347 Stainless Steel per AMS 5674
AMS 5674 includes 347 stainless steel wire that’s solution heat-treated and suitable for jobs that demand corrosion and heat resistance combined with exceptional ductility, strength, and oxidation resistance.
Type 347 stainless steel is an austenitic chromium-nickel alloy that’s stabilized by columbium and tantalum additions. This helps prevent intergranular corrosion and carbide precipitation when subjected to high temperatures or post-weld heat treatment, and AMS 5674 is a good choice for aircraft engine parts, high temperature fasteners, and exhaust components.
AMS 5674 applicaitons
AMS 5674 is used in :
- Aircraft exhaust systems and engine manifolds
- High-temperature fasteners and springs
- Chemical refinery heating elements
- Gas turbine and heat exchanger wire assemblies
- Marine engine and propulsion support components
What is 347 Stainless Steel ?
347 stainless steel is an austenitic stainless steel stabilized by additions of columbium (plus tantalum) and has slightly improved corrosion resistance over type 321 stainless steel in strongly oxidizing environments. It is preferable for aqueous and low-temperature environments due to its good resistance to intergranular attack. Both 347 and 321 offer good resistance to polythionic acid stress corrosion cracking, encountered in oil refineries.
347 STAINLESS STEEL SPECIFICATIONS
SHEET SOLUTION HEAT TREATED
Annealed sheets offering excellent corrosion resistance and formability for demanding applications.
TUBING
Precision tubes designed for corrosion resistance and mechanical reliability in fluid systems.
BARS & FORGINGS
High-quality bars and forgings suitable for structural, machined, and high-stress components.
FEDERAL & MILITARY SPECIFICATIONS
Government-certified sheets ensuring performance and durability under critical service conditions.
OIL & GAS
Materials engineered to withstand sour gas, chloride stress, and harsh operating environments.
Certified Material for Critical Service
Fighter Jet Metals supplies AMS- and ASTM-certified 347 Stainless Steel, ensuring compliance with aerospace and defense quality requirements.
Each heat lot is traceable and accompanied by full material certification, mechanical test results, and chemical analysis documentation.
Our materials meet the standards for critical service applications in aerospace, power generation, and high-temperature industrial operations.