Talk to a weaponry alloy expert
Mission-critical metals to build next-generation weapons
Your allies in alloys
Materials you can count on
Carpenter Technology has been producing superior firepower since our armor-piercing alloys helped win the Spanish-American war in 1898. Our legacy metals and novel chemistries continue that tradition, offering manufacturers an exclusive strategic advantage.
Cutting-edge metals
Proven legacy alloys
Novel alloys engineered to withstand the demands
of today’s weaponry.
Cutting-edge metals
A-21 is the world’s first and only truly stainless carburizing steel. In the carburized and heat treated condition, it remains rust-free after 200-hour exposure to salt fog (ASTM B117).
Rust buster
Explore advanced weaponry
Download the white paper
A-21® is the first and only truly stainless carburizing steel, with industry-leading corrosion resistance and toughness for knife blades and rifle barrels
GNB200 is a premium hammer forgeable rifle barrel alloy specifically formulated for next-level strength and toughness in high-temperature applications.
READ MORE
A-21®
Advanced martensitic stainless steel for blades and barrels
Bedrock materials specified by manufacturers year after year.
416R stainless for rifle barrels and pistol slides.
416 Forge Quality stainless for revolver frames
410 MODIFIED stainless for revolver cylinders and gun barrels.
READ MORE
Download the DATASHEET
WATCH THE WEBINAR
Conventional carburized
stainless steel (62 HRC)
Carburized A-21 (62 HRC)
Rapid-fire impact strength.
Hammer forgeable.
GNB200
Download the white paper
WATCH THE WEBINAR
Download the DATASHEET
Superior materials for superior weaponry
TALK TO AN EXPERT
Cutting-edge metals
Proven legacy alloys
CHAT WITH A WEAPONRY
ALLOY EXPERT
CHAT WITH A WEAPONRY
ALLOY EXPERT
Carpenter 158 chrome-nickel alloy steel for rifle bolts.
Materials engineered for a new class of weaponry
A-21®
Advanced martensitic stainless steel for blades and barrels
Razor-sharp edges. Tough at any temperature. A-21 stainless carburizing steel was built for applications that require excellent corrosion resistance, high strength, and good toughness, as well as cutlery applications that require excellent edge retention, high hardness, and stainless properties. A-21 is an upgrade in corrosion resistance and toughness at similar strength levels relative to 410 MODIFIED and 416 MOD LOW SULFUR.
GNB200
Remelted steel for best-in-class
high strength rifle barrels
Rapid-fire impact strength. Hammer forgeable. GNB200 is a high strength, low alloy vacuum arc remelted steel with an excellent combination of strength, impact strength at -40°F, and high-temperature temper resistance. With 41V50 as its base, GNB200 has a superior combination of strength, toughness, superior microstructural cleanliness, and controlled microstructure.
Cutting-edge metals
Tried-and-true materials
Proven legacy alloys
416
Stainless steel for revolver, rifle, and pistol components
Built to last. Carpenter Technology metallurgists invented 416 in 1924. The first free-machining stainless steel, 416 had — and still has — an enormous impact on global manufacturing. The addition of sulfur to this high-chromium, corrosion-resisting steel gives it easy machining properties, and the original formulation of 416 is still being made and used today.
For advanced weaponry, 416R is specified for rifle barrels and pistol slides, while 416 Forge Quality is
ideal for revolver frames.
Download the DATASHEET
410 MODIFIED
Stainless steel for revolver cylinders and gun barrels
Can take the heat. 410 MODIFIED is a hardenable martensitic stainless steel suitable for highly stressed parts where corrosion resistance, good strength,
and ductility are needed. This alloy can be used up
to 1200°F (649°C) where resistance to scaling and oxidation is required.
Download the DATASHEET
Download the DATASHEET
American made. Military grade.
CARPENTER 158
Case-hardened steel for rifle bolts
Hard core strength. Carpenter 158 is a chrome-nickel alloy steel engineered for parts subject to heavy shock and wear. Fully treated, Carpenter 158 attains a core strength of approximately 160 ksi (1103 MPa) tensile strength with a yield point of approximately
135 ksi (931 MPa).
Download the DATASHEET
Carpenter 158 chrome-nickel alloy steel for rifle bolts.
Remelted steel for best-in-class
rifle barrels
Advanced martensitic stainless steel for blades and barrels
Razor-sharp edges. Tough at any temperature. A-21 stainless carburizing steel was built for applications that require excellent corrosion resistance, high strength, and good toughness, as well as cutlery applications that require excellent edge retention, high hardness, and stainless properties. A-21 is an upgrade in corrosion resistance and toughness at similar strength levels relative to 410 MODIFIED and 416 MOD LOW SULFUR.
Materials engineered for a new class of weaponry
CUTTING-EDGE
METALS
Advanced martensitic stainless steel for blades and barrels
A-21®
Built to last. Carpenter Technology metallurgists invented 416 in 1924. The first free-machining stainless steel, 416 had — and still has — an enormous impact on global manufacturing. The addition of sulfur to this high-chromium, corrosion-resisting steel gives it easy machining properties, and the original formulation of 416 is still being made and used today.
For advanced weaponry, 416R is specified for rifle barrels
and pistol slides, while 416 Forge Quality is ideal for
revolver frames.
Stainless steel for revolver, rifle,
and pistol components
416
Hard core strength. Carpenter 158 is a chrome-nickel alloy steel engineered for parts subject to heavy shock and wear. Fully treated, Carpenter 158 attains a core strength of approximately 160 ksi (1103 MPa) tensile strength with a yield point of approximately 135 ksi (931 MPa).
Superior materials for superior weaponry
Tried-and-true materials
A-21® is the first and only truly stainless carburizing steel, with industry-leading corrosion resistance and toughness for knife blades and rifle barrels
GNB200 is a premium hammer forgeable rifle barrel alloy specifically formulated for next-level strength and toughness in high-temperature applications.
Novel alloys engineered to withstand the demands of today’s weaponry.