SSAB Laser® 420MC Plus

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General Product Description

SSAB Laser® 420MC Plus is an advanced high yield strength cold forming steel for laser cutting. The SSAB guarantee for flatness, both before and after laser cutting, is ≤ 3 mm/m deviation.

SSAB Laser® 420MC Plus meets and exceeds the requirements of S420MC in EN 10149-2. Upon agreement, it can be delivered as dual certified. This dual certification will enable producers of steel structures, in accordance with EN 1090, to use SSAB Laser® 420MC Plus in their CE-marked final component or structure.

Dimension Range

Delivery form
Delivery form
Hot rolled sheet as rolled
Thickness
(mmin)
3.0 - 12.00.12 - 0.472
Width
(mmin)
1000 - 186039.37 - 73.23
Length
(mmin)
1000 - 1600039.37 - 629.92
Delivery form
Delivery form
Hot rolled sheet pickled and oiled
Thickness
(mmin)
2.0 - 10.00.079 - 0.394
Width
(mmin)
1000 - 186039.37 - 73.23
Length
(mmin)
1000 - 1600039.37 - 629.92

Mechanical Properties

Yield strength ReH
(min MPa)
Yield strength ReH
(min MPa)
420
Tensile strength Rm
(MPa)
490 - 620
Elongation A80 1)
(min %)
16
Elongation A5 2)
(min %)
21
Min. inner bending radius for a 90° bend 3)
(x t)
0.0

The mechanical properties are tested in the longitudinal direction.

1) A80 value applies for thicknesses < 3.00 mm.

2) A5 value applies for thicknesses ≥ 3.00 mm.

3) The bending guarantee is valid for both longitudinal and transverse direction.

Impact Properties

Min. impact energy for longitudinal testing,
Charpy V 10x10 mm test specimens
Min. impact energy for longitudinal testing,
Charpy V 10x10 mm test specimens
40 J / -60 °C
Impact testing according to EN ISO 148-1 is performed on thicknesses ≥ 6mm. The specified minimum value corresponds to a full-size specimen.

Chemical Composition (ladle analysis)

C
(max %)
C
(max %)
0.12
Si
(max %)
0.03
Mn
(max %)
1.5
P
(max %)
0.020
S
(max %)
0.015
CEV
(max )
0.28

All SSAB Laser® steels are aluminum-killed (Al ≥ 0.015%) and grain-refined. Additionally, niobium (Nb), vanadium (V), titanium (Ti) and/or boron (B) may be used as single alloying element or in any combination.

Tolerances

All SSAB Laser® products are delivered with SSAB Laser® tolerances, which means increased guarantees compared to corresponding EN standards. Detailed information is available on ssab.com.

Thickness

Hot rolled sheet: SSAB Laser® tolerances correspond to 2/3 of EN 10051 as default. Tighter tolerances are available upon request.

Width

Hot rolled sheet: -0/+20 mm for mill edge sheet; -0/+2 mm for cut edge sheet. Tighter tolerances are available upon request.

Length

Nominal length
(mm)
Nominal length
(mm)
l ≤ 4000
Tolerance
(mmin)
- 0 / + 3- 0 / + 0.1
Nominal length
(mm)
Nominal length
(mm)
4000 ˂ l ≤ 6000
Tolerance
(mmin)
- 0 / + 4- 0 / + 0.2
Nominal length
(mm)
Nominal length
(mm)
6000 ˂ l ≤ 8000
Tolerance
(mmin)
- 0 / + 5- 0 / + 0.2
Nominal length
(mm)
Nominal length
(mm)
8000 ˂ l ≤ 13000
Tolerance
(mmin)
- 0 / + 6- 0 / + 0.2
Nominal length
(mm)
Nominal length
(mm)
13000 ˂ l ≤ 16000
Tolerance
(mmin)
- 0 / + 8- 0 / + 0.3

Shape

Tolerances according to EN 10051.

Flatness

≤ 3 mm/m flatness deviation for both delivery condition and laser cut parts.

Surface Properties

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

Delivery Conditions

Thermomechanically rolled.

Surface and edge condition

SSAB Laser® MC Plus products are available in as rolled or pickled and oiled surface condition with mill edge. Cut edge sheets are available upon request.

Fabrication and Other Recommendations

All SSAB Laser® products have been optimized for laser cutting, cold forming and welding.

SSAB Laser® MC Plus products are cold forming steels not suited for heat treatments at temperatures above 580°C, since the material then may lose its guaranteed properties.

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