Titanium Gr 2 Fasteners
Titanium Grade 2 fasteners supplied to ASTM F467 / F468 from our Mumbai stockyard. Titanium Grade 2 is unalloyed commercially pure titanium, the most widely used titanium grade in industrial plant. It offers outstanding resistance to seawater, wet chlorine, hypochlorite and oxidising acids, good formability and weldability, and a density of 4.51 g/cm³ — a little over half that of steel. It is the standard choice for condenser and heat exchanger tubing in seawater service.
Governing Standards for Titanium Gr 2 Fasteners
State the standard on your enquiry and we will confirm stock against it.
| Standard | Covers |
|---|---|
| ASTM F467 / F468 | Nuts and bolts |
Titanium Gr 2 Chemical Composition (%)
Composition and mechanical values are the limits set by the governing ASTM specification and are given for reference. The mill test certificate supplied with your consignment carries the actual heat analysis.
| Element | Titanium Grade 2 (R50400) |
|---|---|
| Titanium | Balance |
| Oxygen | 0.25 max |
| Iron | 0.30 max |
| Carbon | 0.08 max |
| Nitrogen | 0.03 max |
| Hydrogen | 0.015 max |
| Residuals, each / total | 0.1 max / 0.4 max |
Titanium Gr 2 Fasteners Specifications
Titanium Gr 2 Fasteners — Chemical Composition
| Grade | C | Mn | P | S | Si | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|---|
| TP 304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0–20.0 | 8.0–11.0 | — | N 0.10 |
| TP 304L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0–20.0 | 8.0–13.0 | — | N 0.10 |
| TP 316 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0–18.0 | 11.0–14.0 | 2.00–3.00 | N 0.10 |
| TP 316L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0–18.0 | 10.0–15.0 | 2.00–3.00 | N 0.10 |
| TP 321 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0–19.0 | 9.0–12.0 | — | Ti ≥ 5 × C |
| TP 347 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0–19.0 | 9.0–13.0 | — | Nb ≥ 10 × C |
| TP 310S | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 24.0–26.0 | 19.0–22.0 | — | — |
| TP 317L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0–20.0 | 11.0–15.0 | 3.00–4.00 | N 0.10 |
Note: Per ASTM A312 / A240. Values are maximum % by weight unless a range is shown. ASTM A312 permits 0.035% max carbon on L grades, where ASTM A240 plate specifies 0.030% max.
Titanium Gr 2 Fasteners — Mechanical Properties
| Grade | Tensile Strength (min) | Yield Strength 0.2% (min) | Elongation (min) | Hardness (max) |
|---|---|---|---|---|
| TP 304 | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | 90 HRB / 192 HBW |
| TP 304L | 485 MPa (70 ksi) | 170 MPa (25 ksi) | 35% | 90 HRB / 192 HBW |
| TP 316 | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | 90 HRB / 192 HBW |
| TP 316L | 485 MPa (70 ksi) | 170 MPa (25 ksi) | 35% | 90 HRB / 192 HBW |
| TP 321 | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | 90 HRB / 192 HBW |
| TP 347 | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | 90 HRB / 192 HBW |
| TP 310S | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | 90 HRB / 192 HBW |
Note: Specified minimum values in the solution-annealed condition, per ASTM A312 / A240. Elongation is measured in 50 mm (2 in.).
Titanium Gr 2 Fasteners — Size Range & Supply Condition
| Parameter | Range |
|---|---|
| Diameter | M3 to M100 / #4 to 4" |
| Length | 3 mm to 500 mm |
| Thread standards | Metric coarse & fine, UNC, UNF, BSW, BSF, NPT, BSP |
| Property class — carbon & alloy | 4.6, 4.8, 5.8, 8.8, 10.9, 12.9 |
| Property class — stainless | A2-70, A2-80, A4-70, A4-80 |
| High-temperature bolting | ASTM A193 B7 / B8 / B8M studs with ASTM A194 2H / 8 / 8M nuts |
| Finish | Plain, hot dip galvanised, zinc plated, PTFE / Xylan coated, phosphated, cadmium plated |
| Standards | ASME B18.2.1 / B18.2.2, DIN 931 / 933 / 934, IS 1367, ISO 4014 / 4017 |
Titanium Gr 2 Fasteners — Physical Properties
| Property | SS 304 / 304L | SS 316 / 316L |
|---|---|---|
| Density | 8.00 g/cm³ | 8.00 g/cm³ |
| Melting range | 1400–1450 °C | 1375–1400 °C |
| Modulus of elasticity | 193 GPa | 193 GPa |
| Thermal conductivity (100 °C) | 16.2 W/m·K | 16.3 W/m·K |
| Specific heat (0–100 °C) | 500 J/kg·K | 500 J/kg·K |
| Thermal expansion (0–100 °C) | 17.2 µm/m·°C | 15.9 µm/m·°C |
| Electrical resistivity | 720 nΩ·m | 740 nΩ·m |
| Max continuous service temp. | ≈ 870 °C | ≈ 925 °C |
| Magnetic response (annealed) | Non-magnetic | Non-magnetic |
Note: Values at 20 °C unless stated. Thermal expansion matters when austenitic stainless is welded to carbon steel.
Titanium Gr 2 Fasteners — Equivalent Grades Across Standards
| ASTM / AISI | UNS | EN / DIN | EN Name | JIS | GB |
|---|---|---|---|---|---|
| 304 | S30400 | 1.4301 | X5CrNi18-10 | SUS 304 | 06Cr19Ni10 |
| 304L | S30403 | 1.4307 | X2CrNi18-9 | SUS 304L | 022Cr19Ni10 |
| 316 | S31600 | 1.4401 | X5CrNiMo17-12-2 | SUS 316 | 06Cr17Ni12Mo2 |
| 316L | S31603 | 1.4404 | X2CrNiMo17-12-2 | SUS 316L | 022Cr17Ni12Mo2 |
| 321 | S32100 | 1.4541 | X6CrNiTi18-10 | SUS 321 | 06Cr18Ni11Ti |
| 347 | S34700 | 1.4550 | X6CrNiNb18-10 | SUS 347 | 06Cr18Ni11Nb |
| 310S | S31008 | 1.4845 | X8CrNi25-21 | SUS 310S | 06Cr25Ni20 |
| 430 | S43000 | 1.4016 | X6Cr17 | SUS 430 | 10Cr17 |
Note: Cross-reference for enquiries written against European, Japanese or Chinese standards. Equivalents are close but not always identical — check the composition limits before substituting.
Titanium Gr 2 Fasteners — Ordering & Supply
| Parameter | Detail |
|---|---|
| Minimum order quantity | 5 kg (mixed sizes within a grade can be combined to reach the MOQ) |
| Price basis | Ex-works Mumbai, FOB or CIF — quoted per kg, per metre or per piece depending on the form |
| Lead time | Ready stock dispatched in 1–3 working days; mill orders typically 2–6 weeks |
| Certification | Mill test certificate to EN 10204 3.1 as standard; 3.2 with third-party witness, IBR and NACE MR0175 on request |
| Testing available | PMI, IGC (ASTM A262), hydrostatic, ultrasonic, radiographic, impact and hardness testing |
| Third-party inspection | Bureau Veritas, TÜV, DNV, SGS, Lloyd's Register, Intertek, RITES and client/EPC inspection |
| Packing | Wooden crates or pallets, plastic caps on pipe ends, VCI wrapping where required, seaworthy export packing |
| Payment terms | Advance, against proforma invoice, or LC at sight for export orders |
| Supply area | Across India and export to the Middle East, Europe, the USA, Africa and South East Asia |
| Product form | Fasteners |
Note: Cut lengths, non-standard sizes and special certification are available on request. Prices are quoted against grade, size, schedule and quantity.
Values shown are the specified minima and maxima published in the governing standards and are given for guidance. The mill test certificate supplied with your consignment reports the actual results for that heat.
When to specify Titanium Gr 2 for fastener work
Choose Grade 2 where chlorides defeat stainless steel — seawater cooling, desalination, hypochlorite and bleaching plant — and where weight matters. It is not an all-purpose corrosion alloy: titanium is attacked by dry chlorine, by hydrofluoric acid at any concentration, and by strong reducing acids unless inhibited. Where high strength is needed rather than corrosion resistance, Grade 5 (Ti-6Al-4V) is the alloyed choice.
Products in this range
Titanium Gr 2 in other forms
Full composition, properties and equivalents on the Titanium Grade 2 grade page.
Frequently Asked Questions
- What is the difference between Titanium Grade 2 and Grade 5?
- Grade 2 is commercially pure titanium — unalloyed, with about 345 MPa tensile strength, readily formed and welded, and chosen for corrosion resistance. Grade 5 is Ti-6Al-4V, alloyed with aluminium and vanadium, reaching roughly 900 MPa and chosen for strength, principally in aerospace and high-load components. Grade 5 is harder to form and weld. For chemical and marine plant, Grade 2 is almost always the correct specification.
- Where does titanium not work?
- Titanium is attacked by dry chlorine gas, by hydrofluoric acid at any concentration, and by strong reducing acids such as hot concentrated hydrochloric or sulphuric unless they are inhibited by oxidising species. It also has a red-hot fire risk in pure oxygen. Titanium is exceptional in the right medium, and a poor choice in the wrong one — always confirm against your actual service chemistry.
Send your Titanium Gr 2 Fasteners requirement
Give us the size, schedule or thickness, quantity and standard and we will confirm stock and send a firm price. Minimum order quantity 5 kg, mill test certificate to EN 10204 3.1 with every consignment.