STRUCTURAL ROLLED PRODUCTS Structural rolled products from carbon steel Under to ASTM A570/A570M
Rolled sheets and coils are manufactured of carbon structural steel of grades G30, G33, G36, G40, G45, G50, G55 and are used for metalwork fabrication. The thickness of rolled products delivered is 1.5 till 6.0 mm. Dimension tolerances take into account the requirements of standards А 568/ 568/ А 568 568М and А 749/ 749/ А 749 749М.
Steel can be produced either by BOF or by electric furnaces. Chemical composition Steel Grade
Fraction of total mass, % C max
Mn max
P max
S max
Cu min
30, 33, 36, 40
0.25
0.90
0.035
0.040
0.20
45, 50, 55
0.25
1.35
0.035
0.040
0.20
Mechanical properties Steel Grade
Ultimate strength, Yield strength,σт, Relative elongation % (Lspecimen= 50 mm), not less MPa (Ksi), not less MPa (Ksi), not less than, at rolled product thickness, mm than than Up to 1.6 1.6-2.5 (incl.`) Over 2.5 to 6.0 incl.
Relative elongation % (Lspecimen = 200 mm), not less than, at rolled product thickness 2.5 – 6.0 mm
30
340 (49)
205 (30)
21
2
25
19
33
360 (52)
230 (33)
18
22
23
18
36
356 (53)
250 (36)
17
21
22
17
40
380 (55)
275 (40)
15
20
21
16
45
415 (60)
310 (45)
13
18
19
14
50
450 (65)
345 (50)
11
16
17
12
55
480 (70)
380 (55)
9
14
15
10
Under ASTM A36/A36M
Rolled products are manufactured of carbon structural steel. General requirement for product delivery: the rolled products should conform to A6/A6M standard’s requirements. Chemical composition Thickness , mm
Fraction of total mass, % C max
Mn
P max
S max
Si
Up to 20, incl..
0.25
-
0.04
0.05
-
Over 20 to 40, incl.
0.25
0.8-1.2
0.04
0.04
-
Over 40 to 65, incl.
0.26
0.8-1.2
0.04
0.04
0.15-0.40
Over 65 to 155, incl.
0.26
0.8-1.2
0.04
0.04
0.15-0.40
Mechanical properties Steel Grade
Structural carbon steel
Yield strength, MPa (Ksi), not less than 250 (36)
Breaking test, MPa (Ksi), not less than
Relative elongation % Relative elongation % (Lspecimen = 50 mm), not (Lspecimen = 200 mm), not less than less than
400-550 (58-80)
23
20
1
Under ASTM A283/A283M
Rolled sheets 1.5 to 2.0 mm thick and 1000 to 1850 mm wide are manufactured from general-purpose structural steel grades A, B, C and D. General requirement for delivery: rolled products should conform to A6/A6M standard’s requirements. Steel can be produced by basic oxygen furnace or electric furnace. Chemical composition Steel Grade
Fraction of total mass, % C max
Mn
P max
S max
Si at rolled product thickness Up to 40 mm, inclusive
Over 40 mm
A
0.14
0.90
0.04
0.05
0.4 max
0.15-0.40
B
0.17
0.90
0.04
0.05
0.4 max
0.15-0.40
C
0.24
0.90
0.04
0.05
0.4 max
0.15-0.40
D
0.27
0.90
0.04
0.05
0.4 max
0.15-0.40
Mechanical properties Steel Grade
Yield strength, MPa (Ksi)
Breaking test, MPa (Ksi), not less than
Relative elongation % Relative elongation % (Lspecimen = 50 mm), not (Lspecimnen = 200 mm), less than not less than
A
165 (24)
345-450 (45-60)
30
27
B
175 (27)
345-450 (50-60)
28
25
C
205 (30)
380-515 (55-75)
25
22
D
230 (33)
415-550 (60-80)
23
20
2
ROLLED PRODUCTS FROM QUALITY STRUCTURAL STEEL Under GOST 1577-93
Plates and wide-strip rolled products are manufactured of quality structural alloy and nonalloy steel. Range of products Standard for chemical composition
Steel Grade
GOST 1050-88
Rolled product dimensions, mm Thick-ness
Width
08ps, 08, 10ps, 10, 20ps, 20, 25, 30, 35, 40, 45, 50, 55, 60
4-12
950-1830
20, 40, 45
8-50
950-1830
GOST 9045-93
08Yu
4-12
950-1830
GOST 4543-71
15G, 20G, 30G, 40G, 50G, 10G2, 35G2, 20H, 30H, 38H А , 40H, 45H
4-12
950-1830
GOST 14959-79
65, 70, 60G, 70G
4-12
950-1830
Dimensions of versatile wide-strip rolled products Steel Grade
Maximal width of sheets at thickness, mm 4.0
4.5
5.0
6.0
7.0
8.0
9.0
10.0
12.0
08 - 20
1500
1500
1500
1500
1500
1500
1500
1500
1500
25 - 35
1250
1250
1400
1500
1500
1500
1500
1500
1500
Sheet length: from 4000 to 12000 mm. Coil dimensions: coil inside diameter: 850 mm, Maximal coil outside diameter: 2300 mm. Coil weight : up to 35 тonnes.
3
Chemical composition Standard GOST 1577-93 GOST 1050-88
GOST 1577-93 GOST 4543-71
GOST 1577-93 GOST 14959-79
GOST 1577-93
Steel Grade
Fraction of total mass, % C
Mn
Si
P max
S max
Cr max
Ni max
Cu max
08ps
0.05-0.11
0.35-0.65
0.05-0.17
0.035
0.040
0.10
0.30
0.30
08
0.05-0.12
0.35-0.65
0.17-0.37
0.035
0.040
0.10
0.30
0.30
10ps
0.07-0.14
0.35-0.65
0.05-0.17
0.035
0.040
0.15
0.30
0.30
10
0.07-0.14
0.35-0.65
0.17-0.37
0.035
0.040
0.15
0.30
0.30
20ps
0.07-0.24
0.35-0.65
0.05-0.17
0.035
0.040
0.25
0.30
0.30
20
0.07-0.24
0.35-0.65
0.17-0.37
0.035
0.040
0.25
0.30
0.30
25
0.22-0.30
0.50-0.80
0.17-0.37
0.035
0.040
0.25
0.30
0.30
30
0.27-0.35
0.50-0.80
0.17-0.37
0.035
0.040
0.25
0.30
0.30
35
0.32-0.40
0.50-0.80
0.17-0.37
0.035
0.040
0.25
0.30
0.30
40
0.37-0.45
0.50-0.80
0.17-0.37
0.035
0.040
0.25
0.30
0.30
45
0.42-0.50
0.50-0.80
0.17-0.37
0.035
0.040
0.25
0.30
0.30
50
0.47-0.55
0.50-0.80
0.17-0.37
0.035
0.040
0.25
0.30
0.30
55
0.52-0.60
0.50-0.80
0.17-0.37
0.035
0.040
0.25
0.30
0.30
60
0.57-0.65
0.50-0.80
0.17-0.37
0.035
0.040
0.25
0.30
0.30
15G
0.12-0.19
0.70-1.00
0.17-0.37
-
-
-
-
-
20G
0.17-0.24
0.70-1.00
0.17-0.37
-
-
-
-
-
30G
0.27-0.35
0.70-1.00
0.17-0.37
-
-
-
-
-
40G
0.37-0.45
0.70-1.00
0.17-0.37
-
-
-
-
-
35G2
0.31-0.39
1.40-1.80
0.17-0.37
-
-
-
-
-
20H
0.17-0.23
0.50-0.80
0.17-0.37
-
-
-
-
-
30H
0.24-0.32
0.50-0.80
0.17-0.37
-
-
-
-
-
10G2
0.07-0.15
1.20-1.60
0.17-0.37
-
-
-
-
-
65G
0.62-0.70
0.90-1.20
0.17-0.37
-
-
0.25
-
-
65
0.62-0.70
0.50-0.80
0.17-0.37
-
-
0.25
-
-
70
0.67-0.75
0.50-0.80
0.17-0.37
-
-
0.25
-
-
70G
0.67-0.75
0.90-1.20
0.17-0.37
-
-
0.25
-
-
08Yu
0.08 max
0.35 max
0.03 max
0.020
0.025
-
-
-
GOST 9045-93
4
Mechanical properties Standard
GOST 1577-93 GOST 1050-88
GOST 1577-93 GOST 4543-71
GOST 1577-93
Steel Grade
Normalized and hot-rolled sheets Relative elongation N/сm2 (kgf/mm2), not less δ5”, % than
Impact strength σв, N/сm2 KCU – 20 J/см2, not (кгf/mm2), not less less than than
Relative elongation δ5”, %
08ps
310 (32)
32
-
270 (28)
32
08
310 (32)
32
-
270 (28)
32
10ps
330 (34)
32
-
290 (30)
32
10
330 (34)
32
29
290 (30)
32
20ps
410 (42)
28
-
370 (38)
28
20
410 (42)
28
29
370 (38)
28
25
440 (45)
25
-
400 (41)
26
30
480 (49)
24
-
430 (44)
24
35
520 (53)
21
-
480 (49)
22
40
560 (57)
20
-
520 (53)
21
45
590 (60)
18
-
550 (65)
19
50
630 (64)
16
-
580 (59)
17
15G
420 (43)
28
29
380 (39)
29
20G
440 (45)
27
29
400 (41)
28
30G
540 (55)
20
-
-
-
40G
590 (60)
17
-
-
-
35G2
620 (63)
13
-
-
-
20H
780 (80)
11
-
-
-
30H
880 (90)
12
-
-
-
10G2
440 (45)
28
-
400 (41)
29
65G
740 (75)
12
-
-
-
70G
780 (80)
10
-
-
-
08Yu
250-350 (26-36)
42
-
-
-
σв,
Sheets from continuous rolling mills
GOST 14959-79 GOST 1577-93 GOST 9045-93 Under EN 10155-93
Rolled products of structural steel with higher resistance to atmospheric corrosion. Production of 15-40 mm thick and up to 2500 mm wide products of steel grade S355J2G1W has been brought to a commercial level. Under ASTM A568/A568M
Rolled products of higher-strength carbon and low alloy steel are made in the form of sheets and coils. Thickness: 1.5 - 6.0 mm, width: 300-1200 mm.
5