TorqBolt Inc. specializes in manufacturing mission-critical Titanium fasteners — including heavy hex bolts, tap-end studs, socket head cap screws, hex nuts, and precision washers. Engineered from commercially pure grades (Grade 1, 2, 3, 4) and high-performance alpha-beta alloys such as Grade 5 (Ti-6Al-4V) and palladium-stabilized Grade 7 & Grade 11, our fasteners deliver exceptional corrosion immunity with a 45% weight saving over steel.
Titanium naturally develops a tenacious, self-healing titanium dioxide (TiO2) passive film upon exposure to air and moisture. This dense oxide layer makes titanium fasteners virtually immune to chloride-induced pitting, crevice attack, sour gas environments, and ambient seawater corrosion, making them the standard choice for offshore platforms, subsea risers, aerospace defense structures, and chlor-alkali chemical processing.
TorqBolt manufactures titanium fastening components utilizing controlled hot forging, cold heading, and multi-axis CNC Swiss machining to preserve optimal metallurgical grain structure and high fatigue resistance.
Hex head bolts, heavy hex structural bolts, socket cap screws, countersunk, and 12-point flange bolts built for structural assemblies under severe mechanical and chemical stress.
All-thread stud bolts, double-end engineering studs, and continuous threaded rods designed for ASME B16.5 and B16.47 piping flange assemblies in subsea and offshore risers.
Standard hex nuts, heavy hex nuts, prevailing torque lock nuts, thin jam nuts, and castellated nuts precision-threaded to prevent thread binding and galling under cyclic loads.
Flat plain washers, heavy-duty structural washers, spring lock washers, and disc Belleville washers engineered to maintain preload bolting tension under dynamic thermal expansion.
Specialty forged rings, hollow bored cylinders, CNC-machined components, eye bolts, and custom non-standard fasteners engineered to precise customer engineering drawings.
Countersunk torx screws, button head screws, set screws with cup/cone points, and lightweight aircraft rivets for medical devices and aerospace airframes.
TorqBolt stocks certified titanium round bars and ingots to execute fast turnaround production. Each material lot conforms to rigorous ASTM, ASME, and AMS chemical composition specifications with strict hydrogen gas control to eliminate embrittlement risks.
| UNS No. | Grade | C | Fe | O | H | N | Al | V | Pd | Mo | Ni | Ti |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R50250 | Titanium Grade 1 | 0.08 | 0.20 | 0.18 | 0.015 | 0.03 | — | — | — | — | — | Balance |
| R50400 | Titanium Grade 2 | 0.08 | 0.30 | 0.25 | 0.015 | 0.03 | — | — | — | — | — | Balance |
| R50550 | Titanium Grade 3 | 0.08 | 0.30 | 0.35 | 0.015 | 0.05 | — | — | — | — | — | Balance |
| R50700 | Titanium Grade 4 | 0.08 | 0.50 | 0.40 | 0.015 | 0.05 | — | — | — | — | — | Balance |
| R56400 | Titanium Grade 5 (Ti-6Al-4V) | 0.08 | 0.40 | 0.20 | 0.0125 | 0.05 | 5.50–6.75 | 3.50–4.50 | — | — | — | Balance |
| R52400 | Titanium Grade 7 (Ti-0.15Pd) | 0.08 | 0.30 | 0.25 | 0.015 | 0.03 | — | — | 0.12–0.25 | — | — | Balance |
| R56320 | Titanium Grade 9 (Ti-3Al-2.5V) | 0.08 | 0.25 | 0.15 | 0.015 | 0.03 | 2.50–3.50 | 2.00–3.00 | — | — | — | Balance |
| R52250 | Titanium Grade 11 (CP Ti-Pd) | 0.08 | 0.20 | 0.18 | 0.015 | 0.03 | — | — | 0.12–0.25 | — | — | Balance |
| R53400 | Titanium Grade 12 (Ti-Mo-Ni) | 0.08 | 0.30 | 0.25 | 0.015 | 0.03 | — | — | — | 0.20–0.40 | 0.60–0.90 | Balance |
The benchmark workhorse for chemical plant equipment, flue-gas desulfurization, and seawater systems. Excellent cold ductility, high weldability, and exceptional chloride resistance.
Alpha-beta heat-treatable alloy delivering tensile strength ≥ 895 MPa and yield ≥ 828 MPa. Dominates aerospace fasteners, offshore marine tie-downs, subsea housings, and high-performance racing.
Palladium additions dramatically suppress crevice corrosion in acidic chloride environments and elevated temperature brines where standard CP grades might reach pitting thresholds.
Cost-effective alternative to palladium alloys for high-temperature chemical process vessels, offering enhanced yield strength and resistance to hot chloride stress-corrosion.
Every heat of titanium fasteners is verified in TorqBolt's in-house laboratory for tensile strength, 0.2% yield offset, elongation, reduction of area, and Rockwell/Vickers hardness.
| Grade Designation | Nominal Composition | Tensile Strength (MPa min) | Yield Strength 0.2% (MPa min) | Elongation (% min) | Hardness (Typical) | Density (g/cm³) |
|---|---|---|---|---|---|---|
| Titanium Grade 1 | Unalloyed CP | 240 | 170 | 24 | 80 HRB | 4.51 |
| Titanium Grade 2 | Unalloyed CP | 345 | 275 | 20 | 80 HRB | 4.51 |
| Titanium Grade 3 | Unalloyed CP | 450 | 380 | 18 | 90 HRB | 4.51 |
| Titanium Grade 4 | Unalloyed CP | 550 | 483 | 15 | 100 HRB | 4.51 |
| Titanium Grade 5 | Ti-6Al-4V | 895 | 828 | 10 | 30–36 HRC | 4.43 |
| Titanium Grade 7 | Ti-0.15Pd | 345 | 275 | 20 | 80 HRB | 4.51 |
| Titanium Grade 9 | Ti-3Al-2.5V | 620 | 483 | 15 | 24–28 HRC | 4.48 |
| Titanium Grade 12 | Ti-0.3Mo-0.8Ni | 483 | 345 | 18 | 90 HRB | 4.51 |
Because titanium is sensitive to interstitial oxygen, nitrogen, and hydrogen pickup during elevated-temperature forming and heat treatments, our manufacturing adheres to stringent ISO 9001:2015 and PED 2014/68/EU protocols.
All hot-forging and vacuum stress-relieving procedures follow documented AMS 4928 and ASTM thermal parameters, ensuring complete absence of the alpha-case brittle skin layer.