Industry

Semi-processed standard grades have guaranteed magnetic properties in accordance with EN 10341:2006 (which superseded EN 10126:1995 for non-alloyed grades and EN 10165:1995 for alloyed grades). The magnetic properties are developed during the final annealing cycle, which is performed by the client after punching the laminations. This annealing treatment reduces losses and improves permeability and polarisation, as a result of recrystallisation, grain growth and also - for certain grades - decarburisation.

The punchability of the semi-processed grades has been optimised by the application of an optimised final skin-pass reduction, after the cold rolling and annealing process. Skin-passing produces a controlled surface roughness, ensuring good material behaviour in the punching presses. This roughness also prevents the strips from sticking during the client’s final annealing treatment. Regarding magnetic performance, skin-passing also plays an important role by stimulating grain growth during the annealing cycle, which results in further reduction of losses and increased permeability of the steel.

Non-alloyed semi-processed electrical steels are designed for small industrial motors, fans and domestic appliances such as washing machine motors, microwave oven transformers and refrigerator compressors.

Alloyed semi-processed electrical steels are designed for similar higher efficiency versions of these applications, as they have lower losses whilst the permeability remains at a good level.

The punching process needs to be carried out with an appropriate lubricant, which must be selected carefully, especially in the case of the alloyed semi-processed grades.

	EN 10341:2006	EN 10126:1995	EN 10165:1995	IEC/CEI 60404-8-3:2005
M 340-50 K	M 340-50 K		M 340-50 E	M 340-50 K5
M 390-50 K	M 390-50 K		M 390-50 E	M 390-50 K5
M 450-50 K	M 450-50 K		M 450-50 E	M 450-50 K5
M 560-50 K	M 560-50 K		M 560-50 E	M 560-50 K5
M 660-50 K	M 660-50 K	M 660-50 D		M 660-50 K5
M 890-50 K	M 890-50 K	M 890-50 D		M 890-50 K5
M 1050-50 K	M 1050-50 K	M 1050-50 D		M 1050-50 K5

	M 340-50 K
EN 10341:2006	M 340-50 K
EN 10126:1995
EN 10165:1995	M 340-50 E
IEC/CEI 60404-8-3:2005	M 340-50 K5

	EN 10341:2006	EN 10126:1995	EN 10165:1995	IEC/CEI 60404-8-3:2005
M 390-65 K	M 390-65 K		M 390-65 E	M 390-65 K5
M 450-65 K	M 450-65 K		M 450-65 E	M 450-65 K5
M 520-65 K	M 520-65 K		M 520-65 E	M 520-65 K5
M 630-65 K	M 630-65 K		M 630-50 E	M 630-65 K5
M 800-65 K	M 800-65 K	M 800-65 D		M 800-65 K5
M 1000-65 K	M 1000-65 K	M 1000-65 D		M 1000-65 K5
M 1200-65 K	M 1200-65 K	M 1200-65 D		M 1200-65 K5

	Notes	Side trimmed		Slit coils
	Notes	Min width	Max width	Min width	Max width
M 340-50 K	1	600	1300	40	600
M 390-50 K			1300
M 450-50 K			1350
M 560-50 K			1350
M 660-50 K			1400
M 890-50 K
M 1050-50 K

Notes		1
Side trimmed	Min width	600
Side trimmed	Max width	1300
Slit coils	Min width	40
Slit coils	Max width	600

	Conventional density (kg/dm³)	Max loss (W/kg) at 50 Hz at 1 T	Max loss (W/kg) at 50 Hz at 1.5 T	Max loss (W/kg) at 60 Hz at 1.5 T	Min polarisation (T) at 2500 A/m	Min polarisation (T) at 5000 A/m	Min polarisation (T) at 10,000 A/m
		Indicative	Guaranteed	Indicative	Guaranteed	Guaranteed	Guaranteed
M 340-50 K	7.65	1.42	3.40	4.32	1.54	1.62	1.72
M 390-50 K	7.70	1.62	3.90	4.97	1.56	1.64	1.74
M 450-50 K	7.75	1.92	4.50	5.67	1.57	1.65	1.75
M 560-50 K	7.80	2.42	5.60	7.03	1.58	1.66	1.76
M 660-50 K	7.85	2.80	6.60	8.38	1.62	1.70	1.79
M 890-50 K		3.70	8.90	11.30	1.60	1.68	1.78
M 1050-50 K		4.30	10.50	13.34	1.57	1.65	1.77


Conventional density (kg/dm³)		7.65
Max loss (W/kg) at 50 Hz at 1 T	Indicative	1.42
Max loss (W/kg) at 50 Hz at 1.5 T	Guaranteed	3.40
Max loss (W/kg) at 60 Hz at 1.5 T	Indicative	4.32
Min polarisation (T) at 2500 A/m	Guaranteed	1.54
Min polarisation (T) at 5000 A/m	Guaranteed	1.62
Min polarisation (T) at 10,000 A/m	Guaranteed	1.72

	Direction	R_e (MPa)	R_m (MPa)	A₈₀ (%)	HV
M 340-50 K	T	400 - 450	450 - 550	7 - 23	150 - 210
M 390-50 K	T	390 - 485	445 - 515	7 - 26	150 - 210
M 450-50 K	T	355 - 435	405 - 475	10 - 29	135 - 190
M 560-50 K	T	380 - 440	435 - 495	10 - 29	130 - 185
M 660-50 K	T	350 - 450	380 - 470	13 - 30	125 - 170
M 890-50 K	T	285 - 450	350 - 470	16 - 35	120 - 170
M 1050-50 K	T	240 - 450	295 - 470	21 - 39	105 - 170

	Direction	M 340-50 K
R_e (MPa)	T	400 - 450
R_m (MPa)	T	450 - 550
A₈₀ (%)	T	7 - 23
HV	T	150 - 210

	Direction	R_e (MPa)	R_m (MPa)	A₈₀ (%)	HV
M 390-65 K	T	505 - 565	560 - 610	10 - 21	185 - 235
M 450-65 K	T	435 - 465	470 - 510	18 - 24	180 - 210
M 520-65 K	T	370 - 440	420 - 480	12 - 26	150 - 190
M 630-65 K	T	370 - 440	420 - 480	12 - 31	150 - 190
M 800-65 K	T	360 - 450	380 - 470	12 - 31	130 - 175
M 1000-65 K	T	280 - 450	350 - 470	17 - 37	120 - 170
M 1200-65 K	T	270 - 450	320 - 470	19 - 39	100 - 170

	Direction	M 1000-70 K AM FCE
R_e (MPa)	T	300 - 340
R_m (MPa)	T	360 - 400
A₈₀ (%)	T	28 - 35
HV	T	120 - 140

	Direction	M 1200-80 K AM FCE
R_e (MPa)	T	320 - 375
R_m (MPa)	T	360 - 400
A₈₀ (%)	T	20 - 30
HV	T	125 - 155

	Direction	R_e (MPa)	R_m (MPa)	A₈₀ (%)	HV
M 1300-100 K AM FCE	T	370 - 400	390 - 430	21 - 27	140 - 170
M 1800-100 K AM FCE	T	255 - 305	290 - 335	29 - 43	105 - 140

D30 - Semi-processed standard grades

Available grades:

Thickness 0.50 mm

Thickness 0.65 mm

Thickness 0.70 mm

Thickness 0.80 mm

Thickness 1.00 mm

Properties

Advantages

Applications

Recommendations for use

Brand correspondence

Thickness 0.50 mm

M 340-50 K

M 390-50 K

M 450-50 K

M 560-50 K

M 660-50 K

M 890-50 K

M 1050-50 K

Thickness 0.65 mm

M 390-65 K

M 450-65 K

M 520-65 K

M 630-65 K

M 800-65 K

M 1000-65 K

M 1200-65 K

Thickness 0.70 mm

M 1000-70 K AM FCE

Thickness 0.80 mm

M 1200-80 K AM FCE

Thickness 1.00 mm

M 1300-100 K AM FCE

M 1800-100 K AM FCE

Dimensions

Thickness 0.50 mm

M 340-50 K

M 390-50 K

M 450-50 K

M 560-50 K

M 660-50 K

M 890-50 K

M 1050-50 K

Thickness 0.65 mm

M 390-65 K

M 450-65 K

M 520-65 K

M 630-65 K

M 800-65 K

M 1000-65 K

M 1200-65 K

Thickness 0.70 mm

M 1000-70 K AM FCE

Thickness 0.80 mm

M 1200-80 K AM FCE

Thickness 1.00 mm

M 1300-100 K AM FCE

M 1800-100 K AM FCE

Magnetic properties

Thickness 0.50 mm

M 340-50 K

M 390-50 K

M 450-50 K

M 560-50 K

M 660-50 K

M 890-50 K

M 1050-50 K

Thickness 0.65 mm

M 390-65 K

M 450-65 K

M 520-65 K

M 630-65 K

M 800-65 K

M 1000-65 K

M 1200-65 K

Thickness 0.70 mm

M 1000-70 K AM FCE

Thickness 0.80 mm

M 1200-80 K AM FCE