ASTM A572 Güte 50: Hoch-Strength Niedrig-Alloy Structural Stahl
ASTM A572/A572M · Published: 2026-06-03 · Updated: July 2026
ASTM A572 Grade 50 is a high-strength low-alloy (HSLA) structural steel with a 345 MPa minimum yield — approximately 38% stronger than A36. It is the standard material for bridge construction, heavy structural frames, and rolled sections where...
ASTM A572 Güte 50 ist ein hoch-strength niedrig-alloy (HSLA) structural steel mit ein 345 MPa minimum yield — approximately 38% stronger als A36. Es ist der standard material für bridge construction, heavy structural frames, und rolled sections wo weight savings justify der modest kosten premium.
Quick Facts
| Kategorie | Kohlenstoffstahl |
| Norm | ASTM A572/A572M |
| Density | 7.85 g/cm³ |
| Yield Strength | 345 MPa (50 ksi) |
| Tensile Strength | 450-620 MPa |
Global Equivalents & Cross-Reference
Heat Treatment & Processing
| Normalizing | 870-900°C, luft cool |
| Stress Relieving | 595-650°C, 1h/25mm |
| Hinweis | A572 Gr 50 ist typically used in als-rolled condition. Heat treatment ist uncommon für structural applications. |
Welding & Fabrication
| Preheat | Nicht erforderlich <20mm; 50-100°C für 20-40mm |
| Filler Metal | E7018 (SMAW), ER70S-6 (GMAW) |
| Interpass Temp | Max 315°C |
| Schweißeignung Rating | Excellent — similar zu A36 |
Verwandt Materials
🧮 Material Weight Calculator
Calculate the weight based on this material's density: 7.85 g/cm³
Frequently Asked Questions
Können A572 Güte 50 ersetzen A36?
Ja, A572 Gr 50 können ersetzen A36 in meiste structural applications, offering weight savings durch der verwenden von thinner sections. However, der higher strength comes mit reduced ductility — A572 Gr 50 elongation ist typically 18% vs A36's 20%.
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu