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Nickel · Specialty · Engineered Alloys

Specialty alloy materials, sourced and certified for the world's most demanding applications.

Shanghai Hangbo Alloy Group supplies and exports nickel-based alloys, premium stainless steels, duplex and precipitation-hardening grades — from corrosion-resistant Inconel, Monel and Hastelloy to engineering grades such as XM-25 (UNS S45000). Plate, bar, tube, wire, forgings, and cut-to-drawing components.

ISO 9001 EN 10204 3.1 ASTM / ASME / AMS NACE MR0175
200+Alloy grades in catalogue
0.5–200 mmPlate & sheet thickness
24 hTypical RFQ response
20+Export destinations
Credentials ISO 9001:2015 GJB 9001C-2017 Established 2012 Registered capital ¥20M View certificates →
Product range

Five material families that cover extreme corrosion, high temperature and high strength.

Every grade is supplied against the international standard you specify, with the documentation package your QA team requires.

Ni-base

Nickel-Based Alloys

Corrosion- and heat-resistant nickel alloys for chemical, petrochemical, marine and nuclear service.

  • Inconel 600 / 601 / 625 / 690 / 693 / 718 / X-750
  • Incoloy 800 / 800H / 825 / 925
  • Monel 400 / K-500 · Nickel 200 / 201
  • Hastelloy C-276 / C-22 / B-2 · Alloy 20

See grades & specs

Super-austenitic

Premium Stainless Steels

High-molybdenum austenitic and super-austenitic grades for chloride and acid environments.

  • 904L (N08904) · 254SMO (S31254) · 6Mo
  • 317L · 310S · 321 / 347 · 20Cb-3
  • Sanicro 28 · AL-6XN (N08367)
  • PREN > 40 options for seawater duty

See grades & specs

Duplex

Duplex & Super Duplex

High-strength, stress-corrosion-cracking-resistant grades for offshore, desalination and pulp & paper.

  • 2205 (S32205 / S31803) · 2507 (S32750)
  • 2304 (S32304) · Zeron 100 (S32760)
  • LDX 2101 · Ferralium 255
  • PREN 34–43, yield 450–550 MPa

See grades & specs

PH grades

Precipitation-Hardening Stainless

Martensitic PH grades combining high strength with useful corrosion resistance — valve, shaft and aerospace duty.

  • XM-25 / Custom 450 (UNS S45000)
  • 17-4PH (S17400) · 15-5PH (S15500)
  • Custom 455 (S45500) · 13-8Mo (S13800)
  • 17-7PH (S17700) · A286 (S66286)

See grades & specs

Forms

Semi-Finished Products

Mill-direct semi-finished material in the sizes your production needs, with cut-to-length and cut-to-drawing service.

  • Plate & sheet · 0.5–200 mm
  • Round / square / hex bar · Ø5–500 mm
  • Seamless & welded tube, pipe, fittings
  • Wire, strip, coil, forgings, flanges

See forms & sizes

Value-add

Cutting, Machining & Welding

In-house and partner processing so you receive parts, not just material — plus moulds and welding equipment supply.

  • Waterjet / plasma / laser cutting
  • CNC turning, milling, sawing, bevelling
  • Moulds, dies and tooling
  • Welding machines & consumables

See capabilities

Grade spotlight

Two grades that solve problems most suppliers cannot.

We keep technical depth on the difficult grades — the ones where the wrong chemistry costs a shutdown.

Inconel 693

UNS N06693 · 2.4650 · Ni-Cr-Fe-Al

A high-chromium nickel alloy developed for metal-dusting resistance. It performs in both oxidising and reducing high-temperature atmospheres where conventional alloys fail — the grade of choice for reformer and syngas equipment.

Nickel (Ni), balance~58 %
Chromium (Cr)27.0 – 31.0 %
Iron (Fe)2.5 – 6.0 %
Aluminium (Al)2.5 – 4.0 %
Typical supplyPlate, bar, seamless tube
Key standardsASTM B166 / B167 / B168
Main applicationsReformers, syngas, fired heaters, burner parts

Enquire about N06693

XM-25 / Custom 450

UNS S45000 · AMS 5773 · 17-4PH family

A martensitic precipitation-hardening stainless steel that delivers roughly twice the yield strength of 316 while retaining useful corrosion resistance and good fabrication behaviour. Fully annealed it machines and welds easily; a single low-temperature ageing treatment takes it to high strength.

Chromium (Cr)14.0 – 16.0 %
Nickel (Ni)5.0 – 7.0 %
Copper (Cu)1.25 – 1.75 %
Molybdenum (Mo)0.50 – 1.00 %
Yield strength (H900)≈ 1,170 MPa
Key standardsASTM A564 · AMS 5773
Main applicationsShafts, valves, gears, aerospace hardware

Enquire about S45000

About us

Hangbo Alloy Group, Shanghai — trading specialty alloys since 2012.

We supply nickel-based alloys, high-alloy stainless steels, duplex and precipitation-hardening grades, plus mould and tooling steels, with in-house cutting, machining and welding-equipment capability. Every shipment carries full mill traceability.

Established
2012 · Shanghai
Registered capital
CNY 20,000,000
USCC / tax ID
91310117051282850U
Certifications
ISO 9001:2015 · GJB 9001C-2017

See our certificates

Why buyers work with us

A trading partner that reads the standard, not just the price list.

Specialty alloys are bought on trust in the paperwork. Our job is to make sure the heat number, the certificate and the physical material all tell the same story — and that your engineers get a straight answer on the technical points first.

  • Technical discussion before quotation. We confirm grade, form, standard and heat treatment with your engineers, then price against a fixed scope.
  • Traceable documentation. EN 10204 3.1 or 3.2 MTC, heat-number marking, and third-party inspection on request.
  • Honest availability. If a grade is mill-order with a minimum tonnage, we say so upfront rather than promising stock we do not hold.
  • Export logistics handled. Fumigation-free packing, seaworthy crating, HS classification and full export documentation.

Start a technical discussion

Applications we serve

Where our materials end up:

Oil & Gas

Wellhead, downhole, sour service

Chemical & Petrochemical

Reactors, heat exchangers, columns

Power Generation

FGD, superheater, nuclear auxiliaries

Marine & Offshore

Seawater systems, desalination

Aerospace & Defence

Fasteners, actuators, airframe hardware

Industrial Moulding

Moulds, dies, tooling steels

How an order runs

From first email to delivered material in four steps.

Enquiry & technical review

Send grade, form, size, quantity and standard. We confirm feasibility and flag any points that need clarification.

Quotation against a fixed scope

Once the specification is locked we quote price, lead time, packing and Incoterms — no moving target.

Production & inspection

Mill order or stock release, PMI verification, dimensional check, and third-party inspection if you require it.

Documentation & shipment

MTC, packing list, invoice, certificate of origin, and a shipment plan you can track.

Buyer FAQ

Straight answers to the questions overseas buyers ask most.

  1. 01

    What is your minimum order quantity?

    It depends on the grade and the product form. Mill-finished specialty grades (for example N06693) are produced to order with a per-ton minimum; commonly stocked nickel alloys and stainless grades can start from around 100 kg. We always state the MOQ upfront, before we quote.

  2. 02

    Do you hold N06693 or XM-25 in stock?

    N06693 (Inconel 693) is not a stock item — it is mill-order only, with a per-ton minimum and a typical lead time of 6–10 weeks. XM-25 / S45000 is available in bar and plate on shorter notice. We will never promise stock we do not hold.

  3. 03

    Which standards can you supply against?

    ASTM, ASME, AMS, EN, DIN, JIS and GB are all routine. Tell us the standard and the revision year with your enquiry — the mill test certificate will be issued against the standard you specify.

  4. 04

    What documentation ships with the material?

    An EN 10204 3.1 mill test certificate with the full chemical analysis and mechanical properties of the actual heat, commercial invoice and packing list. 3.2 certificates via a nominated third party (SGS, BV, TÜV) are available on request.

Knowledge & insights

Reading that helps you pick the right alloy

Practical technical articles from our engineers — the same questions we get asked every week, written down so you can scan them before you email us. Updated as we add new ones.

Send us the grade and the drawing. We will do the rest.

Technical questions answered first, quotation second — so the number you receive is the number that holds.