Hot-rolled

AHSS and UHSS steel

Tata Steel’s range of versatile hot-rolled advanced and ultra high-strength steels has been developed primarily to meet the needs of the automotive industry – increasing strength or reducing weight to help achieve optimal performance parameters.
 

Hot-rolled advanced high strength steel component
Product specification
AHSS and UHSS steel are currently available in the following grades:

EN-Product-Hot-Rolled-AHSS UHSS-HR FB590-UC TSUK

FB590 HR
Specification details for HR FB590-UC

EN-Product-Hot-rolled-All grades Shape and dimensional tolerances TSUK

Shape and dimensional tolerances

Shape and dimensional tolerances

The specified values for wide strip do not apply to the uncropped ends of the coil (‘head’ and ‘tail’). The length of these uncropped ends is calculated using the following formula:

length (in metres) = 90/nominal thickness (in mm), with a maximum of 20 metres.

If required, this part of the coil can be removed, however an additional cost may be charged for this.

 

Tolerances on thickness

Tata Steel can supply to full thickness tolerance specified in EN 10051:2010.

Tighter tolerances are available as shown below:

Product family Thickness tolerances available
(% of full EN 10051:2010 tolerance)
  100% 75% 66% 50%
Steel for forming Yes Yes Yes (see note 1)
High-strength low-alloy (HSLA) Yes Yes Yes Yes
AHSS Yes Yes Yes Yes
Structural steel Yes Yes Yes Yes
Boron manganese steel Yes Yes Yes  
Steel for gas cylinders Yes      
1 Please contact us for tolerances below 66%
Please contact us on the availability of special tolerances to meet your requirements.

 

Tolerances on thickness for hot-rolled steel with a low carbon content for cold forming
(DD11-DD14 in EN 10111:2008)
Nominal thickness Tolerances for a nominal width of
≤ 1200 > 1200 > 1500 > 1800
≤ 1500 ≤ 1800

 

≤ 2.00

± 0.13

± 0.14

± 0.16

-

> 2.00

≤ 2.50

± 0.14

± 0.16

± 0.17

± 0.19

> 2.50

≤ 3.00

± 0.15

± 0.17

± 0.18

± 0.20

> 3.00

≤ 4.00

± 0.17

± 0.18

± 0.20

± 0.20

> 4.00

≤ 5.00

± 0.18

± 0.20

± 0.21

± 0.22

> 5.00

≤ 6.00

± 0.20

± 0.21

± 0.22

± 0.23

> 6.00

≤ 8.00

± 0.22

± 0.23

± 0.23

± 0.26

> 8.00

≤ 11.00

± 0.24

± 0.25

± 0.25

± 0.28

All dimensions are mm.
Tolerances on thickness of steel grades with a specified minimum yield strength
Re ≤ 300 N/mm2 (category A)
Nominal thickness Tolerances for a nominal width of
≤ 1200 > 1200 > 1500 > 1800
≤ 1500 ≤ 1800
 

≤ 2.00

± 0.17

± 0.19

± 0.21

-

> 2.00

≤ 2.50

± 0.18

± 0.21

± 0.23

± 0.25

> 2.50

≤ 3.00

± 0.20

± 0.22

± 0.24

± 0.26

> 3.00

≤ 4.00

± 0.22

± 0.24

± 0.26

± 0.27

> 4.00

≤ 5.00

± 0.24

± 0.26

± 0.28

± 0.29

> 5.00

≤ 6.00

± 0.26

± 0.28

± 0.29

± 0.31

> 6.00

≤ 8.00

± 0.29

± 0.30

± 0.31

± 0.35

> 8.00

≤ 10.00

± 0.32

± 0.33

± 0.34

± 0.40

> 10.00

≤ 12.50

± 0.35

± 0.36

± 0.37

± 0.43

> 12.50

≤ 15.00

± 0.37

± 0.38

± 0.40

± 0.46

> 15.00

≤ 25.00

± 0.40

± 0.42

± 0.45

± 0.50

All dimensions are mm.
Tolerances on thickness of steel grades with a specified minimum yield strength
300 N/mm2 < Re ≤ 360 N/mm2 (category B)
Nominal thickness Tolerances for a nominal width of
≤ 1200 > 1200 > 1500 > 1800
≤ 1500 ≤ 1800

 

≤ 2.00

± 0.20

± 0.22

± 0.24

-

> 2.00

≤ 2.50

± 0.21

± 0.24

± 0.26

± 0.29

> 2.50

≤ 3.00

± 0.23

± 0.25

± 0.28

± 0.30

> 3.00

≤ 4.00

± 0.25

± 0.28

± 0.30

± 0.31

> 4.00

≤ 5.00

± 0.28

± 0.30

± 0.32

± 0.33

> 5.00

≤ 6.00

± 0.30

± 0.32

± 0.33

± 0.36

> 6.00

≤ 8.00

± 0.33

± 0.35

± 0.36

± 0.40

> 8.00

≤ 10.00

± 0.37

± 0.38

± 0.39

± 0.46

> 10.00

≤ 12.50

± 0.40

± 0.41

± 0.43

± 0.49

> 12.50

≤ 15.00

± 0.43

± 0.44

± 0.46

± 0.53

> 15.00

≤ 25.00

± 0.46

± 0.48

± 0.52

± 0.58

All dimensions are mm.
Tolerances on thickness of steel grades with a specified minimum yield strength
360 N/mm2 < Re ≤ 420 N/mm2 (category C)
Nominal thickness

Tolerances for a nominal width of

≤ 1200 > 1200 > 1500 > 1800
≤ 1500 ≤ 1800

 

≤ 2.00

± 0.22

± 0.25

± 0.27

-

> 2.00

≤ 2.50

± 0.23

± 0.27

± 0.30

± 0.33

> 2.50

≤ 3.00

± 0.26

± 0.29

± 0.31

± 0.34

> 3.00

≤ 4.00

± 0.29

± 0.31

± 0.34

± 0.35

> 4.00

≤ 5.00

± 0.31

± 0.34

± 0.36

± 0.38

> 5.00

≤ 6.00

± 0.34

± 0.36

± 0.38

± 0.40

> 6.00

≤ 8.00

± 0.38

± 0.39

± 0.40

± 0.46

> 8.00

≤ 10.00

± 0.42

± 0.43

± 0.44

± 0.52

> 10.00

≤ 12.50

± 0.46

± 0.47

± 0.48

± 0.56

> 12.50

≤ 15.00

± 0.48

± 0.49

± 0.52

± 0.60

> 15.00

≤ 25.00

± 0.52

± 0.55

± 0.59

± 0.65

All dimensions are mm.
Tolerances on thickness of steel grades with a specified minimum yield strength
420 N/mm2 < Re ≤ 900 N/mm2 (category D)

Nominal thickness

Tolerances for a nominal width of
≤ 1200 > 1200 > 1500 > 1800
≤ 1500 ≤ 1800

 

≤ 2.00

± 0.24

± 0.27

± 0.29

-

> 2.00

≤ 2.50

± 0.25

± 0.29

± 0.32

± 0.35

> 2.50