316 is a type 18-8 austenitic stainless steel derivative steel, its main feature is to add 2% to 3% Mo element on the basis of 304 steel, so it has better oxidation resistance and atmospheric corrosion resistance, while having good high temperature strength and high temperature creep resistance. Because the alloy contains Mo, it has good pitting resistance in chlorine-containing environments, and can be used in Marine and offshore environments where corrosion resistance is required. The comprehensive performance of 316 exceeds 304, but there is still a tendency of intergranular corrosion, and the sensitization temperature range should be avoided in use. A large number of imported 316 grades in China are mainly American 316 and Japanese SUS316, these two materials have differences in Ni content, and should be paid attention to when choosing.
Chemical element content (%)
| Element | C | Si | Mn | P | S | Cr | Ni | Mo |
| Min | - | - | - | - | - | 16 | 10 | 2 |
| Max | 0.08 | 1 | 2 | 0.045 | 0.03 | 18 | 14 | 3 |
Physical properties
Tensile strength σb (MPa)≥620
Conditional yield strength σ0.2 (MPa)≥310
Elongation δ5 (%)≥30
Reduction of area ψ (%)≥40
Hardness: ≤201HBW; ≤92HRB; ≤210HV
Density (20ºC, g/cm³):7.95/8
Melting point (ºC): 1370-1397
Specific heat capacity (0~100ºC, KJ·kg-1K-1): 0.50
Thermal conductivity (W·m-1·K-1): (100ºC) 16.3, (500ºC) 21.5
Linear expansion coefficient (10-6·K-1): (0~100ºC) 16 (0~500ºC) 18.5
Resistivity (20ºC, 10-6Ω·m2/m): 0.74
Longitudinal elastic modulus (20ºC, KN/mm2): 193
| Product name | 316 Stainless steel Square Pipe |
| Standard | GB JIS ASTM DIN EN |
| Steel grade | GB/T14976,GB/T14975,GB/T3280,GB/T4237,GB/T1220; ASTM A312,A312M,ASTM A213,A213M,ASTM A240;JIS G 4304,JIS G4304,JISIG4303 |
| Surface treatment | 2B BA etc. |
| Production technology | cold drawn/cold rolled/hot rolled |
| MOQ | 1ton, We can accpet sample order. |
| Thickness | as customer's requirement |
| Export Packing | Standard Seaworthy Package, Wooden pallets, Wooden cases or according to customer's requests |
Application area
316 stainless steel, 18Cr-12Ni-2.5Mo due to the addition of Mo, so its corrosion resistance, atmospheric corrosion resistance and high temperature strength is particularly good, can be used under harsh conditions; Excellent work hardening (non-magnetic). Seawater equipment, chemicals, dyes, papermaking, oxalic acid, fertilizer and other production equipment; Photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts.
