316L stainless steel
It is a low-carbon variant of the 316 stainless steel, which is part of the austenitic family of stainless steels.
Descriptions
1. Chemical Composition
The chemical composition of 316L stainless steel is critical to its performance. Below is a detailed table of its chemical composition:
| Element | Composition (%） |
| Carbon (C) | ≤0.03 |
| Manganese (Mn) | ≤2.00 |
| Silicon (Si) | ≤1.00 |
| Phosphorus (P) | ≤0.045 |
| Sulfur (S) | ≤0.030 |
| Chromium (Cr) | 16.00-18.00 |
| Nickel (Ni) | 10.00-14.00 |
| Molybdenum (Mo) | 2.00-3.00 |
| Iron (Fe) | Balance |
2. Mechanical Properties
The mechanical properties of 316L stainless steel forgings are essential for determining their suitability for various applications. The following table provides detailed mechanical properties:
| Property | Value |
| Tensile Strength | 485 MPa(70,000 psi) |
| Yield Strength(0.2% offset) | 170 MPa (25,000 psi) |
| Elongation in 50 mm | 40% |
| Hardness (Brinell) | 217 max |
| Modulus of Elasticity | 193 GPa (28 x 10^6 psi) |
| Density | 8.00 g/cm³(0.289 1b/in³) |
| Melting Range | 1375-1400℃(2507-2552°F) |
3. Common Forging Product
Forged Flanges
Forged Fittings
Forged Bars
Forged Shafts
Forged Valves
4. Industry standards
ASTM A182/A182M: Standard specification for forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves and parts for high-temperature service.
ASTM A473: Standard specification for stainless steel forgings.
ASME SA182/SA182M: Similar to ASTM A182 but specifically for ASME Boiler and Pressure Vessel Code applications.
EN 10250-4: Open die steel forgings for general engineering purposes – Part 4: Stainless steels.
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Applications
Non-critical structural parts and fittings.
: Shafts, valve components, and fasteners.
Gears, couplings, and pump components.
