ASTM A240/A240M 316L Introduce
ASTM A240/A240M 316L provides the requirements for a wide range of products, ranging from general purpose to stress relieved pressure vessels and related components. It also provides requirements for flat-rolled and cold-rolled sheet, strip and strip-maps, coils, and plates. The specification includes requirements for chemical composition, surface quality, final heat treatment, physical and mechanical properties, heat-resistance, shop surface finishing, and packaging.
Smelting temperature:1416°C - 1246°C
Application:Heat-resistant chrome and chrome-nickel stainless steel sheets, sheets and strips for pressure vessels
ASTM A240/A240M 316L Material Chemical Composition
The chemical composition of the ASTM A240/A240M 316L steel are as follows:
| Element | Min | Max |
|---|---|---|
| Nitrogen (N) | - | 0.1000 |
| Molybdenum (Mo) | 2.0000 | 3.0000 |
| Nickel (Ni) | 10.0000 | 14.0000 |
| Chromium (Cr) | 16.0000 | 18.0000 |
| PhOsphorus (P) | - | 0.0450 |
| Sulfur (S) | - | 0.0300 |
| Manganese (Mn) | - | 2.0000 |
| Silicon (Si) | - | 0.7500 |
| Carbon (C) | - | 0.0300 |
ASTM A240/A240M 316L Material Mechanical Properties
ASTM A240/A240M 316L steel is comprised of various alloys and has a specific chemical composition which makes it ideal for several applications. The chemical composition of this type of steel typically includes carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, and molybdenum, but may also contain other elements in trace amounts. Each of these elements contributes to the mechanical properties in different ways.
The mechanical properties of the ASTM A240/A240M 316L steel are as follows:
| YieldRp0.2 | ≤ 643 (MPa) |
| TeileRm | ≤ 939 (MPa) |
| ImpactKV/Ku | 14(J) |
| ElongationA | 44% |
| Reduction in cross section on fractureZ | 13% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 112 |
ASTM A240/A240M 316L Material Thermal Properties
The thermal performance parameters of the ASTM A240/A240M 316L steel are as follows:
| Temperature (°C) | 43 | 541 | 333 |
| Modulus of elasticity (GPa) | - | 572 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 12.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 142 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.43 | - | - |
| Deity (kg/dm³) | - | - | 442 |
| Poisson’s coefficient, ν | - | - | 144 |
ASTM A240/A240M 316L Material Machining Technology
ASTM A240/A240M 316L steel is an iron-based alloy with a minimum of 10.5% chromium by mass. It has high corrosion resistance, strength, and durability, making it an excellent choice for industrial applications. Due to its corrosion resistance, stainless steel is often used in medical and food applications, as well as in a variety of building products.