4340 Low Alloy Steel
4340 is a low alloy steel with ultra high strength melted as AOD + VAR or VIM + VAR product. It also possessed good toughness and fatigue strength when heat treated. This alloy also displays excellent transverse properties even in larger cross sections. These properties along with the cleanliness of VAR remelting make this alloy an excellent candidate for aerospace applications.
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- AMS 6414
- AMS 6409
- AMS 6415
- AMS 6484
- Barden SA 3880
- Bell 299-947-055
- Bell 299-947-335
- Boeing BMS 7-28
- McDonnel Douglas DMS-1555
- Sikorsky Aircraft SS9702 (capability)
- NHBB PES 1.114
- AMS STD 2154
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- Pratt Whitney LCS
- GE S-400 S-1000
- Lockheed Martin approval to AMS 6414 and 6415
- Safran - Messier Dowty approval to AMS 6414 and AMS 6409
- New Hampshire Ball Bearing approval to NHBB PES 1.114
- Bombardier Approval to AMS 6414
Don't see the approval you're looking for? Not all approvals are listed so please submit an inquiry!
- UNS G43406
- AISI E4340
- Din 1.6562
- JIS 40NiCrMo7
- Low Alloy Steels
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