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Titanium Stud Bolts
Standards and Core Material Performance
Implementation Standards: Complies with DIN 939 specifications for equal-length stud bolts, featuring a fully threaded design at both ends and a headless design, suitable for applications requiring double-ended fastening (such as flange connections and equipment supports).
Material: Titanium Alloy GR5 (Ti-6Al-4V), solution-aged (920°C × 1h water cooling + 500°C × 3h air cooling). Key Performance Indicators:
Mechanical Properties: Tensile Strength ≥ 900 MPa, Yield Strength ≥ 830 MPa, Elongation at Break ≥ 12%, ensuring no plastic deformation under tensile loads (such as thermal expansion and contraction of pipelines).
Corrosion Resistance: Surface natural oxide film (5-10μm) with a corrosion rate of ≤ 0.0005mm/year in seawater and industrial exhaust, 100 times better than 316L stainless steel.
Lightweight: Density 4.51g/cm³, a single M4×75mm bolt weighs only 8.2g (compared to approximately 15g for a stainless steel bolt of the same specification), a 45% weight reduction.
| Titanium Stud product parameters | |
| Product Name | Titanium Stud |
| Material | titanium alloys GR5 |
| Specifications: | Nominal diameter M4, coarse thread (pitch 0.7mm, in accordance with ISO 724), thread accuracy Class 4h (pitch diameter tolerance ±0.015mm), thread profile half-angle deviation ≤ ±30°, ensuring a non-seizing fit with the nut; thread length at both ends 12mm (in accordance with DIN 939 for M4), effective thread length ≥ 10mm, polished rod length 75mm - 2 x 12mm = 51mm, polished rod diameter tolerance Class H9 (±0.03mm). Key Tolerance Controls: Overall length tolerance ±0.5mm (DIN 939 Class C), rod straightness ≤0.02mm/m, thread coaxiality ≤0.1mm at both ends to avoid additional bending moments during installation. |
| Precision machining: | The polished rod part of the titanium alloy bar is processed by CNC turning, with a surface roughness of Ra≤1.6μm, avoiding surface micro cracks caused by the cold heading process; |
| Quality Control: | Implementation standards: DIN 939 (equal-length stud bolts), ASTM B348 (titanium alloy bars), ISO 898-5 (mechanical properties of fasteners - titanium alloys); Factory inspection: Each batch undergoes thread go/no-go gauge inspection, tensile strength testing (≥900 MPa), and salt spray testing (no red rust after 5000 hours). |
| Minimum order quantity | 100pcs |
| length | Customizable |
| Surface treatment | Natural anodizing: 5-8μm film thickness, silvery white, salt spray resistance >5000 hours (ASTM B117); Sandblasting: Matte finish (Ra 1.6μm), reduces light reflection, suitable for optical equipment or concealed installations. |
Titanium fasteners Manufacturers and Suppliers
Titaudou is a professional manufacturer and supplier of Titanium stud bolts，Titanium products available in a wide variety of custom sizes, grades, and specifications。We supply products that meet the standards of ASTM B348, ASTM B381, ASTM B337, ASTM B338Titanium stud bolts ,We supply Titanium stud bolts, etc. In addition, we can also customize according to customer requirements. We also supply titanium round bars, titanium plates, titanium wires, titanium forgings, titanium processed parts and other titanium products.
