General Information
Chemical Composition
Physical Properties
Mechanical Properties
General Information
Grade 440 stainless steels exhibit excellent resistance to mild acids, alkalis, foods, fresh water and air. A smooth polished surface also helps grade 440 steels resist corrosion in tempered, passivated and hardened conditions. All three forms of grade 440 steels are commonly used. However, grade 440C is more readily available than the other standard grades. Grade 440F, a free-machining type of grade 440 series, is also available with a high carbon content similar to that of grade 440C. Martensitic steel grades are high-hardness steels, usually fabricated using techniques that require hardening and tempering treatments.
Grade 440C stainless steels are high carbon steels, which attain the highest hardness, wear resistance and strength of all stainless steel grades after heat treatment. These properties make this grade suitable for applications such as valve components and ball bearings. Grade 440A and 440B stainless steels, on the other hand, have similar properties – except for a slightly lower percentage of carbon in grade 440A.
Features
- Hardenable chromium steel
- High strength
- High wear resistance
Standard Inventory Specifications
- UNS S44004
- AMS 5630 Chem Only
- ASTM: A480
Common Trade Names
- 440C Surgical Steel
Common Applications of 440C
- Cutting Instruments
- Knife Blades
- Surgical Instruments
- Chisels
- Measuring instruments
- Ball Bearings and Valves
Chemical Composition
Chemical Properties of 440C Stainless Steel
Element
Percent by Weight
C
Carbon
1.20%
Cr
Chromium
18%
Mn
Manganese
1%
Mo
Molybdenum
0.75
P
Phosphorous
0.04
Si
Silicon
1%
S
Sulfur
0.030%
Physical Properties
Physical Properties of 440C Stainless Steel
| Density kg/mᶟ | 7650 |
| Thermal Conductivity at 212°F (100°C) | 24.2 |
| Thermal Conductivity at 932°F (500°C) | – |
| Electrical Resistivity | 600 |
| Elastic Modulus (Gpa) | 200 |
Mechanical Properties
Mechanical Properties of 440C Stainless Steel
| ANNEALED | ||
| Yield Strength 0.2% Proof (Mpa) | 448 | |
| Tensile Strength (Mpa) | 75 | |
| Elongation (% in 50mm) | 14 | |
| Hardness (HB) | 269 max |
|
440C Seamless Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: OD: Φ4-Φ1219mm; WT:…
Introduction: Wisine its production capacity of stainless steel seamless pipe, roughly 2100 tons per month. As per your requirement…
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440C Sanitary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: OD: Φ8-Φ850mm; WT:…
Introduction: Wisine produces sanitary tubes that are widely applicable to food & beverage industry, pharmaceutical industry…
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440C Thick-walled Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: OD: Φ10-Φ1219mm; WT:…
Introduction: Thick-walled stainless steel pipe, also named stainless steel hollow bar, are usually used for mechanical applications or…
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440C Welded Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: OD: Φ6-Φ2800mm; WT:…
Introduction: Wisine produces welded stainless steel pipe in different shapes: round, square and rectangle. In comparison with seamless pipe…
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440C Square Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Side Length: 4×4-300×300mm…
Introduction: As per your requirement, stainless steel square pipe can be made into welded stainless steel square pipe or…
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440C Rectangle Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Side Length: 4×6-200×400…
Introduction: Stainless steel rectangle pipe is hollow stainless steel long product and can be classified into seamless and welded…
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440C Capillary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: OD: Φ0.4-Φ16.0mm; WT:…
Introduction: Wisine produces stainless steel capillary with different finishes for your option. Quite common in our international markets…
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440C Coil Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: OD: Φ0.4-Φ16mm; WT:…
Introduction: Stainless steel coil tubes refer to those tubes with diameter ranging from 0.5mm to 20mm and wall thickness from…
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440C Elbow
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Outer Diameter: DN15 – DN600…
Wall Thickness: Sch5S- Sch160…
Classification: 45° elbow, 90° elbow, 180° elbow, long radius elbow, short radius elbow…
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440C Flange
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Outer Diameter: DN6 – DN750…
Wall Thickness: Sch5S-Sch160S…
Classification: SW (Socket Welding) flange, WN (Welding Neck) flange, SO (Slip-On) flange…
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440C Tee
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Outer Diameter: DN15 – DN750…
Wall Thickness: Sch5S-Sch160…
Classification: Straight tee, reducing tee…
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440C Cross
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S-Sch160…
Classification: Straight cross, reducing cross…
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440C Reducer
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Outer Diameter: DN15 – DN500…
Wall Thickness: Sch5S-Sch160…
Classification: Concentric reducer, eccentric reducer…
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440C Pipe Cap
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S- Sch160…
Classification: Hemispherical cap, elliptical/oval cap, dish cap, spherical cap…
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440C Round Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Diameter: 2mm – 600mm…
Introduction: Stainless steel round bars are categorized as both long products and bar materials. SS round bar is long stainless steel product…
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440C Flat Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Thickness: 0.5mm – 200mm…
Introduction: Stainless steel flat bars are of rectangle shape with root face (or round edges) and they can be semi-finished or finished…
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440C Angle Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Equal Angle Bar Dimensions…
Introduction: Stainless steel angle bars are L-shape bars with two side widths perpendicular to each other. The two widths can be equal…
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440C Square Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Dimensions: 2mmx2mm – …
Introduction: Stainless steel square bars are long stainless steel products with its cross section as square. At Wisine, we produce SS square…
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440C Hexagon Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Dimension: 3mm – 180mm…
Introduction: Stainless steel hex bar is solid stainless steel long product with its cross section as hexagonal. Wisine produce stainless…
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440C Channel Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Hot Rolled: 40mmx80mmx…
Introduction: Stainless steel channel bar is stainless steel long product with its section as U shape. At Wisine, apart from stainless steel…
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440C Sheet
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Thickness: ≤ 5mm…
Introduction: In Wisine, we refer to thickness below 5mm as stainless steel sheets and thickness above 5mm as SS plates…
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440C Plate
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Thickness: ≥ 5mm…
Introduction: In Wisine, we regard thickness above (includes) 5mm as stainless steel plates. Our stainless steel plates are hot rolled…
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440C Coil
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Width: ≥ 610mm…
Introduction: Our stainless steel coils are primary quality coils from the origin of Baosteel, ZPSS, TISCO, JISCO, ATI, SMC, HAYNES…
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440C Strip
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Width: ≤ 610mm…
Introduction: Stainless steel strip has its width less than 610mm, with its thickness ranging from 0.02mm to 6mm. For width over 610mm…
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440C Wire
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Diameter: 0.02mm-25mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…
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440C Wire Rod
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Diameter: Hot rolled wire rod:…
Weight: ≤500Kg per roll
Tolerance: H9, H11
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440C Wire Rope
Standard: ASTM, JIS, DIN, EU…
Grade: 440C…
Size: Φ0.15mm-Φ50mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…
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