AMS 6488
Alloy Steel Grade: AISI H-11
Product Forms: Steel, Bars and Forgings
Scope: This specification covers a low-alloy steel in the form of bars, forgings, and forging stock.
These products have been used typically for parts requiring a steel capable of through-hardening to a minimum hardness of 50 HRC in section thicknesses up to 12 inches (305 mm) with relatively high levels of strength, fatigue resistance, ductility, and thermal stability in service from -100 degrees to +1000 degrees F (-73 degrees to +538 degrees C), but usage is not limited to such applications.
Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking after heat treatment; SAE ARP 1110 recommends practices to minimize such conditions.
Product availability:
DISCLAIMER: The use of this information should be considered strictly voluntary. Information contained in this page or across the domain, may contain typographical errors and are for reference only. Information presented are purely generalizations and are not a substitution for AMS specifications.
DISCLAIMER: Alloy data sheets are for reference only, not for design purposes.
| Chemical Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Fe 96.0% | Ni 1.90% | Cr 0.80% | Mn 0.70% | C 0.40% | |||||
| Mo 0.25% | Si 0.25% | S 0.04% | P 0.04% | ||||||
| Mechanical Properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Tensile Strength: 108 – 161 ksi | Yield Strength: 68.8 – 125 ksi | Elongation: 12.2 – 22.0% | |||||||
Tensile properties and associated requirements vary due to orientation, section thickness, and engineering requirements.
T.I. Approvals:
Plus a wide range of approvals from most leading OEM’s across Aerospace, Medical, Industrial, and Oil and Gas markets.