Titanium Socket Weld Flange Factory & Exporter in Graz

While ASME B16.5 governs imperial pressure classes (Class 150, 300, 600, etc.) common in global chemical, oil & gas, and motorsport skids, EN 1092-1 defines metric PN ratings (PN10, PN16, PN25, PN40). In EN 1092-1, socket weld types are typically categorized under Type 12 or specialized Type 11 variants. Jovzi Titanium manufactures flanges to both standards, ensuring bolt-hole PCD, flange thickness, and socket counterbore dimensions align precisely with your existing plant documentation or metric pipe schedules (DIN 2448 / EN 10220).

Per ASME B31.3 Section 328.5.2, bottoming the pipe fully against the socket shoulder prior to welding creates high residual tensile stress during weld solidification. Because titanium has a lower thermal conductivity and a distinct coefficient of thermal expansion compared to stainless steel, omitting this expansion gap frequently induces root cracking during thermal expansion or cyclic pressure surges. Our flanges are machined with clean shoulder chamfers to assist welders in gauging this clearance accurately.

Yes. Every order shipped to Graz is accompanied by a genuine EN 10204 Type 3.1 inspection certificate issued by our certified quality department, stating heat number, chemical composition (C, O, N, H, Fe, Ti), tensile strength, 0.2% proof stress, and elongation. For pressure equipment subject to PED 2014/68/EU, we ensure all raw materials originate from qualified sponge melts and can coordinate third-party testing via the national BaoTi Testing Center.

Titanium is extremely reactive with oxygen, nitrogen, and carbon at temperatures above 400°C. Fillet welding socket flanges requires ultra-high purity argon (minimum 99.995%) with primary torch shielding, a dedicated trailing shield to protect the cooling bead, and root back-purging inside the pipe bore. A shiny silver or light straw weld bead indicates proper shielding; dark blue, purple, or powdery white oxide formations indicate embrittlement and necessitate weld rejection.

For urgent prototypes or emergency repair orders, our air freight courier service delivers to Graz within 4 to 7 business days. For containerized or palletized project cargo, ocean freight via the Port of Koper (Slovenia) followed by block-train transfer to the Cargo Center Graz typically takes 26 to 32 days from vessel departure, offering substantial freight cost savings over Northern European ports.

Standard ASME B16.5 Grade 2 socket weld flanges (NPS 1/2" to 2") carry an MOQ as low as 1 piece if stock forgings are available, or 5 to 10 pieces for made-to-order production runs. Custom configurations (special bolt circles, RTJ grooves, or Grade 7/Grade 12 palladium alloys) are quoted based on drawing requirements and material batch economics.