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Premium Steel Solutions for Global Industries

High-quality stainless steel plates, structural beams, carbon steel pipes, and precision wire rods engineered to meet ASTM, JIS, and EN standards. Trusted by construction, manufacturing, and infrastructure sectors worldwide.

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About SHUNYUN

A trusted manufacturer and supplier of high-performance steel products with global reach and adherence to international quality standards.

Engineering Strength, Delivering Trust

Shanghai Shunyun Industrial Co., Ltd. (operating as SYSTEEL GROUP) specializes in the production and distribution of structural steel, stainless steel plates, carbon steel sheets, and precision wire rods. Our products are engineered for durability, corrosion resistance, and high tensile strength—meeting the rigorous demands of construction, shipbuilding, machinery, and infrastructure development.

We adhere to international standards including ASTM, JIS, and EN, ensuring every product is backed by mill test certificates (MTC), ISO 9001 certification, and third-party inspection compliance (TPI).

15+
Years in Industry
50+
Global Markets
Steel fabrication Steel beams Steel plates Industrial steel

Our Product Range

Precision-engineered steel products designed for strength, durability, and compliance with global standards.

Galvanized Steel Plate

Galvanized Steel Plate

  • Thickness: 0.8–300 mm
  • Width: 1250–2200 mm (custom)
  • Standards: ASTM A36, JIS SS400, EN S235JR
  • Surface: Carbon black, mild steel
  • Applications: Construction, shipbuilding, machinery
Carbon Steel Plate

Carbon Steel Plate

  • Hot Rolled: 3–300 mm
  • Cold Rolled: 0.8–3 mm
  • Standards: ASTM A36, A572-GR50
  • Surface: Mild steel, carbon black
  • MOQ: 1 Ton
Stainless Steel Plate

Stainless Steel Plate

  • Types: 316L, 409, AISI series
  • Thickness: 0.8 mm and above
  • Standards: ASTM, JIS, EN
  • Corrosion-resistant, high strength
  • Ideal for harsh environments
C Channel Steel

C Channel Steel

  • Premium-grade structural steel
  • Excellent load-bearing capacity
  • Corrosion, impact, and wear resistant
  • Used in construction & industrial frames
  • Custom lengths available
I Beam

I Beam (Universal Beam)

  • Web: 4.5–17 mm | Flange: 7.6–22 mm
  • Height: 100–630 mm
  • Length: 6M, 9M, 12M
  • Standards: ASTM A36, JIS SS400
  • Galvanized or painted finish
Checkered Plate

Checkered Steel Plate

  • Anti-slip surface for safety
  • Durable, wear-resistant
  • Used in platforms, stairs, vehicles
  • Custom dimensions available
  • High tensile strength

Seamless Square Pipe

  • No welds, superior pressure resistance
  • Hot rolled or cold drawn
  • High precision, uniform shape
  • Applications: Machinery, automotive
  • Corrosion-resistant

Carbon Steel Wire Rod

  • Grades: SAE1006–1080, Q195, SWRH
  • Diameter: 1–50 mm
  • Tolerance: ±0.3 mm
  • Hot rolled, ISO 9001 certified
  • MOQ: 1 Ton

Stainless Steel Wire Rod

  • Type: Drawn Wire, AISI standard
  • Corrosion and wear resistant
  • Used in fasteners, springs
  • Mill test certificate provided
  • Custom cutting available

Angle Bar & Flat Bar

  • Structural support components
  • Available in various sizes
  • ASTM, JIS, EN compliant
  • Galvanization and painting options
  • Used in frames and brackets
View All Products

Why Choose SYSTEEL GROUP?

Quality Assurance

ISO 9001 certified with mill test certificates and third-party inspections (TPI) for every shipment.

Global Reach

Serving over 50 countries with reliable logistics and export documentation support.

Custom Fabrication

Cutting, bending, hole punching, welding, and galvanizing services available.

Fast Delivery

7 working days after deposit or LC confirmation. Stock available for urgent needs.

100K+
Tons Shipped Annually
50+
Countries Served
99.8%
On-Time Delivery Rate
1 Ton
Minimum Order Quantity

Frequently Asked Questions

What standards do your steel products meet?

Our products comply with ASTM (A36, A572-GR50), JIS (SS400, SS540), and EN (S235JR, S355JR, S355J2) standards. Mill test certificates are provided with every shipment.

What is the minimum order quantity (MOQ)?

The standard MOQ is 1 ton for most products, including wire rods and plates. We accommodate smaller trial orders upon request.

Do you offer custom fabrication?

Yes, we provide cutting, bending, hole punching, welding, galvanizing, and painting services based on project specifications.

What are your payment terms?

We accept L/C, D/A, D/P, T/T, and Western Union. Terms are negotiable based on order volume and customer history.

How long does delivery take?

Standard delivery is within 7 working days after receiving LC or deposit. Stock items may ship faster.

Get in Touch

For inquiries, quotes, or technical support, visit our official website to connect with our team.

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