Industry

Steel coils for laser cutting applications (CLAS) are hot rolled coils produced in specific grades, developed for applications using computer-controlled thermal and mechanical cutting equipment (laser, plasma etc).

Two ranges are available: structural and high yield strength steels for cold forming.

The structural steel range begins with S200 CLAS AM FCE grade, which combines the drawability of DD12 AM FCE (EN 10111:2008) and a narrow tolerance range for the mechanical properties. All the other grades are improved structural steels in compliance with EN 10025-2:2004.
The range of high yield strength steels for cold forming comprises improved versions of Amstrong^® 315MC, Amstrong^® 355MC, Amstrong^® 420MC and Amstrong^® 500MC, as per EN 10149-2:2013.

All these grades are designed to:

Give improved productivity, quality and consistency with laser cutting
Meet the most stringent flatness requirements after cutting

Steel coils supplied for laser cutting are virtually free of internal stresses and can therefore be used to produce sheets with guaranteed flatness before, during and after cutting, provided that appropriate decoiling tools and procedures are used. Sheets produced on cutting-to-length lines certified by ArcelorMittal may have guaranteed flatness before, during and after cutting (see data sheet A42).

For thicknesses below 16 mm, steels for laser cutting offer significantly higher laser cutting speeds than those obtained with standard grades and/or conventional cutting processes (plasma, oxy-cutting).

These steels can be hot dip galvanised.

These grades are particularly suitable for manufacturing complex parts or for improving productivity when parts are to be produced on a small scale.

Since 1 July 2013, the Construction Products Regulation (Regulation (EU) No. 305/2011 – CPR) has required that CE marking be affixed to all products delivered in accordance with a harmonised standard (e.g. EN 10025). This CE marking guarantees, for the uses defined in the standard, the properties described in the declaration of performance submitted by the manufacturer.

The S235 CLAS AM FCE, S275 CLAS AM FCE and S355 CLAS AM FCE steels in this data sheet comply with this Regulation.

Laser cutting speed largely depends on surface homogeneity and reflectivity. To improve productivity for our clients, ArcelorMittal has developed several surface finishes compatible with laser cutting:

Mill finish:

Surface appearance: only A (unexposed) is available
Surface cleanliness: on request, Amstrong^® grades can be delivered with an improved surface finish on black hot rolled product. Contact our commercial teams for further information.

Pickled:
ArcelorMittal's hydrochloric acid pickling process produces a clean, more favourable surface for laser cutting than that produced by sulphuric acid pickling.

Surface appearance: A (unexposed) and B (exposed) are available
Protection:

Protective oil may be applied
Easyfilm^® HPE is available. It offers more uniform dry surface protection than oil and favourably reduces the reflectivity of the steel. Moreover, since no oil is used, workplace floors are cleaner and safer.
For more information, see data sheet A80.

Due to their low carbon equivalent value (see table of chemical properties), ArcelorMittal's steel coils for laser cutting applications offer excellent weldability.

High yield strength steels for cold forming

Full table

	EN 10149-2:2013	Old brand names
Amstrong^® 320MC CLAS AM FCE	S315MC
Amstrong^® 360MC CLAS AM FCE	S355MC	Sollaser^® 380/Sidlaser^® 380/Superlaser 355MC
Amstrong^® 420MC CLAS AM FCE	S420MC	Sollaser^® 440/Sidlaser^® 420
Amstrong^® 500MC CLAS AM FCE	S500MC

Amstrong^® 320MC CLAS AM FCE

	Amstrong^® 320MC CLAS AM FCE
EN 10025-2:2004
EN 10149-2:2013	S315MC
EN 10111:2008
Old brand names

Amstrong^® 360MC CLAS AM FCE

	Amstrong^® 360MC CLAS AM FCE
EN 10025-2:2004
EN 10149-2:2013	S355MC
EN 10111:2008
Old brand names	Sollaser^® 380/Sidlaser^® 380/Superlaser 355MC

Amstrong^® 420MC CLAS AM FCE

	Amstrong^® 420MC CLAS AM FCE
EN 10025-2:2004
EN 10149-2:2013	S420MC
EN 10111:2008
Old brand names	Sollaser^® 440/Sidlaser^® 420

Amstrong^® 500MC CLAS AM FCE

	Amstrong^® 500MC CLAS AM FCE
EN 10025-2:2004
EN 10149-2:2013	S500MC
EN 10111:2008
Old brand names

Prev grade Next grade

Structural steels

Full table

	EN 10025-2:2004	EN 10111:2008	Old brand names
S200 CLAS AM FCE		DD12	Sollaser^® 220/Sidlaser^® 220/Superlaser DD12
S240 CLAS AM FCE	S235J0		Sollaser^® 260/Sidlaser^® 240/Superlaser 235
S275 CLAS AM FCE	S275J0
S355 CLAS AM FCE	S355J0

S200 CLAS AM FCE

	S200 CLAS AM FCE
EN 10025-2:2004
EN 10149-2:2013
EN 10111:2008	DD12
Old brand names	Sollaser^® 220/Sidlaser^® 220/Superlaser DD12

S240 CLAS AM FCE

	S240 CLAS AM FCE
EN 10025-2:2004	S235J0
EN 10149-2:2013
EN 10111:2008
Old brand names	Sollaser^® 260/Sidlaser^® 240/Superlaser 235

S275 CLAS AM FCE

	S275 CLAS AM FCE
EN 10025-2:2004	S275J0
EN 10149-2:2013
EN 10111:2008
Old brand names

S355 CLAS AM FCE

	S355 CLAS AM FCE
EN 10025-2:2004	S355J0
EN 10149-2:2013
EN 10111:2008
Old brand names

Prev grade Next grade

Thickness tolerance
The consistent thickness and reduced internal stresses of these coils make it possible to operate laser cutting machines continuously by lowering the breakdown risk and the frequency of laser cutting head breakage. This allows the use of fully automated loading and discharging systems.

The following thickness tolerances (EN 10051:2010) are available: 3/4, 1/2 and 1/3 for both mill finish and pickled steels. Contact our commercial teams for stricter tolerances.

Amstrong^® grades are delivered with a thickness tolerance of 1/2 EN if a tighter tolerance is not requested.

Flatness tolerance
Since the degree of sheet flatness obtained mainly depends on the uncoiling and levelling process used during laser cutting, we cannot offer any guarantee for coil products supplied.

Dimension tables
The following tables show the dimensions available for ArcelorMittal's coils:

Mill finish

Full table

Thickness (mm)	Min width	Amstrong^® 320MC CLAS AM FCE	Amstrong^® 360MC CLAS AM FCE	Amstrong^® 420MC CLAS AM FCE	Amstrong^® 500MC CLAS AM FCE	S200 CLAS AM FCE	S240 CLAS AM FCE	S275 CLAS AM FCE	S355 CLAS AM FCE
Thickness (mm)	Min width	Max width	Max width	Max width	Max width	Max width	Max width	Max width	Max width
2.00 ≤ th < 2.50	700	1400	1400	1400	-	1630	1630	1630	1440
2.50 ≤ th < 3.00		1590	1500	1500		2000	1850	1830	1540
3.00 ≤ th < 3.50		1700	1650	1650		2000	2030	2030	1800
3.50 ≤ th < 4.00		1790	1730	1690		2130	2130	2130	2130
4.00 ≤ th < 4.50		1880	1880	1840	*
4.50 ≤ th < 5.00		2030	2030	1840
5.00 ≤ th < 10.00		2130	2130	2130
10.00 ≤ th < 11.00		2130	2130	2030	-				2030
11.00 ≤ th < 13.00		1930	1930	2030					2030
13.00 ≤ th < 13.50				1930					1930
13.50 ≤ th < 14.00				-
14.00 ≤ th < 15.00		-
15.00 ≤ th < 15.50								-	-
15.50 ≤ th < 16.00								-	-

* Amstrong^® 500MC CLAS AM FCE: only after prior agreement

Amstrong^® 320MC CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	700	1400
2.50 ≤ th < 3.00		1590
3.00 ≤ th < 3.50		1700
3.50 ≤ th < 4.00		1790
4.00 ≤ th < 4.50		1880
4.50 ≤ th < 5.00		2030
5.00 ≤ th < 10.00		2130
10.00 ≤ th < 11.00		2130
11.00 ≤ th < 13.00		1930
13.00 ≤ th < 13.50
13.50 ≤ th < 14.00
14.00 ≤ th < 15.00		-
15.00 ≤ th < 15.50
15.50 ≤ th < 16.00

Amstrong^® 360MC CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	700	1400
2.50 ≤ th < 3.00		1500
3.00 ≤ th < 3.50		1650
3.50 ≤ th < 4.00		1730
4.00 ≤ th < 4.50		1880
4.50 ≤ th < 5.00		2030
5.00 ≤ th < 10.00		2130
10.00 ≤ th < 11.00		2130
11.00 ≤ th < 13.00		1930
13.00 ≤ th < 13.50
13.50 ≤ th < 14.00
14.00 ≤ th < 15.00
15.00 ≤ th < 15.50
15.50 ≤ th < 16.00

Amstrong^® 420MC CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	700	1400
2.50 ≤ th < 3.00		1500
3.00 ≤ th < 3.50		1650
3.50 ≤ th < 4.00		1690
4.00 ≤ th < 4.50		1840
4.50 ≤ th < 5.00		1840
5.00 ≤ th < 10.00		2130
10.00 ≤ th < 11.00		2030
11.00 ≤ th < 13.00		2030
13.00 ≤ th < 13.50		1930
13.50 ≤ th < 14.00		-
14.00 ≤ th < 15.00
15.00 ≤ th < 15.50
15.50 ≤ th < 16.00

Amstrong^® 500MC CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	700	-
2.50 ≤ th < 3.00
3.00 ≤ th < 3.50
3.50 ≤ th < 4.00
4.00 ≤ th < 4.50		*
4.50 ≤ th < 5.00
5.00 ≤ th < 10.00
10.00 ≤ th < 11.00		-
11.00 ≤ th < 13.00
13.00 ≤ th < 13.50
13.50 ≤ th < 14.00
14.00 ≤ th < 15.00
15.00 ≤ th < 15.50
15.50 ≤ th < 16.00

S200 CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	700	1630
2.50 ≤ th < 3.00		2000
3.00 ≤ th < 3.50		2000
3.50 ≤ th < 4.00		2130
4.00 ≤ th < 4.50
4.50 ≤ th < 5.00
5.00 ≤ th < 10.00
10.00 ≤ th < 11.00
11.00 ≤ th < 13.00
13.00 ≤ th < 13.50
13.50 ≤ th < 14.00
14.00 ≤ th < 15.00
15.00 ≤ th < 15.50
15.50 ≤ th < 16.00

S240 CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	700	1630
2.50 ≤ th < 3.00		1850
3.00 ≤ th < 3.50		2030
3.50 ≤ th < 4.00		2130
4.00 ≤ th < 4.50
4.50 ≤ th < 5.00
5.00 ≤ th < 10.00
10.00 ≤ th < 11.00
11.00 ≤ th < 13.00
13.00 ≤ th < 13.50
13.50 ≤ th < 14.00
14.00 ≤ th < 15.00
15.00 ≤ th < 15.50
15.50 ≤ th < 16.00

S275 CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	700	1630
2.50 ≤ th < 3.00		1830
3.00 ≤ th < 3.50		2030
3.50 ≤ th < 4.00		2130
4.00 ≤ th < 4.50
4.50 ≤ th < 5.00
5.00 ≤ th < 10.00
10.00 ≤ th < 11.00
11.00 ≤ th < 13.00
13.00 ≤ th < 13.50
13.50 ≤ th < 14.00
14.00 ≤ th < 15.00
15.00 ≤ th < 15.50		-
15.50 ≤ th < 16.00		-

S355 CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	700	1440
2.50 ≤ th < 3.00		1540
3.00 ≤ th < 3.50		1800
3.50 ≤ th < 4.00		2130
4.00 ≤ th < 4.50
4.50 ≤ th < 5.00
5.00 ≤ th < 10.00
10.00 ≤ th < 11.00		2030
11.00 ≤ th < 13.00		2030
13.00 ≤ th < 13.50		1930
13.50 ≤ th < 14.00
14.00 ≤ th < 15.00
15.00 ≤ th < 15.50		-
15.50 ≤ th < 16.00		-

Prev grade Next grade

* Amstrong^® 500MC CLAS AM FCE: only after prior agreement

Pickled coils

Full table

Thickness (mm)	Min width	Amstrong^® 320MC CLAS AM FCE	Amstrong^® 360MC CLAS AM FCE	Amstrong^® 420MC CLAS AM FCE	Amstrong^® 500MC CLAS AM FCE	S200 CLAS AM FCE	S240 CLAS AM FCE, S275 CLAS AM FCE	S355 CLAS AM FCE
Thickness (mm)	Min width	Max width	Max width	Max width	Max width	Max width	Max width	Max width
2.00 ≤ th < 2.50	600	1420	1400	1400	-	1630	1630	1440
2.50 ≤ th < 3.00	700	1590	1500	1500		2000	1850	1540
3.00 ≤ th < 4.00		1700	1600	1550		2130	2000	1780
4.00 ≤ th < 5.00		1880	1880	1830	(1540)		2130	2130
5.00 ≤ th < 6.00		2130	2130	2130				2130
6.00 ≤ th < 7.15		2130	2130	1520				1550
7.15 ≤ th < 8.15		1520	1520		-	1550	1550	1520
8.15 ≤ th < 12.00						1520	1520
12.00 ≤ th < 13.00						-	1520

* Amstrong^® 500MC CLAS AM FCE: only after prior agreement

Amstrong^® 320MC CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	600	1420
2.50 ≤ th < 3.00	700	1590
3.00 ≤ th < 4.00		1700
4.00 ≤ th < 5.00		1880
5.00 ≤ th < 6.00		2130
6.00 ≤ th < 7.15		2130
7.15 ≤ th < 8.15		1520
8.15 ≤ th < 12.00
12.00 ≤ th < 13.00

Amstrong^® 360MC CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	600	1400
2.50 ≤ th < 3.00	700	1500
3.00 ≤ th < 4.00		1600
4.00 ≤ th < 5.00		1880
5.00 ≤ th < 6.00		2130
6.00 ≤ th < 7.15		2130
7.15 ≤ th < 8.15		1520
8.15 ≤ th < 12.00
12.00 ≤ th < 13.00

Amstrong^® 420MC CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	600	1400
2.50 ≤ th < 3.00	700	1500
3.00 ≤ th < 4.00		1550
4.00 ≤ th < 5.00		1830
5.00 ≤ th < 6.00		2130
6.00 ≤ th < 7.15		1520
7.15 ≤ th < 8.15
8.15 ≤ th < 12.00
12.00 ≤ th < 13.00

Amstrong^® 500MC CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	600	-
2.50 ≤ th < 3.00	700
3.00 ≤ th < 4.00
4.00 ≤ th < 5.00		(1540)
5.00 ≤ th < 6.00
6.00 ≤ th < 7.15
7.15 ≤ th < 8.15		-
8.15 ≤ th < 12.00
12.00 ≤ th < 13.00

S200 CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	600	1630
2.50 ≤ th < 3.00	700	2000
3.00 ≤ th < 4.00		2130
4.00 ≤ th < 5.00
5.00 ≤ th < 6.00
6.00 ≤ th < 7.15
7.15 ≤ th < 8.15		1550
8.15 ≤ th < 12.00		1520
12.00 ≤ th < 13.00		-

S240 CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	600	1630
2.50 ≤ th < 3.00	700	1850
3.00 ≤ th < 4.00		2000
4.00 ≤ th < 5.00		2130
5.00 ≤ th < 6.00
6.00 ≤ th < 7.15
7.15 ≤ th < 8.15		1550
8.15 ≤ th < 12.00		1520
12.00 ≤ th < 13.00		1520

S275 CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	600	1630
2.50 ≤ th < 3.00	700	1850
3.00 ≤ th < 4.00		2000
4.00 ≤ th < 5.00		2130
5.00 ≤ th < 6.00
6.00 ≤ th < 7.15
7.15 ≤ th < 8.15		1550
8.15 ≤ th < 12.00		1520
12.00 ≤ th < 13.00		1520

S355 CLAS AM FCE

Thickness (mm)	Min width	Max width
2.00 ≤ th < 2.50	600	1440
2.50 ≤ th < 3.00	700	1540
3.00 ≤ th < 4.00		1780
4.00 ≤ th < 5.00		2130
5.00 ≤ th < 6.00		2130
6.00 ≤ th < 7.15		1550
7.15 ≤ th < 8.15		1520
8.15 ≤ th < 12.00
12.00 ≤ th < 13.00

Prev grade Next grade

* Amstrong^® 500MC CLAS AM FCE: only after prior agreement

High yield strength steels for cold forming

Full table

	Direction	Thickness (mm)	R_e (MPa)	R_m (MPa)	A₈₀ (%)	A 5.65√S_o (%)	Bending ratio (th)	KV -20°C (J)
Amstrong^® 320MC CLAS AM FCE	L	2 - 3	320 - 420	420 - 500	≥ 22	≥ 27	-	-
		3 - 6			-			-
		6 - 14			-			≥ 40
	T	2 - 3	345 - 450	435 - 540	≥ 21	≥ 26	≥ 0	-
	T	3 - 14	345 - 450	435 - 540	-	≥ 26	≥ 0	-
Amstrong^® 360MC CLAS AM FCE	L	2 - 3	360 - 440	450 - 530	≥ 21	-	-	-
		3 - 6			-	≥ 26		-
		6 - 16			-	≥ 26		≥ 40
	T	2 - 3	380 - 460	460 - 540	≥ 20	-	≥ 0	-
	T	3 - 16	380 - 460	460 - 540	-	≥ 25	≥ 0	-
Amstrong^® 420MC CLAS AM FCE	L	2 - 3	420 - 500	490 - 590	≥ 18	-	-	-
		3 - 6			-	≥ 23		-
		6 - 14			-	≥ 23		≥ 40
	T	2 - 3	440 - 520	500 - 600	≥ 17	-	≥ 0.5	-
	T	3 - 14	440 - 520	500 - 600	-	≥ 22	≥ 0.5	-
Amstrong^® 500MC CLAS AM FCE	L	< 2	500 - 600	570 - 700	≥ 15	-	-	-
		2 - 3			≥ 16	-
		3 - 6			-	≥ 19
		6 - 10			-	≥ 19		≥ 40
	T	< 2	530 - 630	570 - 700	≥ 14	-	≥ 0.6	-
		2 - 3			≥ 15	-
		3 - 6			-	≥ 18
		6 - 10			-	≥ 18	≥ 1

Values in bold: tighter than the standard

Bending ratio is as defined in EN 10149-2:2013: “Bending at 180° minimum mandrel diameter”.

Amstrong^® 320MC CLAS AM FCE

	Direction	Thickness (mm)	Amstrong^® 320MC CLAS AM FCE
R_e (MPa)	L	2 - 14	320 - 420
R_e (MPa)	T	2 - 14	345 - 450
R_m (MPa)	L	2 - 14	420 - 500
R_m (MPa)	T	2 - 14	435 - 540
A₈₀ (%)	L	2 - 3	≥ 22
A₈₀ (%)	T	2 - 3	≥ 21
A 5.65√S_o (%)	L	2 - 14	≥ 27
A 5.65√S_o (%)	T	2 - 14	≥ 26
Bending ratio (th)	T	2 - 14	≥ 0
KV -20°C (J)	L	6 - 14	≥ 40

Amstrong^® 360MC CLAS AM FCE

	Direction	Thickness (mm)	Amstrong^® 360MC CLAS AM FCE
R_e (MPa)	L	2 - 16	360 - 440
R_e (MPa)	T	2 - 16	380 - 460
R_m (MPa)	L	2 - 16	450 - 530
R_m (MPa)	T	2 - 16	460 - 540
A₈₀ (%)	L	2 - 3	≥ 21
A₈₀ (%)	T	2 - 3	≥ 20
A 5.65√S_o (%)	L	3 - 16	≥ 26
A 5.65√S_o (%)	T	3 - 16	≥ 25
Bending ratio (th)	T	2 - 16	≥ 0
KV -20°C (J)	L	6 - 16	≥ 40

Amstrong^® 420MC CLAS AM FCE

	Direction	Thickness (mm)	Amstrong^® 420MC CLAS AM FCE
R_e (MPa)	L	2 - 14	420 - 500
R_e (MPa)	T	2 - 14	440 - 520
R_m (MPa)	L	2 - 14	490 - 590
R_m (MPa)	T	2 - 14	500 - 600
A₈₀ (%)	L	2 - 3	≥ 18
A₈₀ (%)	T	2 - 3	≥ 17
A 5.65√S_o (%)	L	3 - 14	≥ 23
A 5.65√S_o (%)	T	3 - 14	≥ 22
Bending ratio (th)	T	2 - 14	≥ 0.5
KV -20°C (J)	L	6 - 14	≥ 40

Amstrong^® 500MC CLAS AM FCE

	Direction	Thickness (mm)	Amstrong^® 500MC CLAS AM FCE
R_e (MPa)	L	< 10	500 - 600
R_e (MPa)	T	< 10	530 - 630
R_m (MPa)	L	< 10	570 - 700
R_m (MPa)	T	< 10	570 - 700
A₈₀ (%)	L	< 2	≥ 15
	L	2 - 3	≥ 16
	T	< 2	≥ 14
	T	2 - 3	≥ 15
A 5.65√S_o (%)	L	3 - 10	≥ 19
A 5.65√S_o (%)	T	3 - 10	≥ 18
Bending ratio (th)	T	< 6	≥ 0.6
Bending ratio (th)	T	6 - 10	≥ 1
KV -20°C (J)	L	6 - 10	≥ 40

Values in bold: tighter than the standard

Prev grade Next grade

Values in bold: tighter than the standard

Bending ratio is as defined in EN 10149-2:2013: “Bending at 180° minimum mandrel diameter”.

Structural steels

Full table

	Direction	Thickness (mm)	R_e (MPa)	R_m (MPa)	A₈₀ (%)	A 5.65√S_o (%)	Bending ratio (th)	KV 0°C (J)
S200 CLAS AM FCE	T	2 - 3	200 - 310	320 - 410	≥ 27	-	-	-
S200 CLAS AM FCE	T	3 - 16	200 - 300	320 - 400	-	≥ 32	-	-
S240 CLAS AM FCE	L	6 - 16	-	-	-	-	-	≥ 27
	T	2 - 3	240 - 320	360 - 440	≥ 22	-	-	-
	T	3 - 16	-	-	-	≥ 28	-	-
S275 CLAS AM FCE	L	6 - 16	-	-	-	-	-	≥ 27
	T	2 - 2.5	≥ 275	430 - 580	< 16	-	-	-
		2.5 - 3		430 - 580	< 17	-
		3 - 16		410 - 560	-	< 21
S355 CLAS AM FCE	L	6 - 16	-	-	-	-	-	≥ 27
	T	2 - 2.5	≥ 355	510 - 610	≥ 15	-	≥ 1	-
		2.5 - 3		510 - 610	≥ 16	-
		3 - 16		490 - 590	-	≥ 20

Bending ratio: the values of the bending radius are applicable for bend angles ≤ 90º, as proposed in EN 10025-2:2004.

S200 CLAS AM FCE

	Direction	Thickness (mm)	S200 CLAS AM FCE
R_e (MPa)	T	2 - 3	200 - 310
R_e (MPa)	T	3 - 16	200 - 300
R_m (MPa)	T	2 - 3	320 - 410
R_m (MPa)	T	3 - 16	320 - 400
A₈₀ (%)	T	2 - 3	≥ 27
A 5.65√S_o (%)	T	3 - 16	≥ 32

S240 CLAS AM FCE

	Direction	Thickness (mm)	S240 CLAS AM FCE
R_e (MPa)	T	2 - 3	240 - 320
R_m (MPa)	T	2 - 3	360 - 440
A₈₀ (%)	T	2 - 3	≥ 22
A 5.65√S_o (%)	T	3 - 16	≥ 28
KV 0°C (J)	L	6 - 16	≥ 27

S275 CLAS AM FCE

	Direction	Thickness (mm)	S275 CLAS AM FCE
R_e (MPa)	T	2 - 16	≥ 275
R_m (MPa)	T	2 - 3	430 - 580
R_m (MPa)	T	3 - 16	410 - 560
A₈₀ (%)	T	2 - 2.5	< 16
A₈₀ (%)	T	2.5 - 3	< 17
A 5.65√S_o (%)	T	3 - 16	< 21
KV 0°C (J)	L	6 - 16	≥ 27

S355 CLAS AM FCE

	Direction	Thickness (mm)	S355 CLAS AM FCE
R_e (MPa)	T	2 - 16	≥ 355
R_m (MPa)	T	2 - 3	510 - 610
R_m (MPa)	T	3 - 16	490 - 590
A₈₀ (%)	T	2 - 2.5	≥ 15
A₈₀ (%)	T	2.5 - 3	≥ 16
A 5.65√S_o (%)	T	3 - 16	≥ 20
Bending ratio (th)	T	2 - 16	≥ 1
KV 0°C (J)	L	6 - 16	≥ 27

Prev grade Next grade

Bending ratio: the values of the bending radius are applicable for bend angles ≤ 90º, as proposed in EN 10025-2:2004.

High yield strength steels for cold forming

Full table

	C (%)	Mn (%)	P (%)	S (%)	Si (%)	Al (%)	Cu (%)	Cr (%)	Ni (%)	Nb (%)	C_eq (%)	Galvanisation
Amstrong^® 320MC CLAS AM FCE	≤ 0.100	≤ 1.30	≤ 0.025	≤ 0.012	≤ 0.03	≥ 0.020	≤ 0.25	≤ 0.15	≤ 0.25	≤ 0.040	≤ 0.36	Class 1
Amstrong^® 360MC CLAS AM FCE	≤ 0.100	≤ 1.40	≤ 0.020	≤ 0.012	≤ 0.03	≥ 0.020	≤ 0.25	≤ 0.15	≤ 0.25	≤ 0.065	≤ 0.36	Class 1
Amstrong^® 420MC CLAS AM FCE	≤ 0.110	≤ 1.50	≤ 0.020	≤ 0.012	≤ 0.03	≥ 0.020	≤ 0.25	≤ 0.15	≤ 0.25	≤ 0.065	≤ 0.38	Class 1
Amstrong^® 500MC CLAS AM FCE	≤ 0.120	≤ 1.70	≤ 0.020	≤ 0.012	≤ 0.03	≥ 0.020	≤ 0.25	≤ 0.15	≤ 0.25	≤ 0.090	≤ 0.42	Class 1

Amstrong^® 320MC CLAS AM FCE

	Amstrong^® 320MC CLAS AM FCE
C (%)	≤ 0.100
Mn (%)	≤ 1.30
P (%)	≤ 0.025
S (%)	≤ 0.012
Si (%)	≤ 0.03
Al (%)	≥ 0.020
Cu (%)	≤ 0.25
Cr (%)	≤ 0.15
Ni (%)	≤ 0.25
Nb (%)	≤ 0.040
C_eq (%)	≤ 0.36
Galvanisation	Class 1

Amstrong^® 360MC CLAS AM FCE

	Amstrong^® 360MC CLAS AM FCE
C (%)	≤ 0.100
Mn (%)	≤ 1.40
P (%)	≤ 0.020
S (%)	≤ 0.012
Si (%)	≤ 0.03
Al (%)	≥ 0.020
Cu (%)	≤ 0.25
Cr (%)	≤ 0.15
Ni (%)	≤ 0.25
Nb (%)	≤ 0.065
C_eq (%)	≤ 0.36
Galvanisation	Class 1

Amstrong^® 420MC CLAS AM FCE

	Amstrong^® 420MC CLAS AM FCE
C (%)	≤ 0.110
Mn (%)	≤ 1.50
P (%)	≤ 0.020
S (%)	≤ 0.012
Si (%)	≤ 0.03
Al (%)	≥ 0.020
Cu (%)	≤ 0.25
Cr (%)	≤ 0.15
Ni (%)	≤ 0.25
Nb (%)	≤ 0.065
C_eq (%)	≤ 0.38
Galvanisation	Class 1

Amstrong^® 500MC CLAS AM FCE

	Amstrong^® 500MC CLAS AM FCE
C (%)	≤ 0.120
Mn (%)	≤ 1.70
P (%)	≤ 0.020
S (%)	≤ 0.012
Si (%)	≤ 0.03
Al (%)	≥ 0.020
Cu (%)	≤ 0.25
Cr (%)	≤ 0.15
Ni (%)	≤ 0.25
Nb (%)	≤ 0.090
C_eq (%)	≤ 0.42
Galvanisation	Class 1

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Structural steels

Full table

	C (%)	Mn (%)	P (%)	S (%)	Si (%)	Al (%)	Cu (%)	Cr (%)	Ni (%)	Nb (%)	C_eq (%)	Galvanisation
S200 CLAS AM FCE	≤ 0.080	≤ 0.45	≤ 0.025	≤ 0.025	≤ 0.03	≥ 0.020	-	-	-	-	≤ 0.16	Class 1
S240 CLAS AM FCE	≤ 0.170	≤ 0.80	≤ 0.025	≤ 0.025	≤ 0.03	≥ 0.020	≤ 0.25	-	-	-	≤ 0.35	Class 1
S275 CLAS AM FCE	≤ 0.180	≤ 1.30	≤ 0.025	≤ 0.025	≤ 0.03	≥ 0.020	≤ 0.25	≤ 0.15	≤ 0.25	-	≤ 0.40	Class 1
S355 CLAS AM FCE	≤ 0.200	≤ 1.60	≤ 0.025	≤ 0.012	≤ 0.03	≥ 0.020	≤ 0.25	≤ 0.15	≤ 0.25	≤ 0.060	≤ 0.45	Class 1

S200 CLAS AM FCE

	S200 CLAS AM FCE
C (%)	≤ 0.080
Mn (%)	≤ 0.45
P (%)	≤ 0.025
S (%)	≤ 0.025
Si (%)	≤ 0.03
Al (%)	≥ 0.020
Cu (%)	-
Cr (%)	-
Ni (%)	-
Nb (%)	-
C_eq (%)	≤ 0.16
Galvanisation	Class 1

S240 CLAS AM FCE

	S240 CLAS AM FCE
C (%)	≤ 0.170
Mn (%)	≤ 0.80
P (%)	≤ 0.025
S (%)	≤ 0.025
Si (%)	≤ 0.03
Al (%)	≥ 0.020
Cu (%)	≤ 0.25
Cr (%)	-
Ni (%)	-
Nb (%)	-
C_eq (%)	≤ 0.35
Galvanisation	Class 1

S275 CLAS AM FCE

	S275 CLAS AM FCE
C (%)	≤ 0.180
Mn (%)	≤ 1.30
P (%)	≤ 0.025
S (%)	≤ 0.025
Si (%)	≤ 0.03
Al (%)	≥ 0.020
Cu (%)	≤ 0.25
Cr (%)	≤ 0.15
Ni (%)	≤ 0.25
Nb (%)	-
C_eq (%)	≤ 0.40
Galvanisation	Class 1

S355 CLAS AM FCE

	S355 CLAS AM FCE
C (%)	≤ 0.200
Mn (%)	≤ 1.60
P (%)	≤ 0.025
S (%)	≤ 0.012
Si (%)	≤ 0.03
Al (%)	≥ 0.020
Cu (%)	≤ 0.25
Cr (%)	≤ 0.15
Ni (%)	≤ 0.25
Nb (%)	≤ 0.060
C_eq (%)	≤ 0.45
Galvanisation	Class 1

Prev grade Next grade

A40 - Steel coils for laser cutting applications

Available grades:

High yield strength steels for cold forming

Structural steels

Properties

Advantages

Applications

Surface quality

Weldability

Brand correspondence

High yield strength steels for cold forming

Amstrong® 320MC CLAS AM FCE

Amstrong® 360MC CLAS AM FCE

Amstrong® 420MC CLAS AM FCE

Amstrong® 500MC CLAS AM FCE

Structural steels

S200 CLAS AM FCE

S240 CLAS AM FCE

S275 CLAS AM FCE

S355 CLAS AM FCE

Dimensions

Mill finish

Amstrong® 320MC CLAS AM FCE

Amstrong® 320MC CLAS AM FCE

Amstrong® 360MC CLAS AM FCE

Amstrong® 360MC CLAS AM FCE

Amstrong® 420MC CLAS AM FCE

Amstrong® 420MC CLAS AM FCE

Amstrong® 500MC CLAS AM FCE

Amstrong® 500MC CLAS AM FCE

S200 CLAS AM FCE

S200 CLAS AM FCE

S240 CLAS AM FCE

S240 CLAS AM FCE

S275 CLAS AM FCE

S275 CLAS AM FCE

S355 CLAS AM FCE

S355 CLAS AM FCE

Pickled coils

Amstrong® 320MC CLAS AM FCE

Amstrong® 320MC CLAS AM FCE

Amstrong® 360MC CLAS AM FCE

Amstrong® 360MC CLAS AM FCE

Amstrong® 420MC CLAS AM FCE

Amstrong® 420MC CLAS AM FCE

Amstrong® 500MC CLAS AM FCE

Amstrong® 500MC CLAS AM FCE

S200 CLAS AM FCE

S200 CLAS AM FCE

S240 CLAS AM FCE

S240 CLAS AM FCE

S275 CLAS AM FCE

S275 CLAS AM FCE

S355 CLAS AM FCE

S355 CLAS AM FCE

Mechanical properties

High yield strength steels for cold forming

Amstrong® 320MC CLAS AM FCE

Amstrong® 360MC CLAS AM FCE

Amstrong® 420MC CLAS AM FCE

Amstrong® 500MC CLAS AM FCE

Structural steels

S200 CLAS AM FCE

S240 CLAS AM FCE

S275 CLAS AM FCE

S355 CLAS AM FCE

Chemical composition

High yield strength steels for cold forming

Amstrong® 320MC CLAS AM FCE

Amstrong® 360MC CLAS AM FCE

Amstrong® 420MC CLAS AM FCE

Amstrong® 500MC CLAS AM FCE

Structural steels

S200 CLAS AM FCE

S240 CLAS AM FCE

S275 CLAS AM FCE

S355 CLAS AM FCE

For more information on our products, visit the document centre.

Amstrong^® 320MC CLAS AM FCE

Amstrong^® 360MC CLAS AM FCE

Amstrong^® 420MC CLAS AM FCE

Amstrong^® 500MC CLAS AM FCE

Amstrong^® 320MC CLAS AM FCE

Amstrong^® 320MC CLAS AM FCE

Amstrong^® 360MC CLAS AM FCE

Amstrong^® 360MC CLAS AM FCE

Amstrong^® 420MC CLAS AM FCE

Amstrong^® 420MC CLAS AM FCE

Amstrong^® 500MC CLAS AM FCE

Amstrong^® 500MC CLAS AM FCE

Amstrong^® 320MC CLAS AM FCE

Amstrong^® 320MC CLAS AM FCE

Amstrong^® 360MC CLAS AM FCE

Amstrong^® 360MC CLAS AM FCE

Amstrong^® 420MC CLAS AM FCE

Amstrong^® 420MC CLAS AM FCE

Amstrong^® 500MC CLAS AM FCE

Amstrong^® 500MC CLAS AM FCE

Amstrong^® 320MC CLAS AM FCE

Amstrong^® 360MC CLAS AM FCE

Amstrong^® 420MC CLAS AM FCE

Amstrong^® 500MC CLAS AM FCE

Amstrong^® 320MC CLAS AM FCE

Amstrong^® 360MC CLAS AM FCE

Amstrong^® 420MC CLAS AM FCE

Amstrong^® 500MC CLAS AM FCE