Cold Drawn Steel Products
Round, square, flat, hexagonal and custom special section steel — precision cold drawn bars from a 150,000-ton factory-direct manufacturer.
Cold drawn steel is manufactured by pulling hot rolled bar through precision dies at room temperature, producing bright bars with tighter dimensional tolerance, smoother surface finish and better straightness than hot rolled equivalents. Suzhou Zhenfu Cold-Drawn Steel Co., Ltd. is a factory-direct manufacturer in the Yangtze River Delta with an annual production capacity of 150,000 tons, a plant area of 20,000 square meters and over 18 years of cold drawn steel manufacturing experience.
As a real manufacturing factory — not a trading company — we control every stage from raw material to shipment: steel sourcing, cold drawing, annealing, straightening, cutting, inspection, rust-proof packaging and export documentation. Every batch is traceable to the original steel mill heat number, and bilingual mill test certificates (MTC) are available on request.
Our Cold Drawn Steel Product Lines
Cold Drawn Round Steel
Diameters from φ5 mm to φ100 mm with bright finish and excellent straightness. Ideal for shafts, pins, axles, piston rods, hydraulic components, fasteners and CNC machined parts.
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Cold Drawn Square Steel
From 4×4 mm to 120×120 mm with sharp, well-defined corners and consistent cross-section. Widely used for machine structures, frames, guide components and precision fabrication.
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Cold Drawn Flat Steel
From 20×3 mm to 200×40 mm in carbon and low-alloy grades. Used for guide rails, brackets, structural parts, tooling and elevator guide rail applications.
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Cold Drawn Hexagonal Steel
From S5 mm to S100 mm, including free-cutting grades such as 12L14 and Y40Mn for high-speed automatic machining. Preferred raw material for bolts, nuts, fasteners and machine tool components.
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Cold Drawn Special Section Steel
Custom non-standard profiles manufactured to customer drawings or samples, with in-house die development and multi-pass drawing. For shipbuilding, defense, precision equipment and any application that needs a special cross-section.
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Why Buy Cold Drawn Steel from Suzhou Zhenfu
Source-controlled raw material from leading steel mills. All feedstock is purchased directly from major domestic steel groups — Baowu, Shagang, Ansteel, HBIS, NISCO, Valin Xiangtan and CITIC Pacific Xingcheng — with heat numbers and original mill certificates. No small-mill billets, no recycled or off-grade material.
Complete in-house manufacturing. Our plant is divided into six functional areas: raw material storage, automated cold drawing production, constant-temperature annealing, precision straightening and cutting, an independent quality laboratory, and temperature-controlled finished goods storage. All processes are performed in-house — no outsourcing, no OEM labeling.
Four-stage quality control and international certification. We operate an ISO quality management system and hold CE certification. Quality control covers incoming material inspection, hourly production patrol, semi-finished sampling and 100% final inspection, with a laboratory equipped with spectrometers, hardness testers, micrometers, straightness and surface roughness instruments. Third-party inspection by SGS or BV is welcomed.
Export-ready packaging and reliable delivery. Five-layer rust-proof export packaging — rust-preventive oil, kraft paper, stretch film, steel strapping and fumigated pallets — protects products through 1–3 months of ocean transport. Stock sizes ship within 3–7 days; container loads (FCL/LCL), trial orders and annual framework contracts are supported with FOB, CIF, CFR, DDP and DDU terms.
Factory Facts
150,000 tannual capacity
20,000 m²plant area
18+ yearsmanufacturing experience
3–7 daysstock size delivery
Standards: GB/T 905, EN 10277, ASTM A108 and comparable international grades. Certifications: ISO quality management system, CE certification. Documents: bilingual MTC, chemical and mechanical test reports, inspection certificates. Delivery: FCL / LCL / trial orders / framework contracts.
Markets We Serve
Japan & Korea: grades per JIS G4053 / G3101 (S45C, SCM440, SUM series, 12L14), tight hardness consistency (±5 HB), Japanese/Korean import documentation available.
Europe & America: EN 10277 and ASTM A108 supply, grades such as S235JR, S355J2, 42CrMo4, A36 and A572 Gr 50, CE documentation and English MTC for EU/US customs.
Middle East: high-yield and alloy grades suited to high-temperature service (SASO-aligned material), rust-resistant packaging for hot and humid sea routes.
Southeast Asia: high-volume carbon steel grades (20#, 45#, Q235, Q355, SS400, A36) at stable prices, small trial orders and LCL consolidation supported.
Cold Drawn Steel FAQ
What steel grades can you cold draw?
We regularly produce carbon steel (20#, 45#, Q235, Q355), alloy steel (40Cr, 42CrMo, 20CrMnTi, 65Mn) and free-cutting steel (12L14, Y40Mn), with comparable grades to JIS, EN and ASTM specifications available on request.
Can you supply mill test certificates?
Yes. Every batch is traceable to the original steel mill heat number, and bilingual (Chinese/English) MTCs with chemical composition, tensile, yield, elongation, hardness and impact data are provided. Third-party inspection by SGS or BV can be arranged.
What is your MOQ?
We accept sample orders, small trial orders and LCL consolidation, as well as large annual framework contracts. Stock sizes can ship within 3–7 days.
Do you support custom sizes and special sections?
Yes. We develop in-house dies and run multi-pass drawing for non-standard profiles, special tolerances, custom lengths and special materials — send us a drawing or sample for evaluation.
How do you pack for sea shipment?
Five-layer export packaging: rust-preventive oil, thick kraft paper, waterproof stretch film, steel strapping and fumigated wooden pallets, designed for 1–3 months of ocean transport in hot, humid or salt-spray conditions.
Send us your size, grade, quantity and destination — our engineers will confirm material selection, tolerances and delivery time within 24 hours.
