ASTM A240/A240M 316N Introduce
ASTM A240/A240M 316N 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:1417°C - 1347°C
Application:Heat-resistant chrome and chrome-nickel stainless steel sheets, sheets and strips for pressure vessels
ASTM A240/A240M 316N Material Chemical Composition
The chemical composition of the ASTM A240/A240M 316N steel are as follows:
| Element | Min | Max |
|---|---|---|
| Nitrogen (N) | 0.1000 | 0.1600 |
| 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) | - | 0.0800 |
ASTM A240/A240M 316N Material Mechanical Properties
Impact strength is a measure of the ability of a material to absorb sudden impacts and shocks without breaking or deforming. This ASTM A240/A240M 316N steel typically has a high impact strength, allowing it to withstand shocks and sudden impacts without sustaining any damage or deforming. High impact strength is essential for use in construction applications where it may encounter sudden forces or impacts.
The mechanical properties of the ASTM A240/A240M 316N steel are as follows:
| YieldRp0.2 | ≤ 252 (MPa) |
| TeileRm | ≤ 798 (MPa) |
| ImpactKV/Ku | 34(J) |
| ElongationA | 44% |
| Reduction in cross section on fractureZ | 41% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 233 |
ASTM A240/A240M 316N Material Thermal Properties
The thermal performance parameters of the ASTM A240/A240M 316N steel are as follows:
| Temperature (°C) | 44 | 448 | 117 |
| Modulus of elasticity (GPa) | - | 293 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 22 |
| Thermal conductivity (W/m·°C) | - | 41.3 | 33.2 |
| Specific thermal capacity (J/kg·°C) | - | 331 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.14 | - | - |
| Deity (kg/dm³) | - | - | 443 |
| Poisson’s coefficient, ν | - | - | 234 |
ASTM A240/A240M 316N Material Machining Technology
ASTM A240/A240M 316N 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.