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| Property | Value |
|---|---|
| UNS Number | S31600 / S31603 / S31635 |
| ASTM/ASME Standard | ASTM A193/A320, ASME SA193/SA320 |
| Tensile Strength | 515 MPa min |
| Yield Strength | 205 MPa min |
| Density | 8.00 g/cm³ |
| Max Service Temperature | 870°C |
| Element | Composition (%) |
|---|---|
| Cr | 16.0–18.0 |
| Ni | 10.0–14.0 |
| Mo | 2.0–3.0 |
| Mn | ≤2.0 |
| C | ≤0.08 |
| Si | ≤0.75 |
| N | ≤0.10 |
SS 316/316L/316Ti fasteners derive their performance from a carefully balanced alloy composition comprising chromium, nickel and molybdenum. Chromium, present at 16-18%, forms a passive oxide layer that provides excellent corrosion resistance, while nickel (10-14%) stabilizes the austenitic structure and enhances ductility. Molybdenum, at 2-3%, significantly improves resistance to pitting and crevice corrosion, particularly in chloride-rich environments. The low carbon variant, 316L, minimizes carbide precipitation during welding, whereas 316Ti incorporates titanium stabilization to prevent intergranular corrosion at elevated temperatures.
These metallurgical characteristics translate into fasteners with superior mechanical strength, exceptional resistance to marine and industrial corrosion, and reliable performance across a broad temperature range. The alloy maintains structural integrity in aggressive chemical processing, offshore, and pharmaceutical applications, resisting stress corrosion cracking and oxidation. Combined with good weldability and formability, SS 316/316L/316Ti fasteners deliver long-term durability, reduced maintenance costs, and dependable joint security, making them the preferred choice for demanding fastening applications requiring both strength and corrosion resistance.
Specifications
SS 316 / 316L / 316Ti Fasteners are specified by corrosion-resistant austenitic stainless steel grades, with controlled mechanical properties, dimensional tolerances, thread profiles, and size ranges for demanding service environments. Technical data emphasizes tensile behavior, hardness, and elongation, with overall suitability governed by grade selection and dimensional standards.
| Property | Value |
|---|---|
| Tensile Strength | 515-720 MPa |
| Yield Strength (0.2% Offset) | 205 MPa min |
| Elongation | 40% min |
| Hardness | 95 HRB max |
| Modulus of Elasticity | 193 GPa |
| Thermal Expansion (0-100°C) | 15.9 µm/m·°C |
| Thermal Conductivity | 16.2 W/m·K |
| Density | 8.00 g/cm³ |
| Melting Range | 1375-1400°C |
| Max Service Temperature | 870°C |
| Standard Type | Details |
|---|---|
| Bolt Standard | ASTM A193 B8/B8M, DIN 931/933 |
| Stud Bolt Standard | ASTM A193 Gr. B8/B8M, MSS SP-75 |
| Nut Standard | ASTM A194 Gr. 8/8M, DIN 934 |
| Washer Standard | ASTM F844, DIN 125 |
| Thread Form | UNC, UNF, Metric Coarse/Fine |
| Diameter Range | M3 to M100 / #4 to 4 inch |
| Length Range | 10mm to 500mm |
| Available Product Forms | Bolts, Studs, Nuts, Washers, Screws |
| Custom Sizes | Available on request |
| Inspection Standards | NACE MR0175, EN 10204 3.1 |
Applications
