Aluminum 7075-T7351: Stress-Relieved Aerospace Alloy für Thick Sections
AMS 4050 · Published: 2026-06-03 · Updated: July 2026
Aluminum 7075-T7351 is a special over-aged temper of the 7075 alloy designed to provide superior stress corrosion cracking (SCC) resistance in thick sections — at a 10-15% strength reduction vs the T651 temper. It is specified for aircraft...
Aluminum 7075-T7351 ist ein special über-aged temper von der 7075 alloy designed zu bereitstellen superior stress corrosion cracking (SCC) widerstand in thick sections — bei ein 10-15% strength reduction vs der T651 temper. Es ist specified für aircraft structural bulkheads, wing spars, und andere thick-abschnitt components wo SCC widerstand ist kritisch.
Quick Facts
| Kategorie | Aluminum Alloy |
| Norm | AMS 4050 |
| Density | 2.81 g/cm³ |
| Yield Strength | 434 MPa |
| Tensile Strength | 503 MPa |
Global Equivalents & Cross-Reference
Verwandt Materials
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Frequently Asked Questions
Warum choose T7351 über T651 für 7075?
T651 provides maximum strength (572 MPa ultimate) but ist susceptible zu stress corrosion cracking in der kurz-transverse direction für sections über 25mm. T7351 sacrifices ~10% strength zu dramatically improve SCC widerstand, making es der erforderlich temper für thick aerospace structural components.
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