SSAB Boron 33

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General Product Description

SSAB Boron 33 is steel for quench- and press hardening. The degree of hardness and toughness that can be achieved after heat-treatment will provide the final products with wear- and shock resistance properties that assure longer lifetime.

Dimension Range

SSAB Boron 33 is available in thickness range 2.00-16.00 mm and widths up to 1800 mm as coils, slit coils and CTL. Lengths up to 16 meters as cut to length.

Mechanical Properties

Condition
Condition
Hot rolled
Typical yield strength
(MPa), not guaranteed
420
Typical tensile strength
(MPa), not guaranteed
620
Typical Elongation A (%),
not guaranteed
20
Typical Hardness
(HRC), not guaranteed
Typical hardness
(HBW), not guaranteed
190
Condition
Condition
Hot rolled annealed
Typical yield strength
(MPa), not guaranteed
365
Typical tensile strength
(MPa), not guaranteed
560
Typical Elongation A (%),
not guaranteed
24
Typical Hardness
(HRC), not guaranteed
Typical hardness
(HBW), not guaranteed
175
Condition
Condition
Hot rolled water quenched
Typical yield strength
(MPa), not guaranteed
1270
Typical tensile strength
(MPa), not guaranteed
1830
Typical Elongation A (%),
not guaranteed
7
Typical Hardness
(HRC), not guaranteed
54
Typical hardness
(HBW), not guaranteed
560
Condition
Condition
Hot rolled oil quenched
Typical yield strength
(MPa), not guaranteed
1030
Typical tensile strength
(MPa), not guaranteed
1500
Typical Elongation A (%),
not guaranteed
8
Typical Hardness
(HRC), not guaranteed
51
Typical hardness
(HBW), not guaranteed
500

Bending radius

Minimum bending radius of hot rolled strip products is 2 x sheet thickness. A tighter bending radius, 1 x sheet thickness, can be guaranteed for the annealed strip products.

For further information, please contact SSAB’s Tech Support.

Material Testing

A test certificate according to EN 10204/3.1 (chemical composition only) is part of the delivery.

A test certificate according to EN 10204/3.1 (with mechanical test) can be provided by special agreement only.

Chemical Composition (heat analysis)

Condition
Condition
Hot rolled strip
C
(%)
0.31 - 0.36
Si
(%)
0.10 - 0.30
Mn
(%)
1.20 - 1.40
S
(max %)
0.010
P
(max %)
0.020
Cr
(%)
0.10 - 0.40
B
(%)
0.0008 - 0.0050

The steel is grain refined.

Carbon Equivalent CEV

Condition
Condition
Typical CEV (%)
Hot rolled strip
0.59

Tolerances

SSAB Boron steels are delivered with SSAB Boron tolerances which meet and exceed the requirements in corresponding EN standards. Tighter tolerances are available on request.

Thickness

Hot rolled coils and sheet products: according to SSAB Boron thickness tolerances that exceed EN 10051 and correspond to 2/3 of EN 10051 as default value.

Length and Width

Hot rolled coils and sheets with mill edges: SSAB Boron width tolerances are corresponding to -0/+20 mm.

Hot rolled coils and sheets with cut edges: SSAB Boron width tolerances are corresponding to -0/+2 mm.

Shape

Hot rolled strip: according to EN 10051. Narrower tolerances are available on request.

Flatness

Hot rolled sheets: SSAB Boron tolerances guarantee a maximum flatness deviation of 6 mm/m in addition to the EN 10051 flatness requirements. Flatness guarantees only apply for cut to length sheets.

Surface Properties

Hot rolled strip products: According to EN 10163-2 Class A, Subclass 3.

Delivery Conditions

Hot rolled coils and sheets are delivered in as-rolled or by separate agreement annealed condition.

Surface Condition

Hot rolled strip products are available in non-pickled, pickled dry or pickled & oiled condition.

Fabrication and Other Recommendations

For information concerning fabrication, see SSAB´s brochures on www.ssab.com or consult Tech Support.

Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the products.

Contact Information

www.ssab.com/contact