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Fuhong – Your Reliable Partner for Special Steel

As a leading manufacturer and stockist of special steel, Fuhong Steel delivers premium quality materials that meet global standards including ISO, DIN, EN, ASTM, BS, and JIS. With decades of experience, we serve industries ranging from automotive and aerospace to tooling and energy.

Quality service is our commitment. Customer satisfaction is our pursuit. We ensure every product undergoes strict inspection and testing to guarantee reliability and performance in critical applications.

ISO 9001:2015 Certified Quality Management
5000+ Tons Daily Stock of 4140 Steel Round Bar
Custom Shapes: Round, Flat, Square, Shaft, Disc, Rings
One-Stop Processing: Heat Treatment, Machining, Cutting

ISO 9001:2015

Certified Quality System

Our Premium Steel Products

Explore our comprehensive range of special steel grades available in various shapes, sizes, and conditions – all meeting international standards.

AISI 1045 | C45 | S45C

Medium carbon steel ideal for shafts, gears, and mechanical components requiring good strength and wear resistance.

Standards: ASTM, DIN, JIS
Condition: Hot Rolled, Cold Drawn, QT
Diameter: 14–1000mm
Surface: Peeled, Polished, Turned

AISI 4130 | 25CrMo4 | SCM430

Chromium-molybdenum alloy steel with excellent weldability and high strength-to-weight ratio. Used in aerospace and automotive applications.

Standards: ASTM A29, DIN 1.7218, JIS SCM430
Tensile Strength: 70–90 KSI
Heat Treatment: Annealed, QT
Shapes: Round, Flat, Shaft

AISI 4140 | 42CrMo4 | SCM440

High-strength chromium-molybdenum steel widely used in tooling, oil & gas, and heavy machinery. Excellent toughness and fatigue resistance.

Stock: 5000+ Tons Daily
Condition: Hot Rolled, Forged, QT, Cold Drawn
Diameter: 14–1000mm
Surface: Bright, Peeled, Polished

AISI 4340 | 36CrNiMo4 | SNCM439

Nickel-chromium-molybdenum alloy steel with superior toughness and hardenability. Ideal for high-stress components.

Standards: ASTM, EN, JIS
Applications: Gears, Axles, Crankshafts
Heat Treatment: Quenched & Tempered
Shapes: Round, Block, Shaft

DIN 1.2344 | H13 | SKD61

Premium hot work tool steel with excellent thermal fatigue resistance. Widely used in die casting, extrusion, and forging dies.

Hardness: 48–52 HRC (Pre-hardened)
Applications: Die Casting Molds, Hot Forging
Standards: DIN, AISI, JIS
Processing: CNC Machining, Heat Treatment

AISI M2 | 1.3343 | SKH51

High-speed tool steel with excellent wear resistance and high-temperature hardness. Ideal for cutting tools and drills.

Composition: W-Mo-V-Co Alloy
Hardness: Up to 65 HRC
Applications: End Mills, Taps, Reamers
Standards: ASTM, DIN, JIS

DIN 1.2738 | P20+Ni

Pre-hardened plastic mold steel with excellent polishability and dimensional stability. Used in large mold bases and cores.

Hardness: 30–34 HRC
Features: High Toughness, Low Distortion
Applications: Injection Molds, Die Casting
Processing: Machining, EDM, Polishing

AISI 440C | X105CrMo17 | SUS440C

High-carbon martensitic stainless steel with excellent wear resistance and corrosion resistance. Ideal for bearings and valves.

Hardness: 58–60 HRC
Corrosion Resistance: High
Applications: Bearings, Valves, Cutlery
Standards: ASTM, DIN, JIS

Explore All Products

Why Choose Fuhong Steel?

We deliver unmatched quality, flexibility, and service in the special steel industry.

One-Stop Processing

From hot working and heat treatment to precision machining and cutting, we offer comprehensive in-house processing solutions tailored to your needs.

Traceable Quality Inspection

Every material is 100% inspected—chemically, mechanically, and non-destructively—to ensure full traceability and compliance with international standards.

Flexible Steelmaking

Whether your order is small or large, we adapt our production to meet your exact specifications and delivery timelines.

Various Shapes & Sizes

Round, flat, square, tube, shaft, disc, ring, block—we manufacture all standard and custom shapes to your drawing or sample.

Global Standards Compliance

We strictly follow ISO, DIN, EN, ASTM, BS, and JIS standards to ensure compatibility and reliability across international markets.

24/7 After-Sale Service

Our service doesn’t end at delivery. We provide continuous support and respond to inquiries within 8 hours—no spam, just solutions.

Frequently Asked Questions & Latest Insights

What is the difference between 4130 and 4140 steel?

4130 has lower carbon and chromium content than 4140, making it more weldable but less hard. 4140 offers higher strength and wear resistance, ideal for heavy-duty applications.

Do you offer custom machining services?

Yes, we provide full machining, heat treatment, and surface processing services to meet your exact specifications.

What certifications do you have?

We are ISO 9001:2015 certified and comply with ASTM, DIN, EN, JIS, and other international standards.

How fast can you deliver?

With 5000+ tons of 4140 steel in stock daily, we offer fast lead times. Custom orders are processed efficiently based on complexity.

Latest from Our Blog

Introduction to Chromium-Molybdenum Steel

4130 vs 4120: Composition, properties, and applications.

Published: Sep 30, 2025

How to Choose 4140 and 4142 Steel?

Comparing strength, hardness, and use cases.

Published: Sep 28, 2025

34CrNiMo6 vs 30CrNiMo8

The selection game for high-strength alloy steels.

Published: Sep 27, 2025

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One-Stop Solution for Quality Special Steel