Stainless Steel Grade 440C: forms, specifications and uses
Stainless Steel Grade 440C (UNS S44004) is a high carbon martensitic stainless steel that demonstrates high strength, moderate corrosion resistance, and good hardness and wear resistance.
Titanium Industries offers Stainless Steel Grade 440C Round Bar from its locations.
Stainless Steel Grade 440C is supplied to specifications including AMS 5630, AMS 5880, AMS-QQ-S-763, ASTM A276 and ASTM F899.
Typical uses of Stainless Steel Grade 440C include ball bearings, valves, measuring tools and instruments, surgical blades, knife blades and cutting tools.
For Stainless Steel Grade 440C, request a quote online or contact your nearest Titanium Industries location. Alloy data on this page is for reference only, not for design.
Stainless Steel Grade 440C | UNS# S44004 is a high carbon martensitic stainless steel that demonstrates high strength, moderate corrosion resistance, and good hardness and wear resistance. The highest resistances for type 440C can be achieved by hardening and polishing which make this material ideal for cutting instrumentation, surgical blades, and knife blades. Because of these traits it is also common to find type 440C in ball bearings, valves, and measuring instruments.
Stainless Steel Grade 440C Specifications:
Stainless Steel Type 440C product forms offered at all Titanium Industries' locations:
Stainless Steel Grade 440C Applications:
- Ball Bearings
- Valves
- Measuring Tools and Instruments
- Surgical Blades
- Knife Blades
- Cutting Tools
DISCLAIMER: Alloy data sheets are for reference only, not for design purposes.
| Chemical Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Fe 79.15% | Cr 17.0% | Mn 1.0% | C 1.10% | Si 1.0% | |||||
| Mo 0.75% | |||||||||
| PHYSICAL PROPERTIES | ||||||
|---|---|---|---|---|---|---|
| Density | Electrical conductivity (% IACS) | Thermal conductivity (BTU-in/hr-ft²-°F) | Specific heat capacity | Thermal expansion (1/°F) | Melting Point (°F) | |
| 0.282 | 2.87 | 168 | 0.11 | 0.00000567 | 2700 | |
| Mechanical Properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Property | Minimum | Maximum | |||||||
| Yield Strength Range (Rp0.2 Offset) (ksi) | 60.9 | 276 | |||||||
| Tensile Strength Range (Rm) (ksi) | 110 | 286 | |||||||
| Elongation (AL=5 x Ø) | 2.0% | 15.0% | |||||||
| Brinell Hardness (H) | 240 | 580 | |||||||
| Modulus of Elasticity (ksi) (E): 30400 | |||||||||
| Machineability General Index: 40% | |||||||||
Stainless Steel Grade 440C: questions and answers
What is Stainless Steel Grade 440C?
What is Stainless Steel Grade 440C?
Stainless Steel Grade 440C (UNS S44004) is a high carbon martensitic stainless steel that demonstrates high strength, moderate corrosion resistance, and good hardness and wear resistance.
Which Stainless Steel Grade 440C product forms does Titanium Industries stock?
Which Stainless Steel Grade 440C product forms does Titanium Industries stock?
Stainless Steel Grade 440C Round Bar.
Which specifications does Stainless Steel Grade 440C meet?
Which specifications does Stainless Steel Grade 440C meet?
AMS 5630, AMS 5880, AMS-QQ-S-763, ASTM A276 and ASTM F899.
What is Stainless Steel Grade 440C used for?
What is Stainless Steel Grade 440C used for?
Ball bearings, valves, measuring tools and instruments, surgical blades, knife blades and cutting tools.