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JH AlloySteel Logo JH AlloySteel

Premium Alloy & Stainless Steel Solutions

Tianjin J&H Steel Trading Co., Ltd – Your trusted partner for high-performance alloy structural steel, tool steel, mold steel, spring steel, bearing steel, and stainless steel products. Engineered for excellence, delivered globally.

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About Tianjin J&H Steel

Tianjin J&H Steel Trading Co., Ltd is a professional supplier of high-quality alloy steels and stainless steels based in Tianjin, China. With years of industry experience and technical expertise, we specialize in providing customized steel solutions for machinery, automotive, aerospace, and industrial manufacturing sectors.

Our core strength lies in our ability to develop and produce steel products according to customer specifications. We master the core technology in alloy processing and heat treatment, ensuring every product meets international standards such as GB, DIN, SAE, and ASTM.

Advanced Equipment

State-of-the-art production lines ensure high efficiency and consistent quality.

Custom Development

We design and manufacture products tailored to your unique requirements.

Our Hot Products

Discover our range of high-performance alloy and stainless steel products, widely used in structural components, tooling, molds, springs, and bearings.

GB 34Cr2Ni2Mo DIN 34CrNiMo6 Steel Bar

GB 34Cr2Ni2Mo / DIN 34CrNiMo6

Hot Rolled Alloy Steel Bar for Machine Structural Parts

  • Standard: GB, DIN
  • Type: Structural Alloy Steel
  • Application: Heavy machinery components
SAE 8620H Alloy Steel Bar

SAE 8620H Alloy Steel

High-Purity Round Bar for Precision Engineering

  • Standard: SAE, ASTM
  • Type: Carburizing Alloy Steel
  • Features: Excellent toughness and wear resistance
AISI H13 SKD61 Mold Steel

AISI H13 / 1.2344 / SKD61

Hot Worked Alloy Mold Steel Round Bar

  • Standard: AISI, DIN, JIS
  • Type: Hot Work Tool Steel
  • Use: Die casting, forging, extrusion molds
P20 Mold Steel

P20 / 1.2330 Alloy Mold Steel

Pre-hardened Steel for Plastic Molds

  • Standard: AISI P20
  • Type: Plastic Mold Steel
  • Hardness: 28-32 HRC (pre-hardened)
DIN 17CrNiMo6 Steel

DIN 17CrNiMo6

Seamless Nickel Alloy Steel Round Bar

  • Standard: DIN
  • Type: Alloy Structural Steel
  • Features: High strength, good hardenability
SNCM439 AISI 4340 Steel

SNCM439 / AISI 4340

Forged Alloy Structural Steel Round Bar

  • Standard: JIS, SAE
  • Type: High-Strength Alloy Steel
  • Application: Aircraft, automotive shafts
SUP6 60Si2Mn Spring Steel

SUP6 / ASTM 9620 / 60Si2Mn

Hot Rolled Alloy Spring Steel Round Bar

  • Standard: JIS, ASTM
  • Type: Spring Steel
  • Properties: High fatigue resistance, elasticity
Alloy Bearing Steel

Alloy Bearing Steel

High-Precision Steel for Bearings and Rollers

  • Standards: GB, DIN, ISO
  • Type: High-Carbon Chromium Steel
  • Features: Wear-resistant, high hardness

Our Services

We go beyond supply — we deliver value through customization, technical support, and dedicated service.

Custom Product Development

We can develop and manufacture alloy steel products according to your specific technical requirements and drawings.

One-to-One Customized Service

Our team provides personalized support from inquiry to delivery, ensuring your needs are fully met.

Professional After-Sales Support

We offer technical guidance, quality assurance, and responsive support after delivery.

Why Choose JH AlloySteel?

  • Technical Expertise: Master the core technology in alloy steel production and heat treatment.
  • Customization: Develop products independently based on customer needs and specifications.
  • Quality Assurance: All products meet international standards (GB, DIN, SAE, ASTM).
  • Global Reach: Trusted by clients in machinery, automotive, and industrial sectors worldwide.
  • Efficient Production: Advanced equipment ensures high output and consistent quality.
Steel Production Line

Frequently Asked Questions

What standards do your steel products comply with?

Our products meet international standards including GB (China), DIN (Germany), SAE/ASTM (USA), JIS (Japan), and ISO specifications.

Can you customize alloy steel products?

Yes, we specialize in custom development and can produce steel bars, forgings, and components based on your technical drawings and requirements.

Do you accept small orders?

Yes, we support small and trial orders, especially for mold steels like H13 and P20, making it easier for new clients to evaluate our quality.

What is your delivery time?

Delivery time varies based on order size and customization, but typically ranges from 15 to 30 days after confirmation.

Get in Touch

Have a project or need a quote? Contact our team today for expert support and customized solutions.

Contact Person

Kayi Lin

Phone / WhatsApp

+86-18622524005

WeChat

andylin1984

Email

[email protected]

[email protected]

Location

Tianjin, China

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