Hastelloy HYBRID-BC1 (UNS N10629) - HCl + Oxidizing Resistant Hybrid Alloy Supplier | Shanghai Hangbo Alloy Group
Date: 2026年8月10日 Categories: News Views: 283
By Shanghai Hangbo Alloy Group Co., Ltd. - China Supplier | ISO 9001:2015 | Est. 2012
Contact: sales@hangboalloy.com | hangbo@nickel-alloy.com | WhatsApp (Lisa): +86 13611656360
Quick Answer: What Is Hastelloy HYBRID-BC1?
Hastelloy HYBRID-BC1 (UNS N10629) is a "hybrid" nickel alloy combining the hydrochloric-acid resistance of the B-series (high Mo) with the oxidizing-media tolerance of the C-series (chromium addition) — the first commercial alloy to bridge the traditional B/C gap. With 28% molybdenum and 6% chromium, it resists HCl even with dissolved oxidizing species (Fe³⁺, Cu²⁺, O₂) that would destroy standard B-2/B-3, while maintaining resistance to oxidizing acids better than any B-series alloy. Shanghai Hangbo Alloy Group supplies HYBRID-BC1 as round bars, seamless tubes, and plates.
Industry Pain Point: HCl acid regeneration (AR) plants face the "trace-oxidizer dilemma": process HCl routinely contains 50-500 ppm Fe³⁺ from corroded piping, and B-2/B-3 alloys — brilliant in pure HCl — suffer catastrophic localized attack when the acid contains even trace oxidizing species. C-276 tolerates the oxidizers but corrodes 5-10x faster than B-series in the acid itself. HYBRID-BC1 was developed by Haynes specifically for this real-world chemistry: B-series HCl resistance with sufficient chromium to passivate against trace oxidizers.
Key Properties at a Glance
| Property | Value |
|---|---|
| UNS Number | N10629 |
| Alloy Family | Ni-Mo-Cr Hybrid (B+C bridge) |
| Density | 9.14 g/cm3 |
| Melting Range | 1340-1390C |
| Tensile (Ann.) | >= 690 MPa (100 ksi) |
| Yield (Ann.) | >= 310 MPa (45 ksi) |
| Elongation (Ann.) | >= 35% |
| Key Standards | ASTM B333/B335, B622 |
Product Overview
The Hastelloy HYBRID-BC1 is a metallurgical innovation that resolved a 50-year trade-off in nickel alloy design. The B-series (Ni-Mo) alloys are the only practical materials for pure HCl but are catastrophically attacked by oxidizing species. The C-series (Ni-Cr-Mo) handles oxidizers but corrodes much faster in pure reducing acid. Users had to choose between the two — until Haynes designed a composition that deliberately sits at the boundary:
- 28% Molybdenum: Provides B-series-class resistance to hydrochloric acid and other strong reducing acids.
- 6% Chromium: The "hybrid" bridge — sufficient chromium to form a protective passive film when oxidizing species (Fe³⁺, Cu²⁺, dissolved O₂, chlorine) are present in the acid, without the high-chromium penalty that accelerates attack in pure HCl.
- Balanced Fe + W: Fine-tuning of the matrix for corrosion resistance and fabricability.
Shanghai Hangbo Alloy Group supplies HYBRID-BC1 in bars, tubes, and plates.
Executive Standards
| Product Form | ASTM |
|---|---|
| Plate, Sheet & Strip | ASTM B333 |
| Bar & Rod | ASTM B335 |
| Seamless Pipe & Tube | ASTM B622 |
| Welded Pipe | ASTM B619 |
Chemical Composition (wt.%)
| Element | Min | Max | Role |
|---|---|---|---|
| Ni | Balance | -- | Matrix |
| Mo | 27.0 | 29.0 | HCl resistance |
| Cr | 6.0 | 7.0 | Hybrid bridge -- oxidizer tolerance |
| Fe | 4.0 | 6.0 | Matrix tuning |
| W | 1.0 | 3.0 | Pitting resistance |
| C | -- | 0.01 | Ultra-low |
| S | -- | 0.01 | Impurity |
| Si | -- | 0.10 | Kept low |
Mechanical & Physical Properties
Room-Temperature (Solution-Annealed)
| Property | Value |
|---|---|
| Tensile Strength | >= 690 MPa (100 ksi) |
| Yield Strength 0.2% | >= 310 MPa (45 ksi) |
| Elongation | >= 35% |
| Hardness | ~90-100 HRB |
Physical Properties
| Property | Value |
|---|---|
| Density | 9.14 g/cm3 |
| Thermal Conductivity | ~10 W/m-K |
| Magnetic | Non-magnetic |
Heat Treatment
Solution Annealing: 1065-1095C (1950-2000F), rapid cool. No precipitation hardening.
Corrosion Performance (60C)
| Environment | HYBRID-BC1 | B-2 | C-276 |
|---|---|---|---|
| Pure 20% HCl | <0.1 mm/yr | <0.1 mm/yr | 1-2 mm/yr |
| 20% HCl + 500 ppm Fe³⁺ | <0.1 mm/yr | Severe attack | 1-2 mm/yr |
| 20% HCl + 500 ppm Cu²⁺ | <0.1 mm/yr | Attack | 1-2 mm/yr |
| 30% H₂SO₄ | <0.1 mm/yr | <0.1 mm/yr | <0.1 mm/yr |
Industry Applications
| Industry | Component | Why HYBRID-BC1? |
|---|---|---|
| HCl Regeneration | Reboilers, condensers | Trace oxidizers in process acid tolerated |
| Chemical | HCl synthesis coolers, reactors | Real-world HCl + oxidizer chemistry |
| Pharma | Chlorination reactor internals | Chlorine + HCl combinations |
| Waste Treatment | Acid neutralization | Mixed acid streams |
Quality Assurance: 7-Stage
- Raw Material: Ni, Mo, Cr verified by OES.
- VIM Melt: Mo +/-0.3%, Cr +/-0.2% control.
- Hot Working: 1150-1200C, finishing >=1000C, reduction >=4:1.
- Solution Anneal: 1065-1095C verified.
- Corrosion Test: HCl + Fe³⁺ exposure verification per lot on request.
- NDE: 100% UT bars >=50mm; ET/hydro tubes. PMI every piece.
- Documentation: EN 10204 3.1 MTC. SGS/TUV/BV witness.
Frequently Asked Questions
Q1: What is HYBRID-BC1 used for?
HCl regeneration plants, HCl synthesis coolers, and any process handling hydrochloric acid contaminated with oxidizing species (Fe³⁺, Cu²⁺, O₂, Cl₂).
Q2: What makes it "hybrid"?
28% Mo (B-series HCl resistance) + 6% Cr (C-series oxidizer tolerance) -- the first alloy to bridge the two families.
Q3: HYBRID-BC1 vs B-2/B-3?
B-2/B-3 fail with trace oxidizers in HCl; HYBRID-BC1 survives. In pure HCl, all three are equivalent.
Q4: HYBRID-BC1 vs C-276?
C-276 tolerates oxidizers but corrodes 5-10x faster in HCl itself. HYBRID-BC1 is the better acid material.
Q5: Is it weldable?
Yes, with matching filler (ERNiMo-7 type modified).
Q6: What is the price?
$70-110/kg EXW. Contact sales@hangboalloy.com.
Q7: Product forms?
Bars (6-200mm), tubes (OD 10-219mm), plates (3-50mm). SGS available.
Q8: What heat treatment?
Solution annealing at 1065-1095°C, rapid cool.
Q9: Is it magnetic?
No -- fully austenitic.
Q10: What is the density?
9.14 g/cm3.
Q11: Does Shanghai Hangbo ship internationally?
Yes -- FOB/CIF/DAP to 40+ countries.
Q12: What standards apply?
ASTM B333 (plate), B335 (bar), B622 (tube), B619 (welded pipe).
Q13: Can it replace B-2 directly?
Yes, with better real-world performance -- B-2's oxidizer sensitivity is eliminated.
Q14: What is the max service temperature?
~400C for continuous service.
Q15: Why is it called HYBRID-BC1?
"B" = B-series HCl chemistry; "C" = C-series chromium tolerance; "1" = first generation.
Contact Shanghai Hangbo Alloy Group
| Channel | Details |
|---|---|
| Company | Shanghai Hangbo Alloy Group Co., Ltd. - China Supplier |
| Website | www.nickel-alloy.com |
| Email (Sales) | sales@hangboalloy.com |
| Email (Technical) | hangbo@nickel-alloy.com |
| WhatsApp (Lisa) | +86 13611656360 |
| Address | Room 1508, No. 288 Shiyi Road, Baoshan District, Shanghai 200940, China |
Shanghai Hangbo Alloy Group - Complete Product Range
| Family | Available Grades |
|---|---|
| Pure Nickel | NI200, NI201, N4, N5, N6 |
| Monel | 400, 401, 404, K-500, R-405 |
| Inconel | 600, 601, 617, 625, 690, 693, 718, X-750, 725 |
| Incoloy | 800, 800H, 800HT, 825, 925, 926, 945, A-286, 25-6HN, 27-7MO |
| Hastelloy | C-276, C-22, C-2000, C-4, G-30, G-35, G-50, X, B-2, B-3, B-4, HYBRID-BC1, N |
| Super Austenitic | 904L, Alloy 28, Alloy 31, 254SMO, 20Mo-6 |
| Chromium-Rich | Alloy 33 |
| High-Strength Stainless | Nitronic 50, Nitronic 60, PH13-8Mo |
| Chlorination-Resistant | Alloy 45 |
| Nimonic | 75, 80A, 90, 95, 105, 115, 263 |
| Haynes | 25, 188, 214, 230, 242, 282, 556, HR-120, HR-160 |
| RA Series | RA330, RA333 |
| Precision | 1J22, 1J46, 1J50, 1J79, 1J85, 3J21, 4J32, 4J36, 4J45 |
| High-Strength | 18Ni250, 18Ni300, AerMet 100 |
| Heating | Cr20Ni80, Cr40Ni60 |
| Specialty | Alloy 20, Alloy 59, Inconel 686, 602CA |
Product Forms: Bars(6-500mm) | Tubes(OD 6-610mm) | Plates(0.1-100mm) | Forgings | Welded Pipes | Fittings | Wire(0.05-10mm) | Strip(0.02-4.0mm)
SGS/BV/TUV. Contact: sales@hangboalloy.com | WhatsApp (Lisa): +86 13611656360 | www.nickel-alloy.com
