st 37 (Steel, chemical composition n properties n its equivalency for Certain purposes)

chemical composition n properties (0.17-0.20 % C, 0.05% P, 0.05%S, 0.009%N) (tensile strength 340-510 MPa, yield strength 195-235MPa)

DIN 17100 Steel Grade classification and chemical composition of the steels
Chemical composition in % by wt. Chemical Composition in % by wt.
Steel grade
Ladle analysis Sample Analysis

Material C P S N C P S N
Additional
Number Nitrogen
Type of combining for product thicknesses in mm Steel
Deoxidation for Product thickness in mm elements(e.g.at Grade
code least 0.02% A l
# total) >16 >40 >63
>63 >30
New New >16 >30 >40 ≤ 16 ≤30 ≤63 ≤100 >100
≤ 16 ≤100 >100 ≤40
≤30 ≤40 < 1

Max. Max. Max Max

St.
1.0037 - optional 0.17 0.20 0.20 0.20 0.20 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
37-2 By
Ust. agreement USt.37-
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
37-2 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

Mechanical and technological properties

Steel grade according to the above table Tensile strength Rm Upper yield point ReH
For Product thickness in mm for product thickness in mm
≥3 >16 >40 >63 >80
<1 >100 ≤16 >100
≤100 ≤40 ≤63 ≤80 ≤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 1.0037
235 225 215 205 195
USt.37-2 1.0036
360 upto 510 340 upto470
RSt.37-2 1.0038
235 225 215 215 215
St.37-3 1.0116
St.44-2 1.0044
430 upto 580 410 upto 540 by agreemrnt 275 265 255 245 235 by agreement
St.44-3 1.0144
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
 Mechanical and technological properties
Elongation at rupture Bending test (180 ) Notched-bar impact work
Steel
Grade (Gauge length L=80 mm (Gauge length L= 5 d) (Thickness of ISO V-notch specimens (longitudinal )
specimen) for
product thickness in For Product thickness in
for product specimen in mm mm mm
Position of Position of Condition Temperature
Specimen ≥0,5 ≥1 ≥1,5 ≥2 ≥2,5 ≥3 >40 >63 Specimen ≥3 >63 of ≥10
>16 >63
Code >100 <3 >100 treatment C >100
<
Number <1 < 2 <2,5 < 3 ≤63 ≤100 ≤63 ≤100 ≤63 ≤100
1,5 ≤40 ≤16
% min Mandrel diameter J min

St 33 10 11 12 13 14 18 2.5a 3a
-- -- -- -- -- U, N --- --- -- -- --
8 9 10 11 12 16 3a 3.5a
27 ---
+20 ---
St 37-2 0,5a 1a 1,5a U, N 27 ---- ---
U, N, +20 ---
USt 37- Longitudinal Longitudinal 1.5a 2a 2,5a U, N 27 ---- ----
2 transverse 17 18 19 20 21 26 25 24 transverse +20 ---
by
RSt 37- 15 16 17 18 19 24 23 22 agreement
2 0,5a 1a 1a U +/- 0 27 27 23
by
agreement
1a 1,5a 1,5a N -20 27 27 23
St 37-3
St 44-2 14 15 16 17 18 22 21 20 2a 2.5a 3a U,N + 20 27 27 --- ---
 +/- 20, 27 27 23
12 13 14 15 16 20 19 18 2.5a 3a 3.5a by
St 44-3 U, N
agreement
-20 27 27 23
14 15 16, 17 18 22 21 20 2a 2,5a 3a U +/- 0 27 27 23
by
St 52-3 12 13 14 15 16 20 19 18 2.5a 3a 3,5a N - 20 27 27 23
agreement

12 13 14 15 16 20 19 18
St 50-2 -- --- -- --- U, N --- -- -- -- ---
10 11 12 13 14 18 17 16

8 9 10 11 12 16 15 14
St 60-2 --- -- -- -- U, N --- -- -- -- --
6 7 8 9 10 14 13 12

4 5 6 7 8 11 10 9
St 70-2 --- -- -- -- U, N --- -- -- -- --
3 4 5 6 7 10 9 8

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Steel n its equivalency for Certain purposes

General purpose structural steels

 NFA 35- UNE
Material # EN 10025 DIN 17100 501 UNI 7070 BS 4360 36.080 ASTM JIS G3101
A 283 B - A
1.0035 S185 St 33 A 33 Fe 320 A 310-0 569 CQ SS 330
A 283 C - A
1.0037 S235JR St 37-2 E 24-2 Fe 360 B 40 A 570 Gr. 33
AE 235 B-
1.0038 S235JRG2 RSt 37-2 E 24-2 NE 40 B FN
1.0116 S235J2G3 St 37-3 N E 24-4 Fe 360 D 40 D AE 235 D
1.0117 S235J2G4
A 283 D - A
1.0044 S275JR St 44-2 E 28-2 Fe 430 B 43 B AE 275 B 36 SS 400

1.0143 S275JO St 44-3 U E 28-3 Fe 430 C 43 C AE 275 C A 578 Gr. 70

1.0144 S275J2G3 St 44-3 N E 28-4 Fe 430 D 43 D AE 275 D A 633 Gr. A

1.0145 S275J2G4

A 572 Gr. 50
- A 678 Gr.
1.0045 S355JR E 36-2 Fe 510 B 50 B AE 355 B A SS 490
1.0553 S355JO St 52-3 U E 36-3 Fe 510 C 50 C AE 355 C A 441
1.057 S355J2G3 St 52-3 N Fe 510 D 50 D AE 355 D
1.0577 S355J2G4
1.0595 S355K2G3 E 36-4 50 DD
1.0596 S355K2G4
1.005 E295 St 50-2 A 50-2 Fe 490 A 490 SS 500
1.006 E335 St 60-2 A 60-2 Fe 590 A 590
1.007 E360 St 70-2 A 70-2 Fe 690 A 690

Fine-grain structural steels, thermo mechanically rolled

 EN 10113- NFA 36-
Material # 3 SEW 083 201 UNI 7382 BS 4360 UNE ASTM JIS
Fe E 275
1.8818 S275M StE 275 TM KGTM
TStE 275 Fe E 275
1.8819 S275ML TM KTTM
Fe E 355
1.8823 S355M StE 355 TM E 355 R KGTM A 572 Gr. C
TStE 355 Fe E 355
1.8834 S355ML TM E 355 FP KTTM 50 EE A 633 Gr. C

1.8825 S420M StE 420 TM E 420 R A 572 Gr. 60

TStE 420
1.8836 S420ML TM E 420 FP A 633 Gr. E
Fe E 460
1.8827 S460M StE 460 TM E 460 R KGTM A 572 Gr. 65
TStE 460 Fe E 460
1.8838 S460ML TM E 460 FP KGTM 55 EE A 572 Gr. 65

Boiler steels
EN 10028- NFA 36- UNE
Material # 2 DIN 17155 205 UNI 5869 BS 1501 36087 ASTM JIS G3115

A 285 Gr. C-
161 Gr. 360 A 414 Gr. C
Fe 360 - / 164 Gr. / A 516 Gr.
1.0345 P235GH HI A 37 CP 1KW 360 A 37 RCI 55 SPV 24

161 Gr. 400

/ 164 Gr. A 414 Gr. E
Fe 410 - 400 / 224 / A 516 Gr.
1.0425 P265GH HII A 42 CP 1KW Gr. 400 A 42 RCI 60
 Fe 460 - A 414 Gr. F /
1.0481 P295GH 17 Mn 4 A 48 CP 1KW 224 Gr. 490 A 47 RCI A 516 Gr. 65 SPV 32
Fe 510 -
1.0473 P355GH 19 Mn 6 A 52 CP 1KW A 52 RCI A 414 Gr. G SPV 36

1.5415 16Mo3 15 Mo 3 15 D3 15 Mo 3 1503 - 243 B 16 Mo 3 A 204 Gr. B

1.7335 13CrMo4-5 13CrMo 4 4 15 CD 4-05 14 CrMo 4.5 620 Gr. 27 14 CrMo 4.5 A 387 Gr. 12
10CrMo 9
1.738 10CrMo9-10 10 10 CD 9.10 622 Gr. 31 A 387 Gr. 22
12 CrMO 12 CrMo
1.7383 11CrMo9-10 9.10 9.10

Weldable normalized fine grained pressure vessel steels

EN 10028- NFA 36- UNE
Material # 3 DIN 17102 207 UNI 7382 BS 1501 36081 ASTM JIS
1.0486 P275N StE 285 224 Gr. 400

1.0487 P275NH WStE 285 224 Gr. 430 A 516 Gr. 60

1.0488 P275NL1 TStE 285 A 662 Gr. A

1.1104 P275NL2 EStE 285
Fe E 355
1.0562 P355N StE 355 A 510 AP KG 223 Gr. 490 AE 355 KG A 537 CL 1
1.0565 P355NH WSteE 355 A 510 AP Fe E 355-2 224 Gr. 490 A 662 Gr. C
1.0566 P355NL1 TStE 355 A 510 FP 1 Fe E 355-3 224 Gr. 490 A 737 Gr. B
1.1106 P355NL2 EStE 355