Skip to content
Fighter jet flying leftward through the frame on a cloudy sky

AEROSPACE & DEFENSE

ABOUT

Sullivan Steel’s products are well-suited for parts in the aeronautical, space, weapons, and defense sub-industries. Material in related applications must exhibit exceptional tensile and yield strength, high fatigue and fracture resistance, thermal stability, and superb corrosion resistance. These performance characteristics are non-negotiable for steel components with high-stakes functions like actuation, power transmission and more.

APPLICATIONS

ACTUATION

Flight control mechanisms, landing gear, braking systems, and hydraulics are essential components often faced with high loads and cyclic fatigue, requiring high strength and wear resistance.
View of a plane's deployed landing gear hydraulics

POWER TRANSMISSION

Gearboxes, drive systems, and rotor shafts deliver torque transfer under high stress, high heat, and rotational speed. Steel in these components must exhibit high core toughness, surface hardness, and fatigue resistance.
Up-close shot of a helicopter rotor system

POWER GENERATION

Jet engines, bearing supports, and power units require tremendous thermal operability, as well as high creep and corrosion resistance.
Outside of a white jet plane engine

VALVES

Hydraulic control valves and fuel delivery systems endure extreme pressure, vibrational forces, and highly corrosive environments; they need steel that is both corrosion and abrasion resistant.
Side view of twin airplane engines

SPACE

Parts used in space applications face vacuum conditions and thermal extremes, making maintenance difficult or impossible. Steel in related components must exhibit high cleanliness and heat resistance while preventing corrosion and fatigue.
White rocket launching at night surrounded by clouds

AEROSPACE & DEFENSE PRODUCTS

High Temperature High temperature
Stainless Stainless
Through-hardened Through-hardened
Nitriding Nitriding
Carburizing Carburizing
Induction Induction

52100

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar, Tube, Wire
AMS 6440, 6444
High-carbon, deep-hardening bearing steel.
view product
view product

8620

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 6274
Carburizing, case-hardening low alloy bearing steel.
view product
view product

9310

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 6260, 6265
Premium carburizing bearing and gear steel.
view product
view product

Jethete M152

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 5719 Type 2
High strength, stainless, creep-resistant steel.
view product
view product

Nitriding 135M

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 6470, 6471
High strength, low alloy nitriding steel.
view product
view product

M50

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar, Wire
AMS 6490, 6491
Premium high-temperature bearing steel.
view product
view product

M50NiL

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 6278
Carburizing, low carbon, high-nickel M50 variant.
view product
view product

CX13VDW

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 5719 Type 2
Distortion-resistant carburizing stainless steel.
view product
view product

440C

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar, Wire
AMS 5880, 5630, 5618
Deep-hardening, carbon-chromium stainless steel.
view product
view product

XD16N

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar, Wire
AMS 5926
High-nitrogen, high-temperature stainless steel.
view product
view product

XD15NW

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar, Wire
AMS 5925
Remelted high-nitrogen, corrosion-resistant steel.
view product
view product

N360

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 5898
High-nitrogen, high toughness stainless steel.
view product
view product

BG-42

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar, Wire
AMS 5749
Remelted high-speed, high-performance stainless steel.
view product
view product

4340

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar, Tube
AMS 6414, 6415
Case-hardening, high ductility and strength steel.
view product
view product

NC310YW

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 6499
Through-hardening and surface carburizable steel.
view product
view product

Greek Ascoloy

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 5616
Creep, heat, and corrosion resistant stainless steel.
view product
view product

A-21

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS Pending
Advanced martensitic, carburizing stainless steel.
view product
view product

GKHW

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 6481 (VIM-VAR only)
High-performance, nitriding stainless steel.
view product
view product

GKPYW

High Temperature
Stainless
Through Hardened
Nitriding
Carburizing
Induction
Bar
AMS 6498
Deep-nitriding, impact resistant, high strength steel.
view product
view product