SSAB M53

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General Product Description

SSAB M53 is a micro-alloyed steel grade for quench- and press hardening, developed to suit several applications and segments, with agriculture as an example. Fine-grain micro-structure prevents formation of hardening cracks. The degree of hardness and toughness that can be achieved after heat-treatment will provide end products with a wear- and shock resistance ratio that ensures longer lifetime. Economical and environmental friendly alternative for carburized and triple layered materials.

Dimension Range

Delivery form
Delivery form
Hot rolled sheet
Thickness
(mmin)
4.0 - 8.0 1)0.16 - 0.31 1)
Width
(mmin)
1000 - 180039.37 - 70.87
Max. length (mmin)
13000511.81

1) Please check thickness/width combinations available.

Mechanical Properties

Product type
Product type
As rolled
Typical yield strength
(MPa), not guaranteed
460 - 700
Typical tensile strength Rm (MPa), not guaranteed
700 - 1000
Typical Elongation A (%),
not guaranteed
14
Typical Hardness
(HRC), not guaranteed
—
Typical hardness
(HBW), not guaranteed
230
Product type
Product type
Polymer quenched
Typical yield strength
(MPa), not guaranteed
—
Typical tensile strength Rm (MPa), not guaranteed
—
Typical Elongation A (%),
not guaranteed
—
Typical Hardness
(HRC), not guaranteed
62
Typical hardness
(HBW), not guaranteed
—
Product type
Product type
Polymer quenched & tempered (175° C)
Typical yield strength
(MPa), not guaranteed
—
Typical tensile strength Rm (MPa), not guaranteed
—
Typical Elongation A (%),
not guaranteed
—
Typical Hardness
(HRC), not guaranteed
59
Typical hardness
(HBW), not guaranteed
—
Product type
Product type
Polymer quenched & tempered (425° C)
Typical yield strength
(MPa), not guaranteed
1400
Typical tensile strength Rm (MPa), not guaranteed
1500
Typical Elongation A (%),
not guaranteed
8.5
Typical Hardness
(HRC), not guaranteed
47
Typical hardness
(HBW), not guaranteed
451
Product type
Product type
Polymer quenched & tempered (550° C)
Typical yield strength
(MPa), not guaranteed
1180
Typical tensile strength Rm (MPa), not guaranteed
1270
Typical Elongation A (%),
not guaranteed
11.5
Typical Hardness
(HRC), not guaranteed
42
Typical hardness
(HBW), not guaranteed
388
Product type
Product type
Oil quenched
Typical yield strength
(MPa), not guaranteed
—
Typical tensile strength Rm (MPa), not guaranteed
—
Typical Elongation A (%),
not guaranteed
—
Typical Hardness
(HRC), not guaranteed
60
Typical hardness
(HBW), not guaranteed
—
Product type
Product type
Oil quenched and tempered (175° C)
Typical yield strength
(MPa), not guaranteed
—
Typical tensile strength Rm (MPa), not guaranteed
—
Typical Elongation A (%),
not guaranteed
—
Typical Hardness
(HRC), not guaranteed
59
Typical hardness
(HBW), not guaranteed
—
Product type
Product type
Oil quenched and tempered (425° C)
Typical yield strength
(MPa), not guaranteed
1440
Typical tensile strength Rm (MPa), not guaranteed
1550
Typical Elongation A (%),
not guaranteed
8.5
Typical Hardness
(HRC), not guaranteed
48
Typical hardness
(HBW), not guaranteed
461
Product type
Product type
Oil quenched and tempered (550° C)
Typical yield strength
(MPa), not guaranteed
1210
Typical tensile strength Rm (MPa), not guaranteed
1290
Typical Elongation A (%),
not guaranteed
11.5
Typical Hardness
(HRC), not guaranteed
43
Typical hardness
(HBW), not guaranteed
402

Examples of cooling media used for evaluating typical mechanical properties:

PAG polymer 10%, no agitation, T ≤ 30 °C.

Fast cooling rate quenching oil, T ≤ 35 °C.

Bending radius

For further information, please consult your local SSAB contact person or contact SSAB´s Technical Customer Service.

Material Testing

A material test certificate Type 2.2 according to EN 10204 (chemical composition) is part of the delivery.

A material test certificate according Type 3.1 according to EN 10204 (mechanical properties) can be provided by special agreement.

Impact Properties (typical values)

Product condition
Product condition
As rolled
Longitudinal test, typical impact energy,
Charpy V 10x10 mm test specimen 1)
—
Product condition
Product condition
Polymer quenched
Longitudinal test, typical impact energy,
Charpy V 10x10 mm test specimen 1)
9 J / 20.0 °C
Product condition
Product condition
Polymer quenched & tempered (175° C)
Longitudinal test, typical impact energy,
Charpy V 10x10 mm test specimen 1)
18 J / 20.0 °C
Product condition
Product condition
Polymer quenched & tempered (425° C)
Longitudinal test, typical impact energy,
Charpy V 10x10 mm test specimen 1)
26 J / 20.0 °C
Product condition
Product condition
Polymer quenched & tempered (550° C)
Longitudinal test, typical impact energy,
Charpy V 10x10 mm test specimen 1)
41 J / 20.0 °C
Product condition
Product condition
Oil quenched
Longitudinal test, typical impact energy,
Charpy V 10x10 mm test specimen 1)
9 J / 20.0 °C
Product condition
Product condition
Oil quenched and tempered (175° C)
Longitudinal test, typical impact energy,
Charpy V 10x10 mm test specimen 1)
18 J / 20.0 °C
Product condition
Product condition
Oil quenched and tempered (425° C)
Longitudinal test, typical impact energy,
Charpy V 10x10 mm test specimen 1)
24 J / 20.0 °C
Product condition
Product condition
Oil quenched and tempered (550° C)
Longitudinal test, typical impact energy,
Charpy V 10x10 mm test specimen 1)
40 J / 20.0 °C

1) For thicknesses between 6 - 11.9 mm, sub-size Charpy V-specimens are used. The specified typical value is then proportrional to the cross-sectional area of the specimen compared to a full-size specimen (10 x 10 mm).

Chemical Composition (ladle analysis)

Delivery form
Delivery form
Hot rolled strip
C
(%)
0.49 - 0.57
Si
(%)
0.10 - 0.35
Mn
(%)
0.15 - 0.50
S
(max %)
0.010
P
(max %)
0.020
Cr
(max %)
0.60

SSAB M53 is micro-alloyed with Nb, Ti and V.

Carbon Equivalent CET(CEV)

Delivery form
Delivery form
Typical CET (%)
Hot rolled strip
0.61
CET and CEV formula

Tolerances

SSAB M53 is delivered with SSAB tolerances, which meet and exceed the requirements in EN 10051. Tighter tolerances are available upon request

Thickness

2/3 of EN 10051.

Width

Hot rolled sheet: -0/+20mm.

Length

-0/+20mm (only available for cut to length sheets).

Shape

Tolerances according to EN 10051.

Flatness

≤ 6 mm/1 m ruler deviation (only valid for cut to length sheets).

Surface Properties

According to EN 10163-2 Class A, Subclass 3.

Delivery Conditions

Hot rolled sheet are delivered in as rolled (+AR) condition.

Surface Condition

Hot rolled strip products are available in non-pickled.

Pickled dry or pickled & oiled condition available upon request.

Fabrication and Other Recommendations

Cutting is recommended by laser or plasma, flame cutting is not advised.

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