St37-2 steel (1.0037 material) is an unalloyed structural steel grade complies with DIN 17100: 1980 and has been discarded since 2004. According to German standard DIN 17100, St37 steel is divided into St37-2, USt37-2, RSt37-2 and St37-3. Material St 37 new designation is S235, and St37-2 new designation is S235JR (1.0038), the new standard is EN 10025-2: 2004.
The material St37 datasheet and specification can be found in the following tables.
The following table shows the chemical composition of material 1.0037.
Steel 1.0037 data sheet – 1, Chemical composition (ladle analysis) according to DIN 17100 and DIN EN 10025: 1993.
| Country (Region) | Standard | Steel Grade (Steel number) | C | Mn | P | S | N | Cu | Thickness (d) (mm) | Method of deoxidation |
| Germany | DIN 17100: 1980 | St37-2 (1.0037) | 0.17 | 0.050 | 0.050 | 0.009 | ≤ 16 | Optional | ||
| 0.20 |
16 | |||||||||
| USt37-2 (1.0036) | 0.17 | 0.050 | 0.050 | 0.007 | ≤ 16 | Rimming | ||||
| 0.20 |
16 | |||||||||
| RSt37-2 (1.0038) | 0.17 | 0.050 | 0.050 | 0.009 | ≤ 40 | Killed | ||||
| 0.20 | > 40 | |||||||||
| St37-3 (1.0116) | 0.17 | 0.040 | 0.040 | – | All | Special Killed | ||||
| European Union | EN 10025: 1993 | S235JR (1.0037) | 0.17 | 1.40 | 0.045 | 0.045 | 0.009 | ≤ 16 | Optional | |
| 0.20 |
16 | |||||||||
| EN 10025-2: 2004 | S235JR (1.0038) | 0.17 | 1.40 | 0.035 | 0.035 | 0.012 | 0.55 | ≤ 40 | Killed | |
| 0.20 | > 40 |
St37 steel data sheet – 2, Chemical composition (piece analysis) according to DIN 17100 and DIN EN 10025: 1993.
| Chemical Composition (product analysis), %, ≤ | ||||||||||
| Country (Region) | Standard | Steel Grade (Steel number) | C | Mn | P | S | N | Cu | Thickness (d) (mm) | Method of deoxidation |
| Germany | DIN 17100: 1980 | St37-2 (1.0037) | 0.21 | 0.065 | 0.065 | 0.010 | ≤ 16 | Optional | ||
| 0.25 |
16 | |||||||||
| USt37-2 (1.0036) | 0.21 | 0.065 | 0.065 | 0.009 | ≤ 16 | Rimming | ||||
| 0.25 |
16 | |||||||||
| RSt37-2 (1.0038) | 0.19 | 0.060 | 0.060 | 0.010 | ≤ 40 | Killed | ||||
| 0.22 | > 40 | |||||||||
| St37-3 (1.0116) | 0.19 | 0.050 | 0.050 | – | All | Special Killed | ||||
| European Union | EN 10025: 1993 | S235JR (1.0037) | 0.21 | 1.50 | 0.055 | 0.055 | 0.011 | ≤ 16 | Optional | |
| 0.25 |
16 | |||||||||
| EN 10025-2: 2004 | S235JR (1.0038) | 0.19 | 1.50 | 0.045 | 0.045 | 0.014 | 0.60 | ≤ 40 | Killed | |
| 0.23 | > 40 | |||||||||
The yield strength, tensile strength, elongation and impact resistance are listed in the following data sheet.
Yield Strength
Material St 37-2 Datasheet – 3
| Yield strength (≥ N/mm2); Thickness (d) mm | ||
| Steel (Steel number) | d≤16 | 16< d ≤40 |
| St37-2 (1.0037) | 235 | 225 |
Tensile Strenght
Material 1.0037 Datasheet – 4
| Tensile strength (≥ N/mm2); Thickness (d) mm | ||
| Steel (Steel number) | d<3 | 3 ≤ d ≤ 100 |
| St37-2 (1.0037) | 360-510 | 340-470 |
1MPa = 1N/mm2
Elongation
Material St 37-2 Datasheet – 5
| Elongation (≥, %); Thickness (d), mm | |||||
| Steel (Steel number) | 0.5 ≤d <1 | 1≤ d <1,5 | 1,5 ≤d <2 | 2 ≤d <2,5 | 2,5 ≤d <3 |
| St37-2 (1.0037) | 17 | 18 | 19 | 20 | 21 |
| Elongation (≥, %); Thickness (d), mm | |||||
| Steel (Steel number) | 3 ≤d ≤40 | 40< d ≤63 | 63 < d ≤100 | 100 < d ≤ 150 | 150 < d ≤ 250 |
| St 37-2 (1.0037) | 26 | 25 | 24 | 22 | 21 |
DIN 1.0037 (material St37-2) equivalent to US ASTM AISI SAE, European standard EN, British standard BSI, France standard NF, ISO standard, Japanese standard JIS, Chinese GB standard and Indian IS standard. (For reference)
Steel St37 data sheet – 7
| St37 Equivalent grade | |||||||||||||||||
| German | US | European Union | UK | France | Japan | China | India | ISO | |||||||||
| Standard | Steel (Steel number) | Standard | Steel | Standard | Steel (Steel number) | Standard | Steel | Standard | Steel | Standard | Steel | Standard | Steel | Standard | Steel | Standard | Steel |
| DIN 17100: 1980 (EN 10025: 1993) | St 37-2 (1.0037) |
ASTM A36; ASTM A283/A283M |
A36; Grade D |
EN 10025-2: 2005 | S235JR (1.0038) | BS 4360 | 40B | NF A35-501 | E24-2 |
JIS G3101; JIS G3106 |
SS400; SM400A |
GB/T 700 | |||||