, 809
90, 10010

ISO 286 Tolerances in mm

EXAMPLES:

H = All Minus Tolerance  e.g. 45mm dia. H9 = +0 / -0.062

J = Tolerance Divided  e.g. 45mm dia. J9 = +/- 0.031

K = All Plus Tolerance e.g. 45mm dia. K9 = +0.062/ -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)678910111213
>1 to 3 inc.0.0070.0090.0140.0250.0400.0600.0900.140
>3 to 6 inc.0.0080.0120.0180.0300.0480.0750.1200.180
>6 to 10 inc.0.0090.0150.0220.0360.0580.0900.1500.220
>10 to 18 inc.0.0110.0180.0270.0430.0700.1100.1800.270
>18 to 30 inc.0.0130.0210.0330.0520.0840.1300.2100.330
>30 to 50 inc.0.0160.0250.0390.0620.1000.1600.2500.390
>50 to 80 inc.0.019-0.0460.0740.1200.1900.3000.460
>80 to 120 inc.0.022--0.0870.1400.2200.3500.540
>120 to 180 inc.0.025--0.1000.1600.2500.4000.630
>180 to 250 inc.---0.1150.1850.2900.4600.720
>250 to 315 inc.-----0.3200.5200.810
>315 to 400 inc.-----0.3600.5700.890
>400 to 500 inc.-----0.4000.6300.970
> 500-----0.4400.7001.100

Straightness Tolerances for Bright Bars

Taken from BS EN 10278:1999, applicable to Bright Bars only.

 

Method of measuring deviation - Preferred Method B.1 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

ProductDimensionMax Deviation in mm within a 1mtr length measured at least 150mm from either end of bar
Round1.0mm
Square & Hexagon< or = 75mm1.0mm
Square & Hexagon> 75mm1.5mm
FlatWidth < 120mmOn Width: 1.5mm
FlatWidth < 120mmOn Thickness: 2.0mm
FlatWidth > or = 120mmOn Width: 2.0mm
FlatWidth/Thickness < 10.1On Thickness: 2.5mm
FlatWidth > or = 120mmOn Width: 2.5mm
FlatWidth/Thickness > or = 10.1On Thickness: 3.0mm

Stainless Steel Grades

The following Table lists:

 

Stainless Steel Grades, Compositions & Typical Mechanical Properties

 

Mechanical Properties apply to Rolled Products

ENBSAISIEN No.CompCompCompCompCompMechMechMech
ObsoleteCCrNiMoOtherProof 0.2%NmmTensile NmmElong %
1.4000403S17410S-0.08x12---20-250400-60019
1.4002405S17405-0.08x12--0.2 Al210-250400-60017
1.4003---0.03x110.5--250-320450-65018-20
1.4016430S17430600.08x17---240-280430-63018-20
1.4113434S17434-0.08x17-1-260-280450-63018
1.4509---0.015x18--Nb, Ti---
1.4510-430Ti-0.05x17--0.6 Ti230-240420-60023
1.4511-430Nb-0.05x17--0.6 Nb230-240420-60023
1.4512409S19409-0.03x11--0.5 Ti210-220380-56025
1.4521-(444)-0.025x17-20.6 Ti---
1.4006410S2141056A.08-.1512---400-450550-85012-20
1.4005416S2141656AM.08-0.1512--.35xS450650-85012
1.4021420S2942056B.16-.2512---450-550650-95010-15
1.4028420S4542056D.26-.3512---600740-100010-15
1.4029416S3741656CM.25-.3212--.35xS---
1.4057431S2943157.12-.22152-----
1.4104416S2941656BM.10-.1716-0.4.35xS500650-85010
1.4112-440B-.85-.9517-1.00.1V-900max12
1.4125-440C-.95-1.217-0.6--900max12
1.4594460S52--0.7x1451.51.5 Cu700-1000930-127010
1.4749-446-.15-.2026--0.2N---
1.4301304S3130458E0.07x188--210-260520-75045
1.4303305S19305-0.06x1811--200-250500-65045
1.4305303S3130358M0.10x188-0.35xS190-230500-70035
1.4306-304L-0.030x1810--200-250500-67045
1.4307304S11304L-0.030x188--200-250500-67045
1.4310301S21301-0.05/0.1176--250-280600-95040
1.4311304S61304LN-0.030x189-0.22xN270-320550-75040
1.4372-201-0.15x174.5-6.5Mn330-380750-95040

Stainless Steel Grades - Cont'd

The following Table lists:

 

Stainless Steel Grades, Compositions & Typical Mechanical Properties

 

Mechanical Properties apply to Rolled Products

ENBSAISIEN NoCompCompCompCompCompMechMechMech
ObsoleteCCrNiMoOtherProof 0.2% NmmTensile NmmElong %
1.4401316S3131658J0.07x17112-220-270520-68040
1.4404316S11316L-0.030x17112-220-270520-68040
1.4406316S61316LN-0.030x171120.22xN280-330580-78040
1.4432316S13316L-0.030x17112.5-220-270520-70040
1.4435316S13316L-0.030x17132.5-220-270520-70040
1.4436316S3331658J0.0517112.5-220-270500-73040
1.4438317S12317L-0.030x18133-220-270520-72035
1.4439---0.030x171340.22xN270-320580-78035
1.4541321S3132158B0.08x189-0.5Ti200-250500-72040
1.4550347S3134758F0.08x189-0.5Nb200-250500-72040
1.4571320S31(316Ti)-0.08x171120.5Ti220-270520-69040
1.4539904S13--0.020x192442xCu220-270520-73035
1.4547---0.020x201861xCu300-350650-85035
1.4833309S16309-0.15x2212--
1.4845310S24310-0.10x2520--
1.4878321S51321H-0.10x189-0.6TI

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Last Datasheet Revision

18 July 2019

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.

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