Hastelloy® Alloy Round Bar (C-276, C-22, B-2, etc.)
✓ Acid & Chloride Dominance: Resists 40% HCl at 60°C (140°F) and 50% H₂SO₄ at 90°C (194°F) with **<0.05mm/year corrosion rate** (C-276).
✓ Thermal Stability: Maintains tensile strength up to 1,100°C (2,012°F) under short-term exposure (C-22).
✓ Precision Machinability: Tight **±0.05mm diameter tolerance** and Ra ≤1.6μm surface finish for CNC turning, milling, and grinding.
✓ Oxidation & Sulfidation Resistance: Immune to nitric acid, wet chlorine gas, and H₂S-rich environments.
Hastelloy® Alloy Round Bar (C-276, C-22, B-2, etc.)
Engineered for industries demanding superior resistance to extreme chemical corrosion, high-temperature stress, and precision machining, Hastelloy® alloy round bars excel in the most aggressive environments. With nickel-molybdenum-chromium matrices (e.g., C-276: Ni-57%, Mo-16%, Cr-15.5%), these bars outperform stainless steel and titanium in HCl, H₂SO₄, and chloride-rich media. Certified to ASTM B574, ASME SB574, and NACE MR0175, they deliver 10x longer service life in chemical processing, oil & gas, and nuclear applications.
- Diameter: 5mm–300mm (hot-rolled/cold-finished)
- Length: 1m–6m (standard) / custom-cut to 12m
- Surface Finishes: Hot Rolled, Cold Drawn, Polished (Ra ≤0.8μm)
- Mechanical Properties (C-276): Yield Strength ≥415 MPa | Tensile Strength ≥790 MPa | Elongation ≥40% | Hardness ≤100 HRB
| Parameter Category | Hastelloy C-276 | Hastelloy C-22 | Hastelloy B-2 | Hastelloy X |
|---|---|---|---|---|
| Material Standard | ASTM B574, UNS N10276 | ASTM B574, UNS N06022 | ASTM B335, UNS N10665 | ASTM B572, UNS N06002 |
| Chemical Composition (%) | Ni: 57–63, Cr: 14.5–16.5, Mo: 15–17, Fe: 4–7, W: 3–4.5, Co: ≤2.5, C: ≤0.01 | Ni: 56–58, Cr: 20–22.5, Mo: 12.5–14.5, Fe: 2–6, W: 2.5–3.5, Co: ≤2.5, C: ≤0.015 | Ni: 65–70, Mo: 26–30, Fe: 2.0 max, Cr: 1.0 max, C: ≤0.02 | Ni: 47–52, Cr: 20.5–23, Mo: 8–10, Fe: 17–20, Co: 0.5–2.5, W: 0.2–1.0 |
| Tensile Strength (MPa) | 690–1000 | 690–1000 | 760–1030 | 655–965 |
| Yield Strength (MPa) | ≥315 | ≥310 | ≥350 | ≥240 |
| Elongation (%) | ≥40 (in 50mm) | ≥45 (in 50mm) | ≥40 (in 50mm) | ≥35 (in 50mm) |
| Hardness | Rockwell B95–100 | Rockwell B95–100 | Rockwell B95–100 | Rockwell B85–95 |
| Density (g/cm³) | 8.89 | 8.69 | 9.24 | 8.28 |
| Melting Range (°C) | 1325–1370 | 1350–1390 | 1330–1380 | 1290–1385 |
| Thermal Conductivity (W/m·K) | 10.4 (20°C) | 10.5 (20°C) | 11.0 (20°C) | 12.1 (20°C) |
| Thermal Expansion (10⁻⁶/°C) | 12.6 (20–200°C) | 12.3 (20–200°C) | 10.3 (20–200°C) | 14.4 (20–1000°C) |
| Corrosion Resistance | Resists HCl, H₂SO₄, Cl₂, pitting, and crevice corrosion. | Superior in mixed acids, oxidizing chlorides, and sulfides. | Excellent in HCl, H₂SO₄ (reducing conditions). Poor in oxidizing media. | Outstanding oxidation resistance up to 1200°C. Resists carburization. |
| Heat Treatment | Solution Annealing: 1121–1177°C (rapid cooling). | Same as C-276. | Annealing: 1038–1121°C (rapid cooling). | Solution Annealing: 1121–1232°C (air cooling). |
| Surface Finishes | Hot Rolled, Cold Drawn, Peeled, Polished (Ra ≤0.8μm). | Same as C-276. | Hot Rolled, Annealed & Pickled. | Hot Rolled, Annealed & Descaled. |
| Diameter Range (mm) | 5–300 | 5–300 | 5–200 | 5–250 |
| Length (m) | 3–6 (standard), Custom up to 12. | Same as C-276. | 3–6 (standard) | 3–6 (standard) |
| Key Applications | Chemical pumps, valves, reactor internals, marine shafts. | Nuclear waste containers, pickling equipment, flue gas scrubbers. | HCl acid evaporators, acetic acid reactors. | Gas turbine components, industrial furnace parts, aerospace fasteners. |
Hastelloy® Alloy Round Bar (C-276, C-22, B-2, etc.) Applications
| Industry | Critical Use Cases | Hastelloy® Round Bar Advantage |
|---|---|---|
| Chemical Processing | Reactor agitator shafts, acid pump valves | C-276 resists 30% HCl at 70°C with zero pitting. |
| Oil & Gas | Downhole tool components, sour gas valves | C-22 withstands H₂S >10,000 ppm at 200°C (392°F). |
| Nuclear | Fuel rod clamps, reprocessing equipment | B-2 alloy immune to nitric acid radiation loops. |
| Pharmaceutical | High-purity reactor shafts, solvent lines | Electropolished C-276 meets FDA cGMP standards. |
Hastelloy® Alloy Round Bar (C-276, C-22, B-2, etc.) Product Packaging
Our Hastelloy® Alloy Round Bars (Grades C-276, C-22, ASTM B574/ASME SB-574 compliant) are engineered for extreme environments in chemical processing, nuclear fuel reprocessing, and offshore oil & gas systems. Renowned for their unmatched resistance to pitting, chloride-induced stress corrosion, and oxidizing acids, these bars are protected by aerospace-grade packaging and logistics protocols compliant with NACE MR0175, ISO 15156, and MIL-STD-129 standards to ensure flawless surface integrity and dimensional stability during global transit.
Small Bars (<50mm)
Bundled with steel straps + VCI-coated wraps, crated on reinforced wooden pallets.
Large Bars (≥50mm)
End caps + edge protectors, stacked in custom steel racks with desiccant units.
Anti-Scratch Sleeving
Silicone-impregnated fabric for polished/ground surfaces.
RFID Tags
Embedded tracking chips with real-time material certification access.
Hastelloy® Alloy Round Bar (C-276, C-22, B-2, etc.) Shipping
Sea transport
40HQ container (loading capacity 28 tons) / bulk carrier (LCL minimum 1 ton)
Air transport
reach major airports around the world within 7 days (DDP/DAP terms)
Land transport
door-to-door within China (qualification for dangerous goods transportation)
Our Services
We guarantee global door-to-door delivery within 7–15 business days via partnerships with DHL, Maersk, and UPS.
Why Choose Us?
Where Precision Meets Partnership，25 years of focus on metal material science，Not only a supplier, but also your engineering consultant，Fast and zero compromise，Sustainable trust cycle。
Full specifications and customization
Unlimited size, support non-standard cutting. Multiple surface treatments.
Professional capabilities
25 Years Of Focus On Metal Materials Science
Certification & Quality Assurance
Products comply with international standards such as ASTM, EN, JIS, etc., and are 100% tested from raw materials to finished products
Fast delivery & global supply
Global urgent orders are delivered within 15 days. One-stop service
FAQ
Q1: How does Hastelloy C-276 compare to Inconel 625 in HCl service?
A: C-276 offers 60% lower corrosion rate in 20% HCl at 50°C, while Inconel 625 excels in higher-temperature oxidation resistance.
Q2: What machining parameters prevent work hardening?
A: Use carbide tools with cutting speeds ≤80 m/min and coolant flow ≥10 L/min for Grades C-276/C-22.
Q3: Are bars certified for nuclear reactor components?
Full compliance includes:
- ASME Section III Division 1
- RCC-MRx (2015)
- NACE MR0175/ISO 15156
Q4: What’s the minimum order quantity (MOQ)?
Standard stock: 1 ton MOQ.
Custom sizes/tempers: 5 tons MOQ (lead time 35 days).
Q5: How to verify material authenticity?
Scan QR codes with HastelloyGuard™ app to access:
- XRF validation against PMI certificates
- Third-party SGS/BV test reports
- Blockchain-validated ASTM B574 mill certs
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