Product Details
Aisi 316 stainless steel (UNS s31600)
Aisi 316 (UNS s31600) stainless steel is one of the most widely used austenitic stainless steels, the corrosion resistance and some properties of ss316 have been greatly improved due to the addition of molybdenum (mo).
316L stainless steel (UNS s31603) is a low carbon version of Aisi 316.316 stainless steel is superior to 304 stainless steel in corrosion resistance, heat resistance and some properties, but the price is superior to Aisi 304. For more details see 304 stainless steel vs 316 and 316 stainless steel vs 316L.
Ss316l can be used in applications that cannot be repositioned after welding and require maximum corrosion resistance.
Aisi 316 (UNS s31600) and 316L (UNS s31603) are American steel, its 316 and 316L are Japanese stainless steel.
Due to the addition of molybdenum, the general properties of steel are better than Aisi 310 and Aisi 304 stainless steel.Ss316 also has good resistance to chloride corrosion, so it is generally used in the marine environment.
Chemical composition of Aisi 316
The chemical composition of SS 316 is shown in Table 1.
Table 1 Composition of Aisi 316 stainless steel
| Type 316 Chemical Composition,% (≤) | ||||||||||
| ASTM | AISI Type (UNS) | C | Yes | Mn | P | S | Cr | Neither | Mo | N |
| ASTM A276 / A276M | 316 (UNS S31600) | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | |
| ASTM A240 / A240M | 316 (UNS S31600) | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | 0.10 |
Properties of Grade 316 Stainless Steel
The following table summarizes the physical, mechanical and magnetic properties of Aisi ASTM 316 stainless steel.
Mechanical properties
The following table shows the mechanical properties of Aisi 316 stainless steel, such as yield strength, tensile strength, elongation, and hardness.
Table 2 Properties of SS 316 Stainless Steel, 1 in. (25.4 mm) Bar Data
| SS 316 mechanical properties | ||||||
| Type | Tensile Strength (MPa), ≥ | Yield Strength, ≥ (MPa) at 0.2% Offset | Elongation in 50 mm (%), ≥ | Reduction in area (%) | Hardness (HBW), ≤ | Condition |
| 316 (UNS S31600) | 580 | 290 | 50 | 79 HRB | Annealed sheet | |
| 550 | 240 | 60 | 70 | 212 | Annealed bar | |
| 620 | 415 | 45 | 65 | 275 | Annealed and cold-drawn bar |
Table 3 Properties of ASTM 316 stainless steel
| ASTM 316 Mechanical Properties | |||||||||
| ASTM | Kind | Tensile strength (MPa) ≥ | 0.2% Yield strength ≥ (MPa) | 50mm elongation (%, ≥) | Area reduction,%, ≥ | Brinell hardness (HBW) ≤ | Rockwell hardness (HRBW) ≤ | Product | Condition |
| ASTM A240 / A240M | 316 (UNS S31600) | 515 | 205 | 40 | – | 217 | 95 | Plates, sheets and strips | – |
| ASTM A276 / A276M | 515 | 205 | 40 | 50 | – | – | Bars and shapes | Annealing, hot work | |
| 620 | 310 | 30 | 40 | – | – | Annealing, cold work, diameter ≤ 12.7 mm | |||
| 515 | 205 | 30 | 40 | – | – | Annealing, cold work, diameter> 12.7 mm |
Physical properties of SS 316 materials
The following figure shows the physical properties of SS 316 material, such as density, melting point, thermal conductivity, thermal expansion, magnetism, Elastic Modulus, specific thermal capacity, etc.
| Ss 316 physical properties | |
| 316 stainless steel density (G / cm3) | 8.03 |
| 316 stainless steel melting point | 1370-1398 ℃ |
| Specific heat capacity, J / (kg k) | 502 at 20 ℃ |
| Electrical resistivity, μΩm | 0.74 (20 ℃) |
| Magnetic permeability | 1.02 (Approximate) |
| Modulus of elasticity (Elastic modulus), GPa | 193 (28 × 106 psi) |
| Thermal diffusivity, mm2 / s | 4.05 (20-100 ℃) |
| Thermal conductivity of stainless steel 316, (W / m K) | 12.1 (20 ℃) |
| 16.3 (100 ℃) | |
| 21.5 (500 ℃) | |
| Coefficient of thermal expansion, (10-6 / K) | 15.9 (20-100 ℃) |
| 16.2 (20-300 ℃) | |
| 17.5 (20-500 ℃) |
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