alform M SERIES

alform M SERIES

Thermomechanical rolled steel with excellent cold forming ability

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Hard Steel Ind.
General description of productsDimensions and condition upon deliveryTensile testCut impact energy and edge radiiAdditional Information

General description of products

Thermomechanically rolled alform® steels have a low-carbon, fine-grained microstructure. The steel can be annealed for stress relief between 530 and 580 °C. Annealing above 580 °C is prohibited and will result in reduced flow and tensile strength. If heat treatment above 580 °C is required, please contact our quality control department.

These steel grades meet all the requirements for comparable steels according to EN 10149-2.

Compelling benefits

  • Already well suited for cutting, stamping and shaping
  • Very good weldability due to low carbon equivalent
  • Improved properties with narrower limits than comparable standard steels

Dimensions and condition upon delivery

Maximum width per thickness Minimum width 900 mm for hot rolled steel strip Thickness
[mm]
2.0 2.5 3.0 3.5 4.0 6.0 12.0 15,0
alform 280 м 1620 1620 1620 1620 1620 1620 1620 1620
alform 315 M 1620 1620 1620 1620 1620 1620 1620 1620
alform 340 м 1620 1620 1620 1620 1620 1620 1620 1620
alform 355 M 1500 1620 1620 1620 1620 1620 1620 1620
alform 380 M 1500 1620 1620 1620 1620 1620 1620 1620
alform 420 M 1360 1620 1620 1620 1620 1620 1620 1620
alform 460 M 1360 1620 1620 1620 1620 1620 1620 1620
alform 500 м 1280 1480 1620 1620 1620 1620 1620 1500
Alform 550 M 1280 1480 1620 1620 1620 1620 1620 1500
alform 600 м 1250 1380 1500 1620 1620 1620 1620 1500
Alform 650 M 1250 1380 1500 1620 1620 1620 1) 1620 1) 1500
alform 700 м 1250 1380 1500 1620 1620 1620 1) 1620 1) 1500

 

(Different sheets of hot-rolled tape)

Max width per thickness
Minimum width 1500 mm		 Thickness 2)
[mm]		 max. width
[mm]		 max. length
[mm]		 Delivery Condition
Alform 355 M plate 8 ≤ 100 3800 18,700 TM + ACC
Alform plate 420 M 8 ≤ 100 3800 18,700 TM + ACC
plate Alform 460 M 8 ≤ 100 3800 18,700 TM + ACC
plate alform 500 m 8 ≤ 80 3800 18,700 TM + ACC
plate Alform 550 M 8 ≤ 50 3800 18,700 TM + ACC

(Heavy plates)

1) Available only as sliced ​​leaves in an unpickled state.
2) For thickness 8 < 9 mm and width ≥ 3450 – 3800 mm max. length 17000 mm.
For thickness 9 < 10 mm and width > 3650 – 3800 mm max. length 17000 mm.

Thermomechanical rolling TM
ACC accelerated cooling

The different ways of producing cut sheets from hot-rolled steel strip and thick sheet lead to certain product advantages, which are described in more detail in the relevant technical specifications. The special feature of alform plate 700 M and alform 700 ME is their excellent strength.
alform®

Tensile test

Tensile testing Reh yield strength
[%] min.		 Tensile strength R m
[%] min.		 Extension
[%] min.
[МПа] [МПа] А 80 A 5
alform 280 м 280 – 400 370 – 470 24 28
alform 315 M 315 – 440 390 – 490 22 26
alform 340 м 340 – 470 420 – 520 20 24
alform 355 M 355 – 480 430 – 530 20 24
alform 380 M 380 – 510 450 – 550 20 24
alform 420 M 420 – 550 480 – 580 18 22
alform 460 M 460 – 590 520 – 640 16 19
alform 500 м 500 – 650 550 – 680 15 18
Alform 550 M ≥ 550 600 – 740 14 17
alform 600 м ≥ 600 650 – 800 13 16
alform 650 M 3) ≥ 650 700 – 850 12 15
alform 700 M 3) ≥ 700 750 – 930 11 14

(Different sheets of hot-rolled tape)

Tensile test  Thickness 4) Yield limit5) Reh
[%] min.		 Tensile strength5) Rm
[%] min.		 Extension 5)
[%] min.
[мм] [МПа] [МПа] A 5
plate Alform 355 M   8 ≤ 16
> 16 ≤ 40
> 40 ≤ 63
> 63 ≤ 100		 355
345
335
325		 470 – 630
470 – 630
450 – 610
440 – 600 		 22
22
22
22
Alform plate 420 M    8 ≤ 16
> 16 ≤ 40
> 40 ≤ 63
> 63 ≤ 100		 420
400
390
380		 520 – 680
520 – 680
500 – 660
480 – 650		 19
19
19
19
плита Alform 460 M     8 ≤ 16
> 16 ≤ 40
> 40 ≤ 63
> 63 ≤ 100		 460
440
430
410		 540 – 720
540 – 720
530 – 710
510 – 690		 17
17
17
17
plate alform 500 m      8 ≤ 30
> 30 ≤ 50
> 50 ≤ 80		 500
480
460		 570 – 750
550 – 750
550 – 750		 16
16
16
plate Alform 550 M       8 ≤ 30
> 30 ≤ 50		 550
530		 600 – 760
570 – 730		 16
16

(Heavy plates)

3) The yield strength may be lower by 20 MPa for thickness > 8 mm.
Test Direction: The longitudinal minimum values for ReH and Rm also apply in the transverse direction.
For an indistinct shear yield strength and in arbitrary cases the elongation of Rp0.2 A80 is used
to a thickness of less than 3 mm and A5 to a thickness greater than or equal to 3 mm.
4) Greater thickness on request.
5) Tensile tests are carried out on transverse samples according to EN 10002.

Cut impact energy and edge radii

Impact Energy
cut Radius edging		 Notch Impact Energy 6) Av
[Joule]		 Border radii 7)
Ri min. at the edge of 90°
Place of bending of the edge in the direction
rolling
(s = sheet thickness)		 Bending mandrel diameter
BgD min. 
M
Test temperature
– 20 °C		 METest temperature-40 °C8) s < 3 mm s 3 – 6 mm s > 6 mm Thickness = s
alform 280 м 40 – 0,25 с 0,5 с 0,8 с 0 с
alform 315 M 40 – 0,25 с 0,5 с 0,8 с 0 с
alform 340 м 40 – 0,25 с 0,5 с 0,8 с 0 с
alform 355 M (ME) 40 27 0,25 с 0,5 с 0,8 с 0 с
alform 380 M (ME) 40 27 0,25 с 0,5 с 0,8 с 0,5 с
alform 420 M (ME) 40 27 0,5 с 1,0 с 1,0 с 0,5 с
alform 460 M (ME) 40 27 0,5 с 1,0 с 1,4 с 1,0 с
alform 500 M (ME) 40 27 0,8 с 1,2 с 1,6 с 1,0 с
alform 550 M (ME) 40 27 0,8 с 1,2 с 1,6 с 1,5 с
alform 600 M (ME) 40 27 0,8 с 1,2 с 1,6 с 1,5 с
alform 650 M (ME) 40 27 0,8 с 1,2 с 1,6 с 1,5 с
alform 700 M (ME) 40 27 0,8 с 1,2 с 1,6 с 1,5 с

(Different sheets of hot-rolled tape)

Impact energy
cut Radius edging		 Notch Impact Energy 9) Av
[Joule]		 Border radii
Ri min. at the edge of 90°
Where the edge bends in
rolling direction
(s = sheet thickness)
Thickness
[mm]		 Direction of tests:
longitudinal
temperature -50 °C		 Test direction: transverse.
Temperature
-50 °C		 longitudinal transverse
Alform 355 M plate 8 ≤ 100 27 16 1.5 s 1.0 s
Alform plate 420 M 8 ≤ 100 27 16 2.0 s 1.5 s
plate Alform 460 M 8 ≤ 100 27 16 2.0 s 1.5 s
plate alform 500 m 8 ≤ 80 27 16 3.0 s 2.0 s
plate Alform 550 M 8 ≤ 50 27 16 3.0 s 2.0 s

(Heavy plates)

6) Av is the minimum average of three samples (ISO-V, longitudinal) relative to the full-size sample
(10 x 10 mm).
7) The smallest admissible internal radius at a 90° edge, Ri min.
8) Values ​​at -40 °C are guaranteed for a limited size range and the material is designated as ME.
9) Notched plate impact bending test according to EN 10045 using Charpy-V longitudinal specimens at
-50 °C. The average value of the three tests must meet the established requirements. None
of individual values ​​cannot be lower than 70% of the minimum average value. At thickness
less than < 10 mm, Sharpie-V samples are tested in sizes 10 x 7.5 mm. Guaranteed
the value falls in proportion to the cross-section of the sample.

Additional Information

Folder for alform® products excellent solutions in TM high-strength and ultra-high-strength steel

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Technical data sheet alform® 355-550 heavy plate

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Technical data sheet alform® M-series (hot-rolled steel strip)

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Technical terms of delivery Thick plate alform® 355-550

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Technical conditions of delivery of hot-rolled steel strip

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Assortment of hot-rolled steel strip

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