CN Standards for Stainless Steel Hot Rolled Plate

For hot rolled stainless steel the old BS1449 and BS1501 standards have been replaced by EN Standards:

EN10088-2 replaces BS1449-Part 2: 1983
EN10028-7 replaces BS1501-Part3: 1990
EN10095 covers heat resisting grades
EN10259 & ISO 9445: Tolerances for cold rolled material (Sheets, plate, coil) up to 6.5mm thick
EN10029 & ISO 18286: Tolerances for 'Quarto' hot rolled Plate 3mm thick and above
EN10051 & Now ISO 9445 / 9444: Tolerances for continuously produced (CPP) hot rolled plate

Tolerances

For cold rolled plate please refer to the datasheet on cold rolled. Note that in this datasheet there are two sets of tolerances tables – One set for Quarto Plate to EN10029 and one set for CPP plate to EN10051

For CPP there are 3 categories of tolerances according to the grade where:

Flatness - Quarto Plate

Thickness (mm)	Tolerances (mm) over Given Length (mm)	Tolerances (mm) over Given Length (mm)
	1000	2000
3.0 to 4.9	9	14
5.0 to 7.9	8	12
8.0 to 14.9	7	11
15.0 to 24.9	7	10
25.0 to 39.0	6	9
40.0 to 250.0	5	8

Flatness - CPP

Width (mm)	Tolerances for Given Category*	Tolerances for Given Category*	Tolerances for Given Category*
Up to 1200	18	23	**
1200 to 1500	23	30	**
Over 1500	28	38	**
Over 1500	28	38	**

Note:

* These flatness tolerances only apply for thicknesses up to 25mm

** To be agreed at the time of enquiry and order

Length - Quarto Plate

Length (mm)	Tolerance (mm)	Tolerance (mm)
Under 4000	-0	+20
4000 to 5999	-0	+30
6000 to 7999	-0	+40

Length - CPP

Length (mm)	Tolerance (mm)	Tolerance (mm)
Under 2000	-0	+20
2000 to 7999	-0	0.05 x Length

Width - Quarto Plate

Nominal Thickness (mm)	Tolerance (mm)	Tolerance (mm)
Up to 40	-0	+20
40 to 150	-0	+25
150 to 400	-0	+30

Width - CPP

Length (mm)	Plus Tolerances (mm) (-0)	Plus Tolerances (mm) (-0)
Up to 1200	+20	+3
1201 to 1850	+20	+5
Over 1850	+25	+6

Thickness - Quarto Plate

Thickness (mm)	Tolerance (mm) Class B	Tolerance (mm) Class B
Minus	Minus	Plus
3.00 to 4.90	0.3	0.7
5.00 to 7.90	0.3	0.9
8.00 to 14.9	0.3	1.1
15.0 to 24.9	0.3	1.3
25.0 to 39.9	0.3	1.7
40.0 to 79.9	0.3	2.3
80.0 to 149	0.3	2.9
150 to 250	0.3	3.3

Thickness - CPP

Thickness (mm)	Tolerances +/- (mm) for Given Width	Tolerances +/- (mm) for Given Width	Tolerances +/- (mm) for Given Width	Tolerances +/- (mm) for Given Width
	Up to 1200	1204 to 1500	1501 to 1800	Over 1800
Up to 2.00	0.17	0.19	0.21	-
2.01 to 2.50	0.18	0.21	0.23	0.25
2.51 to 3.00	0.20	0.22	0.24	0.26
3.01 to 4.00	0.22	0.24	0.26	0.27
4.01 to 5.00	0.24	0.26	0.28	0.29
5.01 to 6.00	0.26	0.28	0.29	0.31
6.01 to 8.00	0.29	0.30	0.31	0.35
8.01 to 10.00	0.32	0.33	0.34	0.40
10.01 to 12.50	0.35	0.36	0.37	0.43
12.51 to 15.00	0.37	0.38	0.40	0.46
15.10 to 25.00	0.40	0.42	0.45	0.50

Note:

These figures must be increased for stainless steel by:

Material Certification

Where multi-certification is required, a combination of EN10088-2, EN10028-7, EN10029 or 10051 will appear together with the appropriate ASTM Standards.

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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 S 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.