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Premium Steel
Construction
Products
Supplying high-quality steel rebar, coil, sheet, tube, wire and stainless steel to 50+ countries. Factory-direct pricing with global shipping.
Steel RebarStructural Reinforcement
Steel Rebar
High-strength deformed steel rebar for reinforced concrete structures. Our rebar is produced using advanced rolling technology, offering superior bond strength, excellent ductility, and consistent mechanical properties. Widely used in bridges, high-rise buildings, tunnels, and infrastructure projects worldwide.
| Grade | Size / Thickness | Tensile Strength | Standard |
|---|---|---|---|
| HRB400 | Ø6–Ø50mm | 540 MPa | GB/T 1499.2 |
| HRB500 | Ø8–Ø40mm | 630 MPa | GB/T 1499.2 |
| ASTM A615 Gr60 | #3–#18 | 620 MPa | ASTM A615 |
| BS4449 B500B | Ø8–Ø32mm | 540 MPa | BS 4449 |
Applications
Hot & Cold Rolled
Steel Coil
Premium hot-rolled and cold-rolled steel coils for manufacturing, construction, and industrial applications. Our coils feature excellent surface quality, tight dimensional tolerances, and consistent mechanical properties. Available in various grades and widths to meet diverse processing requirements.
| Grade | Size / Thickness | Tensile Strength | Standard |
|---|---|---|---|
| Q235B | 1.5–16mm × 600–2000mm | 370–500 MPa | GB/T 700 |
| Q345B | 2.0–20mm × 600–2000mm | 470–630 MPa | GB/T 1591 |
| SPHC | 1.2–12mm × 600–1800mm | 270 MPa min | JIS G3131 |
| SS400 | 1.5–16mm × 600–2000mm | 400–510 MPa | JIS G3101 |
Applications
Corrosion Resistant
Stainless Steel
High-quality austenitic, ferritic, and duplex stainless steel products offering exceptional corrosion resistance, hygiene, and aesthetic appeal. Ideal for food processing, chemical, marine, and architectural applications where durability and appearance are paramount.
| Grade | Size / Thickness | Tensile Strength | Standard |
|---|---|---|---|
| 304 / 304L | 0.3–80mm | 515 MPa min | ASTM A240 |
| 316 / 316L | 0.3–60mm | 515 MPa min | ASTM A240 |
| 430 | 0.3–50mm | 450 MPa min | ASTM A240 |
| 2205 Duplex | 1.0–80mm | 620 MPa min | ASTM A240 |
Applications
Flat Rolled Products
Steel Sheet
Versatile steel sheets and plates for structural, pressure vessel, and general engineering applications. Available in hot-rolled, cold-rolled, galvanized, and color-coated finishes. Our sheets offer precise thickness control, excellent flatness, and superior surface quality.
| Grade | Size / Thickness | Tensile Strength | Standard |
|---|---|---|---|
| Q235A/B | 3–200mm × up to 3000mm | 370–500 MPa | GB/T 700 |
| A36 | 3–150mm × up to 3000mm | 400–550 MPa | ASTM A36 |
| S235JR | 3–100mm × up to 3000mm | 360–510 MPa | EN 10025 |
| DX51D (Galvanized) | 0.3–3.0mm × up to 1500mm | 270 MPa min | EN 10346 |
Applications
Seamless & Welded
Steel Tube
High-precision seamless and welded steel tubes for structural, mechanical, and fluid transport applications. Our tubes are manufactured with strict dimensional control and surface treatment options including galvanizing, painting, and anti-corrosion coating.
| Grade | Size / Thickness | Tensile Strength | Standard |
|---|---|---|---|
| Q235B (ERW) | OD 21.3–508mm, WT 1.5–20mm | 370–500 MPa | GB/T 13793 |
| 20# Seamless | OD 10–630mm, WT 1–80mm | 410 MPa min | GB/T 8162 |
| ASTM A53 Gr.B | NPS 1/8–26" | 415 MPa min | ASTM A53 |
| EN 10210 S355J2H | OD 21.3–610mm | 470–630 MPa | EN 10210 |
Applications
High Tensile Wire Products
Steel Wire
High-quality steel wire and wire rod products for construction, manufacturing, and industrial applications. Our wire products include binding wire, PC wire, spring wire, and galvanized wire, all manufactured to precise tensile strength and dimensional specifications.
| Grade | Size / Thickness | Tensile Strength | Standard |
|---|---|---|---|
| Q195 Wire Rod | Ø5.5–Ø14mm | 380–490 MPa | GB/T 701 |
| PC Wire 1570 | Ø4–Ø9mm | 1570 MPa | GB/T 5223 |
| Galvanized Wire | Ø0.5–Ø5mm | 350–550 MPa | GB/T 343 |
| Spring Wire | Ø0.5–Ø16mm | 1000–2000 MPa | GB/T 4357 |
Applications
High-Bond Reinforcement Bar
Deformed Steel Bar
Precision-rolled deformed steel bars with superior surface rib patterns for maximum concrete bond strength. Our deformed bars are manufactured under strict quality control to meet international construction standards, offering excellent weldability, bendability, and consistent yield strength. Ideal for seismic-resistant structures, heavy-load foundations, and large-scale civil engineering projects requiring the highest reinforcement performance.
| Grade | Size / Thickness | Tensile Strength | Standard |
|---|---|---|---|
| HRB400E | Ø6–Ø50mm, L=6–12m | 540 MPa | GB/T 1499.2 |
| HRB500E | Ø8–Ø40mm, L=6–12m | 630 MPa | GB/T 1499.2 |
| BS4449 B500C | Ø8–Ø40mm, L=6–12m | 575 MPa | BS 4449:2005 |
| ISO 6935-2 B500B | Ø6–Ø50mm, L=6–12m | 540 MPa | ISO 6935-2 |
Applications
Stainless Steel Heat Transfer Solutions
stainless steel heat exchange coil
Precision-fabricated stainless steel heat exchange coils engineered for maximum thermal efficiency in industrial heating, cooling, and heat recovery systems. Manufactured from seamless SS304, SS316L, and SS321 tubing with tight-radius bending, TIG-welded connections, and pressure-tested to ensure zero leakage. Our coils are widely used in chemical reactors, food processing tanks, HVAC systems, pharmaceutical equipment, and marine heat exchangers where corrosion resistance and hygienic performance are critical.
| Grade | Size / Thickness | Tensile Strength | Standard |
|---|---|---|---|
| SS304 / 304L | OD 6–76mm, WT 0.5–5mm | ≥515 MPa | ASTM A269 / A213 |
| SS316 / 316L | OD 6–76mm, WT 0.5–5mm | ≥515 MPa | ASTM A269 / A213 |
| SS321 (Ti-stabilized) | OD 8–60mm, WT 1–4mm | ≥515 MPa | ASTM A213 TP321 |
| SS2205 Duplex | OD 10–50mm, WT 1–4mm | ≥620 MPa | ASTM A789 / A790 |
Applications
Structural Steel Framing Systems
Steel Frames
Pre-engineered and custom-fabricated steel frame structures for industrial buildings, warehouses, workshops, commercial complexes, and residential projects. Our steel frames are precision-cut, drilled, and welded to exact specifications, with hot-dip galvanizing and anti-corrosion coating options for long-term durability in any climate.
| Grade | Size / Thickness | Tensile Strength | Standard |
|---|---|---|---|
| Q235B H-Beam | 100×100 – 900×300mm | 370–500 MPa | GB/T 11263 |
| Q345B I-Beam | 100–630mm height | 470–630 MPa | GB/T 706 |
| S355JR Column | UC 152×152 – 356×406mm | 470–630 MPa | EN 10025 |
| A992 Wide Flange | W6×9 – W36×300 | 448–621 MPa | ASTM A992 |
Applications
Our Advantages
Why Global Buyers Choose Zhejiang Steel Factory
From factory floor to your project site — we deliver quality, speed, and value that keeps our clients coming back year after year.
Factory-Direct Pricing
No middlemen, no markups. Buy directly from the manufacturer and save 15–30% compared to trading companies. Transparent pricing with volume discounts.
Fast & Reliable Delivery
Sample orders ship in 7–14 days. Bulk orders produced in 15–30 days. We partner with top freight forwarders for on-time delivery to any port worldwide.
ISO 9001 Quality Certified
Every batch undergoes rigorous testing — tensile strength, yield strength, chemical composition, and dimensional checks. Full mill test certificates provided.
Global Export Experience
Over 25 years exporting to 50+ countries. We handle all customs documentation, export licenses, and compliance requirements for smooth international trade.
24/7 Sales Support
Dedicated account managers available around the clock. We respond to all inquiries within 24 hours and provide technical consultation at no extra cost.
Flexible Payment Terms
We accept T/T, L/C, D/P, and D/A. Flexible payment schedules available for long-term partners. Sample cost is fully deductible from your first bulk order.
Third-Party Inspection
We welcome SGS, BV, TUV, and other third-party inspections before shipment. Full transparency at every stage of production and quality control.
Sustainable Production
Our facilities use energy-efficient electric arc furnaces and recycled scrap steel, reducing carbon footprint while maintaining the highest product quality.
Ready to experience the Zhejiang difference?
Join 500+ satisfied clients across 50+ countries who trust Zhejiang Steel Factory for their steel supply.
Internationally Certified & Compliant
Every product we manufacture meets rigorous international standards. Our certifications are your guarantee of quality, safety, and reliability.
ISO 9001:2015
Quality Management System certified by Bureau Veritas. Every production batch undergoes systematic quality control from raw material to finished product.
CE Marking
European Conformity certification confirming our steel products meet EU safety, health, and environmental protection requirements for the European market.
ASTM Standards
American Society for Testing and Materials compliance. Our rebar, sheet, and tube products meet ASTM A615, A36, and A500 specifications.
SGS Inspected
Third-party inspection by SGS, the world's leading testing and certification company. Independent verification of quality before every shipment.
GB/T Standards
Full compliance with Chinese National Standards (Guobiao). Our products meet GB/T 1499, GB/T 3274, and other relevant Chinese steel standards.
Bureau Veritas
BV certification for quality assurance and testing. Recognized globally by importers, banks, and insurance companies for trade finance and compliance.
Mill Test Certificate
Every shipment
Chemical Analysis
Full composition
Dimensional Check
Per batch
Tensile Test
Yield & UTS
We provide full mill test certificates, inspection reports, and compliance documentation with every order. Contact us for specific certification requirements.
Global Reach
Trusted by Builders Worldwide
We proudly export to 50+ countries across Asia, the Middle East, Africa, Europe, and the Americas.
Countries We Export To
Client Reviews
What Our Clients Say
Ahmed Al-Rashidi
Al-Rashidi Construction LLC · UAE
“We have been sourcing steel rebar from Zhejiang Steel Factory for 5 years. Consistent quality, competitive pricing, and always on-time delivery. Highly recommended for large infrastructure projects.”
David Okonkwo
Lagos Build Group · Nigeria
“Excellent supplier! The steel sheets and tubes we ordered met all our specifications perfectly. The mill test certificates were comprehensive and the shipment arrived ahead of schedule.”
Maria Santos
Santos Engineering Corp · Philippines
“Zhejiang Steel Factory is our go-to supplier for stainless steel. Their 304 and 316 grades are top quality. The sales team is very responsive and helped us with all the technical documentation.”
Rajesh Patel
Patel Infrastructure Pvt Ltd · India
“We placed our first sample order and were so impressed that we immediately placed a bulk order of 500 tons. The quality control is exceptional and pricing is very competitive.”
Nguyen Van Minh
Minh Phat Steel Trading · Vietnam
“Outstanding service from inquiry to delivery. The steel wire and coil products are exactly what we needed for our manufacturing operations. Will definitely order again.”
James Kimani
Kimani Builders Ltd · Kenya
“Reliable, professional, and great value. Zhejiang Steel Factory has been supplying our construction projects for 3 years. Their rebar quality is consistently excellent and delivery is always on time.”
Who We Are
25 Years of Steel Manufacturing Excellence
ZJ Steel Factory is a leading manufacturer and exporter of premium steel construction products based in Zhejiang, China. Founded in 1999, we have grown into one of the region's most trusted steel suppliers, serving clients across 50+ countries in Asia, Europe, the Middle East, Africa, and the Americas.
Our state-of-the-art production facilities cover over 200,000 m² with an annual output exceeding 2,000,000 tons. We hold ISO 9001, CE, and ASTM certifications, ensuring every product meets the highest international quality standards.
See Our Factory in Action
Take a virtual walkthrough of our 200,000 m² production facility — from raw material intake to finished steel products ready for global shipment.
Raw Material Inspection
Every batch of scrap steel and iron ore is tested before entering production.
Electric Arc Furnace
State-of-the-art EAF smelting at 1,600°C for consistent steel quality.
Rolling & Forming
Precision hot-rolling lines producing rebar, coil, sheet, tube and wire.
Quality Lab Testing
In-house lab performs tensile, yield, chemical and dimensional tests on every batch.
Packaging & Marking
Products are bundled, tagged with heat numbers, and prepared for export.
Port Loading
Direct container loading at Ningbo port — FOB shipments worldwide.
Our Work
Featured Projects
Infrastructure · High-rise · Bridge · Industrial · Commercial
2023Infrastructure
Hangzhou Metro Line 5
Hangzhou, China
High-Rise
Dubai High-Rise Tower
Dubai, UAE
Bridge
Jakarta Bridge Project
Jakarta, Indonesia
Industrial
Lagos Industrial Park
Lagos, Nigeria
Sports
Riyadh Sports Complex
Riyadh, Saudi Arabia
Infrastructure
Ho Chi Minh City Expressway
Ho Chi Minh City, Vietnam
Commercial
Nairobi Commercial Center
Nairobi, Kenya
Port
Manila Port Expansion
Manila, Philippines
Instant FOB Price Calculator
Get an estimated factory price in seconds. Select your product, grade, and quantity to see a real-time FOB price range from our Ningbo port.
Prices updated weekly based on LME steel index. All prices in USD.
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Frequently Asked Questions
Everything you need to know before placing your first order with Zhejiang Steel Factory.
Our MOQ is 1 ton for sample orders and 20 tons for bulk orders. For mixed product orders, the total combined quantity must reach 20 tons. We welcome first-time buyers to start with a sample order to verify quality before committing to bulk.
Still have questions?
Our sales team is available 24/7 to answer any questions about products, pricing, shipping, or certifications.
Try Before You Place a Bulk Order
Not sure about the quality? We welcome sample orders so you can inspect our steel products firsthand before committing to a large purchase.
- Minimum sample quantity: 1 ton per product
- Fast sample delivery: 7–14 business days
- Full material test reports included
- Sample cost deductible from bulk order
Factory-Direct Pricing for Large Volume Orders
We specialize in large-scale bulk supply for construction projects, trading companies, and distributors worldwide.
Global Shipping
FOB, CIF, CFR available
Flexible Payment
T/T, L/C, D/P accepted
Lead Time
15–30 days production
Quality Guarantee
Mill test certificate
Get a Quote
Get In Touch
Fill in the form and our sales team will respond within 24 hours with a competitive quotation tailored to your project requirements.
Contact Person
Mr. Zhang Kaiqi
Phone (Zhang)
+86 137 5557 5566 / +86 151 5869 5566
Company
Zhenjiang Steel Structure Materials Co.,Ltd.
Business Address
Block 36, Xiangjiang Huacheng, No.288, Dongwu Road, Zhenjiang 212000
Response Time
Within 24 Hours
Minimum Order
1 Ton (Sample) / 20 Tons (Bulk)
Shipping
Worldwide — FOB, CIF, CFR