St52 steel (St52-3) is an unalloyed structural steel grade complies with DIN 17100: 1980, the designation has been discarded since 2004. According to German standard DIN 17100, St52 steel is divided into St52-3U (1.0553) and St52-3N (1.0570 material). St 52 material new designation is S355, St52-3 new name is S355J2 (1.0577), St52-3 U new designation is S355J0 (1.0553), and St52-3 N new name in EN 10025: 1993 is S355J2G3, DIN 17100 has been replaced by EN 10025-2: 2004.
The St 52 material datasheet and specification such as chemical composition, properties and equivalents can be found in the following tables.
The following tables show St52 chemical composition.
St52 steel data sheet – 1, Chemical composition (ladle analysis) according to DIN 17100 and DIN EN 10025: 1993.
| Chemical Composition (ladle analysis), %, ≤ | |||||||||||
| Country (Region) | Standard | Steel Grade (Steel number) | C | Si | Mn | P | S | N | Cu | Thickness (d) (mm) | Method of deoxidation |
| Germany | DIN 17100: 1980 | St52-3 (1.0570) | 0.20 | 0.55 | 1.60 | 0.040 | 0.040 | – | ≤ 30 | Fully Killded | |
| 0.22 |
30 | ||||||||||
| European Union | EN 10025: 1993 | S355J2G3 (1.0570) | 0.20 | 0.55 | 1.60 | 0.035 | 0.035 | – | ≤ 30 | ||
| 0.22 |
30 | ||||||||||
| EN 10025-2: 2004 | S355J2 (1.0577) | 0.20 | 0.55 | 1.60 | 0.025 | 0.025 | – | 0.55 | ≤ 30 | ||
| 0.22 |
30 | ||||||||||
St52 steel data sheet – 2, Chemical composition (product analysis) according to DIN 17100 and DIN EN 10025: 1993.
| Chemical Composition (product analysis), %, ≤ | |||||||||||
| Country (Region) | Standard | Steel Grade (Steel number) | C | Si | Mn | P | S | N | Cu | Thickness (d) (mm) | Method of deoxidation |
| Germany | DIN 17100: 1980 | St52-3 (1.0570) | 0.22 | 0.60 | 1.70 | 0.065 | 0.065 | – | ≤ 30 | Fully Killded | |
| 0.24 |
30 | ||||||||||
| European Union | EN 10025: 1993 | S355J2G3 (1.0570) | 0.22 | 0.60 | 1.70 | 0.045 | 0.045 | – | ≤ 30 | ||
| 0.24 |
30 | ||||||||||
| EN 10025-2: 2004 | S355J2 (1.0577) | 0.22 | 0.60 | 1.70 | 0.035 | 0.035 | – | 0.60 | ≤ 30 | ||
| 0.24 |
30 | ||||||||||
The datasheet below shows St52 steel yield strength, tensile strength, elongation and impact resistance.
Yield Strength
Material St 52-3 Datasheet – 3
| Yield strength (≥ N/mm2); Thickness (d) mm | ||||||
| Steel (Steel number) | d≤16 | 16< d ≤40 | 40< d ≤63 | 63< d ≤80 | 80< d ≤100 | >100 |
| St52-3 | 355 | 345 | 335 | 325 | 315 | by agreement |
Tensile Strength
Material St 52-3 Datasheet – 4
| Tensile strength (≥ N/mm2); Thickness (d) mm | |||
| Steel (Steel number) | d<3 | 3 ≤ d ≤ 100 | >100 |
| St 52-3 | 515-680 | 490-630 | by agreement |
Note: 1MPa = 1N/mm2
Elongation
Material St 52-3 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 |
| St52-3U | 14 | 15 | 16 | 17 | 18 |
| St52-3N | 12 | 13 | 14 | 15 | 16 |
| Elongation (≥, %); Thickness (d), mm | ||||
| Steel (Steel number) | 3 ≤d ≤40 | 40< d ≤63 | 63 < d ≤100 | >100 |
| St52-3 | 22 | 21 | 20 | by agreement |
| St52-3N | 20 | 19 | 18 | |
Material St52 steel equivalent to American 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)
| St52 equivalent material | |||||||||||||||||
| Germany | US | European Union | UK | France | Japan | China | India | ISO | |||||||||
| Standard | Steel | Standard | Steel | Standard | Steel (Steel number) | Standard | Steel | Standard | Steel | Standard | Steel | Standard | Steel | Standard | Steel | Standard | Steel |
| DIN 17100: 1980 | St 52 | ASTM A572/A572M | Grade 50 | EN 10025-2: 2005 | S355 | GB/T 1591 | Q345; Q355 | IS 2062 | E350 | ||||||||
| St 52-3 | S355J2 (1.0577) | JIS G3135 | SPFC590 | Q355C; Q345C | ISO 630-2 | S355C | |||||||||||
| St 52-3U | S355J0 (1.0553) | BS 4360 | 50C | NF A35-501 | E36-3 | ||||||||||||