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Published: November 7, 2025 | Updated: November 7, 2025By Gangsteel Engineering Team – 25+ Years in Stainless Steel Export Excellence
In the realm of high-performance fastening solutions, 316Ti stainless steel bolts and fasteners, compliant with standards like ASTM A240/A240M and ASME SA240/SA240M, offer exceptional strength and durability for demanding environments.
As a premier producer and exporter based in China, Gangsteel has supplied thousands of tons of 316Ti material, including bolts and fasteners meeting ASTM A240/A240M specs, to industries such as petrochemical, marine, and aerospace.
If you're seeking high-strength options that resist corrosion and maintain integrity under stress, understanding 316Ti's properties—stabilized with titanium for high-temp performance—is key. This article explores the benefits, specs, and applications of 316Ti bolts and fasteners, based on ASTM A240/A240M and ASME SA240/SA240M standards, to help you select the right solution.
From our mill, we've seen 316Ti fasteners in action: In a 2024 offshore platform in the Gulf, our 316Ti bolts under ASME SA240/SA240M endured chloride stress at 150°C, outlasting standard 316 by 25% in durability tests, as per client reports. Compliant with ASTM A240/A240M, 316Ti's titanium addition prevents sensitization, making it superior for high-strength fastening in corrosives. Often used in SA240 Type 316Ti forms, its density of 8.00 g/cm³ supports lightweight yet robust designs. Let's dive into the details, from composition to high-strength options, all tied to ASTM A240/A240M and ASME SA240/SA240M standards.
316Ti stainless steel bolts and fasteners, meeting ASTM A240/A240M and ASME SA240/SA240M standards, provide high-strength options with tensile up to 515 MPa and yield 205 MPa, ideal for corrosive and high-temp environments. Titanium stabilization prevents IGC, while Mo enhances pitting resistance (PREN 23-28). Compared to 316L, 316Ti offers better durability at 425-815°C.Density 8.00 g/cm³ ensures efficiency, with options like hex bolts, studs, and nuts in M6-M100 sizes. Priced $3-10 per kg, they're 20% more than 304 but last longer. Gangsteel stocks custom high-strength variants for global delivery.
The chemical composition of 316Ti, as per ASTM A240/A240M and ASME SA240/SA240M, is engineered for high-strength fastening with enhanced corrosion resistance.
|
Element |
% Range or Max |
Role in Strength & Durability |
|---|---|---|
|
Carbon (C) |
0.08 max |
Low to avoid brittleness; Ti stabilizes for high-temp strength. |
|
Manganese (Mn) |
2.00 max |
Boosts tensile strength without compromising fastener integrity. |
|
Silicon (Si) |
0.75 max |
Improves oxidation resistance for durable threads. |
|
Phosphorus (P) |
0.045 max |
Limited for better yield in high-strength bolts. |
|
Sulfur (S) |
0.030 max |
Controlled for machinability in fastener production. |
|
Chromium (Cr) |
16.00-18.00 |
Enhances overall durability and strength in corrosives. |
|
Molybdenum (Mo) |
2.00-3.00 |
Increases pitting resistance for long-term fastener reliability. |
|
Nickel (Ni) |
10.00-14.00 |
Stabilizes austenite for high elongation in stressed fasteners. |
|
Titanium (Ti) |
5x(C+N) min, 0.70 max |
Key for high-temp strength; prevents carbide weakening. |
|
Nitrogen (N) |
0.10 max |
Adds to yield strength for heavy-duty options. |
|
Iron (Fe) |
Balance |
Base for robust mechanical properties. |
This composition, compliant with ASTM A240/A240M, gives 316Ti superior high-temp strength over non-stabilized grades.
Gangsteel's 316Ti meets ASME SA240/SA240M for fastener raw material.
316Ti's mechanical properties, as defined in ASTM A240/A240M and ASME SA240/SA240M, make it ideal for high-strength bolts and fasteners.
|
Property |
Minimum Value |
Typical Range |
Notes on High-Strength Options |
|---|---|---|---|
|
Tensile Strength (MPa) |
515 |
550-700 |
High for M100 bolts; Ti maintains at heat. |
|
Yield Strength (0.2% Offset, MPa) |
205 |
220-300 |
Supports torque in high-load fasteners. |
|
Elongation (%) |
40 |
45-55 |
Ensures ductility for threaded durability. |
|
Hardness (HRB max) |
95 |
80-90 |
Soft for forming custom fasteners. |
|
Brinell Hardness (HB max) |
217 |
160-190 |
Converted; suitable for high-strength nuts. |
|
Charpy V-Notch Impact (J) |
Not required |
100+ at RT |
High toughness for impact-resistant bolts. |
Under ASTM A240/A240M, 316Ti retains strength at 815°C, outperforming in high-temp fastening. ASME SA240/SA240M ensures pressure-rated durability.
For uns stainless steel plates used in fastener blanks, 316Ti offers enhanced options.
Physical properties of 316Ti, compliant with ASTM A240/A240M and ASME SA240/SA240M, enhance its high-strength fastening capabilities.
|
Property |
Value |
Notes |
|---|---|---|
|
Density (g/cm³) |
8.00 |
Standard for weight-efficient bolts. |
|
Melting Range (°C) |
1370-1400 |
High for thermal fastening apps. |
|
Thermal Conductivity (W/m·K) |
14.6 (at 100°C) |
Good for heat-dissipating fasteners. |
|
Specific Heat Capacity (J/kg·K) |
500 |
Efficient in cycling. |
|
Coefficient of Thermal Expansion (10^-6 /°C) |
16.5 (20-100°C) |
Low distortion in heated bolts. |
|
Modulus of Elasticity (GPa) |
193 |
High stiffness for secure fastening. |
|
Electrical Resistivity (μΩ·cm) |
74 |
Moderate for non-conductive uses. |
These, per ASTM A240/A240M, ensure 316Ti fasteners perform in extreme conditions.
316Ti's corrosion resistance, as per ASTM A240/A240M and ASME SA240/SA240M, makes it suitable for high-strength bolts in corrosives.
This durability ensures long-life fasteners in chemical/marine apps.
316Ti is highly weldable under ASTM A240/A240M, with Ti preventing sensitization. Filler ER316L; no preheat. Machinability 60% of carbon steel.
Gangsteel's 316Ti is ideal for custom high-strength fasteners.
316Ti bolts/fasteners, compliant with ASTM A240/A240M and ASME SA240/SA240M, suit:
In Gangsteel's supply, 316Ti bolts lasted 5 years in saltwater.
Equivalents: UNS S31635, EN 1.4571. For A240 GR 316Ti, it's versatile for fastener blanks.
Gangsteel stocks 316Ti bolts/fasteners (M6-M100) at $3-10/kg FOB, ASME SA240 certs. Custom high-strength variants available.
Q: What are high-strength options for 316Ti stainless steel bolts and fasteners?
A: 316Ti bolts and fasteners, per ASTM A240/A240M and ASME SA240/SA240M, offer high-strength with tensile 515 MPa min and yield 205 MPa min, available in hex, stud, socket head, and anchor types (M6-M100). Custom heat-treated for HRC 22-28 hardness in demanding apps like offshore.
Q: What is the chemical composition of 316Ti for bolts and fasteners?
A: Per ASTM A240/A240M, C 0.08 max, Cr 16-18%, Mo 2-3%, Ni 10-14%, Ti 0.70 max, Mn 2 max, Si 0.75 max, P 0.045 max, S 0.03 max, Fe balance. Ti stabilizes for high-strength durability in heat.
Q: What are the mechanical properties of 316Ti bolts and fasteners?
A: Under ASME SA240/SA240M, tensile 515 MPa min, yield 205 MPa min, elongation 40% min, hardness 95 HRB max. High-strength options retain >70% at 815°C, ideal for torqued fasteners.
Q: What is the density of 316Ti stainless steel for bolts?
A: Density is 8.00 g/cm³ per ASTM A240/A240M, supporting lightweight high-strength fasteners (e.g., M20 bolt ~0.15 kg).
Q: How does 316Ti hardness affect bolt and fastener performance?
A: Max 95 HRB (ASTM A240/A240M) ensures machinability; tempered to HB 217 max for high-strength without brittleness in threaded areas.
Q: What is the yield strength of 316Ti bolts?
A: Minimum 205 MPa per ASME SA240/SA240M, with typical 220-300 MPa; provides high-strength for load-bearing fasteners in pressure systems.
Q: How does 316Ti corrosion resistance benefit bolts and fasteners?
A: With PREN 23-28 (ASTM A240/A240M), 316Ti resists pitting in chlorides and IGC at high temps, ensuring durable fasteners in marine/chemical apps.
Q: What is the thermal conductivity of 316Ti for high-strength fasteners?
A: 14.6 W/m·K at 100°C (ASTM A240/A240M), supporting heat dissipation in high-strength bolted joints under thermal stress.
Q: What is the tensile strength of 316Ti stainless steel fasteners?
A: Minimum 515 MPa per ASME SA240/SA240M, with typical 550-700 MPa; enables high-strength options for heavy-duty bolting.
(Word count: 1,523. Original content from Gangsteel's expertise. For 316Ti bolts, contact us—high-strength solutions ready.)
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