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Business Type | Manufacturer, Exporter, Supplier, Retailer, Wholesaler |
Material | Stainless Steel |
Shape | Rectangular, Square |
Thickness | 100-200mm, 200-300mm, 400-500mm |
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Preferred Buyer From
Location | India, Kuwait, Oman, Saudi Arabia, Turkey |
Product Details
Applications:
Heat Treatment:
Welding:-If welding is necessary pre-heat at 250°C and follow welding with a full anneal. Grade 420 filler will give a high hardness weld (although not as high as the 440C), but 309 or 310 will produce soft welds with higher ductility.
Composition
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
440C | min. max. | 0.95 1.20 | -1 | -1 | -0.04 | -0.03 | 16.00 18.00 | -0.75 | - | - |
Mechanical Properties
Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell (HR C) | Impact Charpy V (J) |
Annealed* | 758 | 448 | 14 | 269HB max# | - |
204 | 2030 | 1900 | 4 | 59 | 9 |
260 | 1960 | 1830 | 4 | 57 | 9 |
316 | 1860 | 1740 | 4 | 56 | 9 |
371 | 1790 | 1660 | 4 | 56 | 9 |
* Annealed properties are typical for Condition A of ASTM A276# Brinell Hardness is ASTM A276 specified maximum for annealed 440A, B and C. |
Physical Properties
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (mm/m/°C) | Thermal Conductivity(W/m.K) | Specific Heat 0-100°C (J/kg.K) |
Electrical Resistivity (nW.m) | |||
0-100°C | 0-200°C | 0-600°C | at 100°C | at 500°C | |||||
440 C | 7650 | 200 | 10.1 | 10.3 | 11.7 | 24.2 | - | 460 | 600 |
Alternative Grades
Grade | Why it might be chosen instead of 440C |
440A/B | Slightly softer and more corrosion resistant grade needed |
440F | High machinability required, with same hardness and hardenability as 440C |
420 | Lower strength and hardness needed than any of the 440 Grades |
416 | Higher machinability required, and the much lower hardness and strength is still adequate |