Company profile
We supply and service special non-ferrous alloys — titanium, nickel corrosion-resistant and superalloys, refractory tungsten and molybdenum, zirconium, tantalum, niobium and copper alloys — to 13 industries including oil & gas, chemical processing, marine, aerospace and power.
Backed by a 156-grade library and a digital selection system, choosing the right material against the right standard becomes straightforward: describe the service condition and get ranked candidates with reasoning; every grade has a datasheet that keeps guaranteed values apart from reference figures.
Certifications
Certified by a third-party certification body, with annual surveillance audits
Conformity statement for sour-service material
EN 10204 3.1 / 3.2 material certificates for pressure-equipment orders; 3.2 can be witnessed by a third party such as a notified body
Declarations on restricted substances and chemicals
Heat numbers are traceable from the melt to the finished piece. The certificate states:
- Grade · standard · delivery condition
- Heat / lot number — traceable to the melt
- Chemical analysis, measured
- Room-temperature Rm / Rp0.2 / A, measured
- Supplementary tests required by the standard
- Signatory — 3.1 mill QA · 3.2 countersigned
Plant and process
Melt to shipment · on-site photosMelting and remelting, forging and rolling, heat treatment and finishing, testing and export packing: all 22 steps are done on our own site. Each stage below lists the route and the standards we work to, using nickel alloys as the example.
Melting and remelting
Primary melting by vacuum induction or electric arc plus AOD; electroslag or vacuum arc remelting where the grade calls for it. Every ingot is inspected and dressed.
- Primary melting
- VIM · EAF + AOD
- Remelting
- ESR · VAR, by grade and order
- Composition
- within the ASTM / UNS limits for the grade
- Ingots
- each one inspected · surface dressed
Forging and rolling
Cogging breaks down the cast structure; hot rolling, extrusion or piercing forms the product, and cold rolling or drawing takes it to size, with process anneals as needed.
- Cogging
- forging, reduction ratio to the product standard and order
- Hot working
- hot rolling · extrusion · piercing
- Cold working
- cold rolling · cold drawing
- Product standards
- bar ASTM B446 · pipe B444 · plate B443 (alloy 625)
Heat treatment and finishing
Annealing, solution treatment or ageing to suit the grade, then straightening, pickling, turning or grinding, and cutting to length on order.
- Heat treatment
- anneal · solution · age, to the grade standard
- Condition
- e.g. 625 Grade 1 annealed, Grade 2 solution-annealed (ASTM B446)
- Surface
- pickled · bright annealed · turned · ground
- Tolerances
- to the product standard; tube ASTM B829, plate and strip B906
Testing and certification
Every heat lot is analysed and tensile-tested, with grain size and corrosion tests where the grade requires. After NDT and PMI it is stamped with its heat number and shipped with an EN 10204 certificate.
- Chemistry
- ASTM E1473 · check analysis to B880
- Mechanical
- tensile ASTM E8/E8M · hardness E18
- Grain size and corrosion
- ASTM E112 · G28 / G48, by grade
- NDT
- ultrasonic ASTM E213 · eddy current E426 · penetrant E165
- PMI
- to API RP 578
- Certificate
- EN 10204 3.1; 3.2 third-party witness on request
Stock and export packing
Common grades are held in stock. Export packing uses heat-treated wooden crates and anti-rust wrapping, with shipping marks to the destination's rules.
- Lead time
- stock 3–7 days · made to order 15–35 days
- Crates
- ISPM 15 heat-treated timber
- Rust protection
- VCI wrapping · pipe-end caps
- Terms
- EXW · FOB · CIF · DDP, Shanghai / Ningbo
See all 22 steps
- 01Raw materialsincoming check
- 02Primary meltingVIM · EAF + AOD
- 03RemeltingESR · VAR
- 04Ingot checksurface dressing
- 05Coggingforging ratio
- 06Hot workingroll · extrude · pierce
- 07Cold workingroll · draw
- 08Process anneal
- 09Heat treatmentanneal · solution · age
- 10Straightening
- 11Surface finishpickling · bright anneal
- 12Finishingpeel · grind · cut
- 13Chemistryheat · product
- 14Mechanicaltensile · hardness
- 15Grain sizeASTM E112
- 16Corrosion testsG28 · G48
- 17NDTUT · ET · PT
- 18Size & surface
- 19PMI checkalloy identity
- 20Heat markingstamp · inkjet
- 21CertificateEN 10204
- 22Pack & shipcrate · anti-rust