Thickness, Flatness, Bending

Thickness guarantee

SSAB guarantees a maximum thickness variation within one plate and strip as specified in the tables below.

Strenx® thickness guarantee - plate

Thickness tolerances are according to SSAB´s thickness guarantee and are closer than those specified in EN 10029 except for thicknesses exceeding 80 mm, for which the tolerance range is according to standard.

Nominal thickness (mm)	Thickness tolerances (mm)
Nominal thickness (mm)	Min	Max	Within plate
4.0 ≤ t < 5.0	-0.3	+0.3	0.4
5.0 ≤ t < 8.0	-0.3	+0.4	0.5
8.0 ≤- t < 15.0	-0.5	+0.4	0.6
15.0 ≤ t < 25.0	-0.6	+0.4	0.6
25.0 ≤ t < 40.0	-0.7	+0.8	0.7
40.0 ≤ t < 80.0	-0.9	+1.4	1.2

Other tolerances can be supplied upon special agreement. Please contact your local sales
representative for more information.

Strenx® thickness guarantee - hot rolled strip

Thickness tolerances are according to SSAB´s thickness guarantee and are closer than those specified in EN 10051 strip products. All values in the table conform to 1/2 EN Category D.

Nominal thickness (mm)	Thickness tolerances for a nominal width w (mm)
Nominal thickness (mm)	w ≤ 1200	1200 < w ≤ 1500	1500 < w ≤ 1800
t ≤ 2.00	± 0.12	± 0.13	± 0.14
2.00 < t ≤ 2.50	± 0.12	± 0.14	± 0.16
2.50 < t ≤ 3.00	± 0.14	± 0.15	± 0.17
3.00 < t ≤ 4.00	± 0.15	± 0.17	± 0.18
4.00 < t ≤ 5.00	± 0.17	± 0.18	± 0.19
5.00 < t ≤ 6.00	± 0.18	± 0.19	± 0.20
6.00 < t ≤ 8.00	± 0.20	± 0.21	± 0.21
8.00 < t ≤ 10.00	± 0.22	± 0.23	± 0.24
10.00 < t ≤ 12.50	± 0.24	± 0.25	± 0.26
12.50 < t ≤ 15.00	± 0.26	± 0.26	± 0.28

Other tolerances can be supplied upon special agreement. Please contact your local sales
representative for more information.

Strenx® thickness guarantee - cold rolled strip

Thickness tolerances are according to SSAB´s thickness guarantee, which corresponds to 3/4 EN 10131 normal tolerances for cold rolled products.

Nominal thickness (mm)	Thickness tolerances for a nominal width w (mm)
Nominal thickness (mm)	w ≤ 1200	1200 < w ≤ 1500	w > 1500
0.70 ≤ t ≤ 0.80	± 0.04	± 0.06	± 0.07
0.80 < t ≤ 1.00	± 0.06	± 0.07	± 0.08
1.00 < t ≤ 1.20	± 0.07	± 0.08	± 0.09
1.20 < t ≤ 1.60	± 0.09	± 0.10	± 0.12
1.60 < t ≤ 2.00	± 0.12	± 0.12	± 0.14
2.00 < t ≤ 2.10	± 0.14	± 0.15	± 0.16

Other tolerances can be supplied upon special agreement. Please contact your local sales
representative for more information.

Flatness tolerance

SSAB has four classes of flatness tolerances for Strenx®, depending on type of product and material strength. All classes conform to, or are better than the relevant standards. The flatness tolerances for class C and D fulfill the requirements in EN 10029, class A fulfills both the requirements in EN 10051 and EN 10029, and class B fulfills the requirements in EN 10131.

Class	Product	Nominal thickness (mm)	Flatness (mm/1m ruler) Steel Flatness
A	Strenx® 600MC D/E Strenx® 650MC D/E Strenx® 100 XF Strenx® 110 XF Strenx® 700MC D/E Strenx® 700MC Plus Strenx® 700HR W Strenx® 900MC Strenx® 900 Plus Strenx® 960MC Strenx® 960 Plus Strenx® 960 HR W Strenx® 1100MC	1.5 ≤ t ≤ 12.7	3
B	Strenx® 700 CR Strenx® 700 CR W Strenx® 960 CR Strenx® 1100 CR	0.7 ≤ t ≤ 2.1	6
C	Strenx® 100 Strenx® 700 E/F Strenx® 700 OME Strenx® P700 Strenx® 900 E/F Strenx® 960 E/F	4.0 ≤ t < 5.0	5
		5.0 ≤ t < 8.0	4
		8.0 ≤ t < 40.0	3
		40.0 ≤ t ≤ 160.0	3
D	Strenx® 1100 E/F Strenx® 1300 E/F	4.0 ≤ t < 5.0	7
		5.0 ≤ t < 6.0	5
		6.0 ≤ t < 20.0	4
		20.0 ≤ t ≤ 40.0	3

Class A is closer than EN 10051 and EN 10029.
Class B is closer than EN 10131 special tolerance class.
Classes C and D are closer than EN 10029 steel type L.
Short waves (300 - 1000 mm) according to EN 10029. In the case of discrepancies, the given class in the English version shall prevail.

Bending guarantee

SSAB has four bending guarantee classes for plate according to the chart below. Information on which class applies to each grade is provided in the respective data sheet. All classes conform to or are closer than the requirements in EN 10 025-6. The bending guarantees also conform to EN ISO 7438.

Strenx™ MC steels have a guaranteed minimum bending radius, valid for both longitudinal and transversal directions, that is closer than standard EN 10 149. Check the data sheet for guaranteed values.

Strenx™ CR steels have a guaranteed minimum bending radius, valid for both longitudinal and transversal directions. Check the data sheet for guaranteed values.

Class	Nominal thickness	Punch radius minimum R/t ⁽¹⁾ Bending direction ⁽²⁾ ┴ ║
A	t < 8	1.5	2.0
	8 ≤ t < 15	1.5	2.0
	15 ≤ t < 20	2.0	2.5
	t ≤ 20	2.0	2.5
B	t < 8	2.5	3.0
	8 ≤ t < 15	2.5	3.0
	15 ≤ t < 20	2.5	3.0
	t ≤20	3.0	3.5
C	t < 8	3.0	3.5
	8 ≤ t < 15	3.0	3.5
	15 ≤ t < 20	3.0	3.5
	t ≤20	3.5	4.0
D	t < 8	3.5	4.0
D	8 ≤ t < 15	4.0	4.5

1) R/t stands for punch radius (R) divided by sheet thickness (t). The guaranteed values are valid under conditions given in the brochure Bending of High Strength Steel.
2) The plate rolling direction.