Hunan Hengan Weiye Metal Products Co., Ltd.
| Standard | ASTM B622 / ASME SB622/ASTM B564 / ASME SB564 |
| Tolerance | O.D. / I.D.: ±0.1 mm (machined); per customer drawing for tighter requirements |
| Packaging Details | Waterproof polybag + Export wooden pallet / wooden case |
| Delivery Time | 10–30 Working Days |
| Size Range | OD6 – 530 mm/Wall thickness: 1 – 50 mm (custom); Length: 1 – 12 m |
| Grade | UNS N06455; W.Nr. 2.4610; DIN NiMo16Cr16Ti; GB NS335 / NS3305 |
| Delivery Condition | Solution annealed (1120–1180°C, water quenched) + pickled; or as‑machined per drawing |
| Payment Terms | T/T,L/C AT SIGHT |
| Surface | Black / peeled / bright / polished / ground / pickled |
| Place of Origin | China |
| Brand Name | HA Steel |
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Product Specification
| Standard | ASTM B622 / ASME SB622/ASTM B564 / ASME SB564 | Tolerance | O.D. / I.D.: ±0.1 mm (machined); per customer drawing for tighter requirements |
| Packaging Details | Waterproof polybag + Export wooden pallet / wooden case | Delivery Time | 10–30 Working Days |
| Size Range | OD6 – 530 mm/Wall thickness: 1 – 50 mm (custom); Length: 1 – 12 m | Grade | UNS N06455; W.Nr. 2.4610; DIN NiMo16Cr16Ti; GB NS335 / NS3305 |
| Delivery Condition | Solution annealed (1120–1180°C, water quenched) + pickled; or as‑machined per drawing | Payment Terms | T/T,L/C AT SIGHT |
| Surface | Black / peeled / bright / polished / ground / pickled | Place of Origin | China |
| Brand Name | HA Steel |
This series of Hastelloy C4 hollow bars are seamless thick-walled hollow blanks produced via hot extrusion & cold drawing forming process. After strict solution annealing and stress relief heat treatment, the alloy forms fully homogeneous single-phase austenite structure without harmful intermetallic precipitates.
Different from Hastelloy C276, C4 is specially optimized for oxidizing acid working conditions. Its ultra-low C & Si content guarantees stable metallurgy under repeated thermal cycles and welding heat zones. The seamless hollow structure saves raw material and reduces heavy internal boring workload for customers, widely processed into heat exchanger tubes, acid pipeline sleeves, reactor hollow components and pickling equipment tubular parts for chemical and nuclear industries.
| Grade | EN Standard No. | C ≤ | Si ≤ | Mn ≤ | P ≤ | S ≤ | Cr | Mo | Ti ≤ | Co ≤ | Fe ≤ | Ni |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hastelloy C4 | 2.4610 | 0.015 | 0.08 | 1.00 | 0.04 | 0.03 | 14.0–18.0 | 14.0–17.0 | 0.70 | 2.00 | 3.00 | Balance |
| Property | Hastelloy C4 Hollow Bar |
|---|---|
| Delivery Condition | Solution Annealed, Stress‑Relieved, Pickled / Bright Annealed Optional |
| Minimum Tensile Strength | ≥690 MPa (100 ksi) |
| Minimum 0.2% Yield Strength | ≥276 MPa (40 ksi) |
| Minimum Elongation (50mm gauge) | ≥40 % |
| Maximum Brinell Hardness | ≤220 HB |
1. Unmatched Thermal Stability
Ultra-low C & Si avoids harmful grain boundary precipitates after heating or welding, solves intergranular corrosion problems that C276 cannot handle under long thermal cycles.
2. Superior Oxidizing Acid Resistance
Perfect service life in pure nitric acid and mixed hydrofluoric-nitric acid, the standard material for stainless steel pickling production lines.
3. Full-Spectrum Local Corrosion Protection
Excellent pitting, crevice and stress cracking resistance in chloride and fluoride-containing corrosive fluids.
4. Seamless Hollow Cost Advantage
Ready hollow blank eliminates heavy deep boring on solid bar, shortens processing cycle and cuts raw material waste cost.
5. Easy Fabrication & Weldability
High ductility supports bending, flanging and complex forming; welded components keep full corrosion resistance without post-heat treatment.
We provide integrated hot extrusion, cold drawing and full precision machining services, produce finished tubular parts strictly per customer CAD/PDF drawings:
We supply Hastelloy C4 hollow blanks, heat exchanger tubes, valve sleeves and acid-resistant tubular fittings for global chemical & nuclear industrial clients.
Mill Test Certificate EN 10204 3.1 can be issued and delivered together with shipment documents before delivery.
Packing
- Inner: Plastic end caps + waterproof anti-rust polybag to protect inner bore & outer surface
- Outer: Reinforced fumigated wooden case with partition to prevent collision deformation
- Custom special export packaging available upon customer request
Lead Time
Normally 10 – 45 working days after receiving advance payment. Exact lead time depends on OD/ID wall size, order quantity and custom machining demands.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
1998
Total Annual:
>1-2 billion
Employee Number:
>200+
Ecer Certification：
Verified Supplier
HengAn Weiye Steel Group (HA Group) is a leading Chinese supplier of special steel, alloy materials, and precision machining services, with nearly 30 years of industry experience. The company integrates material sourcing, manufacturing, processing, and international trade, providing one-stop solutio... HengAn Weiye Steel Group (HA Group) is a leading Chinese supplier of special steel, alloy materials, and precision machining services, with nearly 30 years of industry experience. The company integrates material sourcing, manufacturing, processing, and international trade, providing one-stop solutio...
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