SSAB Boron 27Cr
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General Product Description
SSAB Boron 27Cr 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 27Cr is available in thickness range 1.00-15.00 mm and widths up to 1800 mm as coils, slit coils and CTL. Lengths up to 16 meters as cut to length.
For detailed available thickness and width combinations, please contact SSAB.
Mechanical Properties
(MPa), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HBW), not guaranteed
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.
Material Testing
A test certificate according to EN 10204/2.2 (chemical composition) is part of the delivery.
A test certificate according to EN 10204/3.1 can be provided by special agreement only.
Chemical Composition (heat analysis)
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The steel is grain refined.
Carbon Equivalent CEV
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
Cold rolled coils and sheet products: according to EN 10 131:2006. Tighter tolerances are available on request.
Hot rolled coils and sheet products: according to SSAB Boron thickness tolerances that exceed EN 10051 and correspond to 2/3 of EN 10051:2010 as default value.
Hot rolled plate products: are delivered with tolerances that correspond to ¾ of EN 10 029:2011 as default value.
Length and Width
Cold rolled coils and sheet products: according to EN 10 131:2006. Tighter tolerances are available on request.
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.
Hot rolled plate products: width tolerance -0/+4-10mm depending on the thickness. Length tolerance -0/+15-25mm depending on length.
Shape
Hot rolled coils and sheets: SSAB Boron is delivered with shape tolerances according to EN 10051:2010. Tighter shape tolerances are available on request.
Hot rolled plate products: Shape tolerances according to EN 10029.
Flatness
Hot rolled sheets: SSAB Boron tolerances correspond to SSAB Flatness Guarantees Class B. SSAB Boron tolerances guarantee a maximum flatness deviation of 6 mm/m in addition to the EN 10051:2010 flatness requirements. Flatness guarantees only apply for cut to length sheets.
Hot rolled plate products: Maximum flatness deviation 6 mm/m.
Surface Properties
Delivery Conditions
Cold rolled coils and sheets are delivered in annealed condition.
Hot rolled coils and sheets are delivered in as-rolled or by separate agreement annealed condition.
Heavy plates are as-rolled.
Surface Condition
Cold rolled products are available with oiled or dry surface.
Hot rolled strip products are available in non-pickled, pickled dry or pickled & oiled condition.
Heavy plates are available in as rolled, shot-blasted or shot-blasted & primed condition.
Fabrication and Other Recommendations
For information concerning fabrication, see SSAB’s brochures on www.ssab.com or consult Tech Support, [email protected].
Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the product.