DIN 17100 Grade classification and chemical composition of the steels
| Steel grade | Type of Deoxidation | Chemical
composition in % by wt.
Ladle analysis |
Additional Nitrogen combining elements(e.g.at least 0.02% A l total) | Chemical
Composition in % by wt.
Sample Analysis |
Steel Grade | ||||||||||||||||||
| code # | Material Number | C | P | S | N | C | P | S | N | ||||||||||||||
| for Product thickness in mm | for product thicknesses in mm | ||||||||||||||||||||||
| New | New | ||||||||||||||||||||||
| ≤ 16 | >16
≤30
|
>30
≤40 |
>40
≤63
|
>63
≤100
|
>100 | ||||||||||||||||||
| ≤ 16 | >16
≤30 |
>30
≤40 |
>40
< 1 |
>63
≤100
|
>100 | ||||||||||||||||||
| Max. | Max. | Max | Max | ||||||||||||||||||||
| St. 37-2 | 1.0037 | - | optional | 0.17 | 0.20 | 0.20 | 0.20 | 0.20 | by agreement | 0.050 | 0.050 | 0.009 | - | 0.21 | 0.25 | 0.25 | 0.25 | 0.25 | 0.065 | 0.065 | 0.010 | St.37-2 | |
| Ust. 37-2 | 1.0036 | 1.0112 | U | 0.17 | 0.20 | 0.20 | 0.20 | 0.20 | 0.050 | 0.050 | 0.007 | -- | 0.21 | 0.25 | 0.25 | 0.25 | 0.25 | 0.065 | 0.065 | 0.009 | USt.37-2 | ||
| Rst. 37-2 | 1.0038 | 1.0114 | R | 0.17 | 0.17 | 0.17 | 0.20 | 0.20 | 0.050 | 0.050 | 0.009 | -- | 0.19 | 0.19 | 0.19 | 0.22 | 0.23 | 0.060 | 0.060 | 0.010 | RSt.37-2 | ||
| St. 37-3 | 1.0116 | 1.0116 | RR | 0.17 | 0.17 | 0.17 | 0.17 | 0.17 | 0.040 | 0.040 | --- | yes | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | 0.050 | 0.050 | St.37-3 | |||
| St.44-2 | 1.0044 | -- | R | 0.21 | 0.21 | 0.21 | 0.22 | 0.22 | 0.050 | 0.050 | 0.009 | -- | 0.24 | 0.24 | 0.24 | 0.25 | 0.25 | 0.060 | 0.060 | 0.010 | St.44-2 | ||
| St.44-3 | 1.0144 | -- | RR | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.040 | 0.040 | --- | yes | 0.23 | 0.23 | 0.23 | 0.23 | 0.23 | 0.050 | 0.050 | St.44-3 | |||
| St.52-3 | 1.0570 | 1.0841 | RR | 0.20 | 0.20 | 0.22 | 0.22 | 0.22 | 0.040 | 0.040 | -- | yes | 0.22 | 0.22 | 0.24 | 0.24 | 0.24 | 0.050 | 0.050 | St.52-3 | |||
| St.50-2 | 1.0050 | 1.0532 | R | -- | -- | -- | -- | -- | -- | 0.050 | 0.050 | 0.009 | -- | -- | -- | -- | -- | -- | 0.060 | 0.050 | 0.010 | St.50-2 | |
| St.60-2 | 1.0060 | 1.0542 | R | -- | -- | -- | -- | -- | -- | 0.050 | 0.050 | 0.009 | -- | -- | -- | -- | -- | -- | 0.060 | 0.060 | 0.010 | St.60-2 | |
| St.70-2 | 1.0070 | 1.0632 | R | -- | -- | -- | -- | -- | -- | 0.050 | 0.050 | 0.009 | -- | -- | -- | -- | -- | -- | 0.060 | 0.060 | 0.010 | St.70-2 | |
Mechanical and technological properties of the steels in the as-delivered condition and/or condition of treatment according to section 8.4.1.2
| Steel grade according to the above table |
Mechanical and technological properties |
|||||||||
| Tensile strength Rm For Product thickness in mm |
Upper yield point ReH for product thickness in mm |
|||||||||
| < 1 | ≥3
≤100 |
>100 |
≤16 |
>16
≤40 |
>40
≤63 |
>63
≤80 |
>80
≤100 |
>100 | ||
| Code No. | Material No. |
N/mm2 |
N/mm2 | |||||||
| St.33 | 1.0035 | 310 up to 540 | 290 upto 510 | - | 185 | 175 | - | - | - | - |
| St.37-2
USt.37-2 |
1.0037
1.0036 |
360 upto 510 | 340 upto470 | by agreemrnt | 235 | 225 | 215 | 205 | 195 | by agreement |
| RSt.37-2
St.37-3 |
1.0038
1.0116 |
235 | 225 | 215 | 215 | 215 | ||||
| St.44-2
St.44-3 |
1.0044
1.0144 |
430 upto 580 | 410 upto 540 | 275 | 265 | 255 | 245 | 235 | ||
| St.52-3 | 1.0570 | 510 upto 680 | 490 upto 630 | 355 | 345 | 335 | 325 | 315 | ||
| St.50-2 | 1.0050 | 490 upto 660 | 470 upto 610 | 295 | 285 | 275 | 265 | 255 | ||
| St.60-2 | 1.0060 | 590 upto 770 | 570 up to 710 | 335 | 325 | 315 | 305 | 295 | ||
| St 70-2 | 1.0070 | 690 upto 900 | 670 upto 830 | 365 | 355 | 345 | 335 | 325 | ||
| Steel Grade
Code Number |
Mechanical and technological properties | |||||||||||||||||||||||
| Elongation at rupture | Bending test (180 ) | Notched-bar impact work | ||||||||||||||||||||||
| Position of Specimen | (Gauge length L=80 mm | (Gauge length L= 5 d) | Position of Specimen | (Thickness of specimen) for product thickness in mm | ISO V-notch specimens (longitudinal ) | |||||||||||||||||||
| for product specimen in mm | Condition of treatment | Temperature
C |
For Product thickness in mm | |||||||||||||||||||||
| ≥0,5
< 1 |
≥1
< 1,5 |
≥1,5
< 2 |
≥2
<2,5 |
≥2,5
< 3 |
≥3
≤40 |
>40
≤63 |
>63
≤100 |
>100 | < 3 | ≥3
≤63 |
>63
≤100 |
>100 | ≥10
≤16 |
>16
≤63 |
>63
≤100 |
>100 | ||||||||
| % min | Mandrel diameter | J min | ||||||||||||||||||||||
| St 33
|
Longitudinal transverse | 10
8 |
11
9 |
12
10 |
13
11 |
14
12 |
18
16 |
-- | -- | -- |
Longitudinal transverse |
2.5a
3 a |
3a
3.5a |
-- | -- | U, N | --- | --- | -- | -- | -- | |||
|
St 37-2 USt 37-2 RSt 37-2 |
17
15 |
18
16 |
19
17 |
20
18 |
21
19 |
26
24 |
25
23 |
24
22 |
by agreement |
0,5a
1.5a |
1a
2a |
1,5a
2,5a |
U, N U, N, U, N |
+20 +20 +20 |
27 27 27
|
--- --- --- |
--- ---- ----
|
--- ---- |
||||||
| 0,5a
1a |
1a
1,5a |
1a
1,5a |
U
N |
+/- 0
-20 |
27
27 |
27
27 |
23
23 |
by agreement | ||||||||||||||||
| St 37-3 | ||||||||||||||||||||||||
| St 44-2 | 14
12 |
15
13 |
16
14 |
17
15 |
18
16 |
22
20 |
21
19 |
20
18 |
2a
2.5a |
2.5a
3a |
3a
3.5a |
U,N | + 20 | 27 | 27 | --- | --- | |||||||
| St 44-3 | U, N | +/- 20,
-20 |
27
27 |
27
27 |
23
23 |
by agreement | ||||||||||||||||||
| St 52-3 |
14 12
|
15 13
|
16, 14
|
17 15
|
18 16
|
22 20
|
21 19
|
20 18
|
2a 2.5a
|
2,5a 3a
|
3a 3,5a
|
U N
|
+/- 0 - 20
|
27 27
|
27 27
|
23 23
|
by agreement |
|||||||
| St 50-2 | 12
10 |
13
11 |
14
12 |
15
13 |
16
14 |
20
18 |
19
17 |
18
16 |
-- | --- | -- | --- | U, N | --- | -- | -- | -- | --- | ||||||
| St 60-2 | 8
6 |
9
7 |
10
8 |
11
9 |
12
10 |
16
14 |
15
13 |
14
12 |
--- | -- | -- | -- | U, N | --- | -- | -- | -- | -- | ||||||
| St 70-2 | 4
3 |
5
4 |
6
5 |
7
6 |
8
7 |
11
10 |
10
9 |
9
8 |
--- | -- | -- | -- | U, N | --- | -- | -- | -- | -- | ||||||
|
|
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