High Carbon Spring Wire

High-carbon spring wire for coil springs, suspension and mechanical springs, with uniform tensile strength.

High Carbon Spring Wire is manufactured at our ISO 9001:2015 certified plant in Tianjin, China (65,000 m², 500,000 t annual capacity) and exported directly to Russia, Kazakhstan, Uzbekistan, Kyrgyzstan, Tajikistan, Turkmenistan and Belarus since 2005. Every batch ships with a Mill Test Certificate (MTC) per EN 10204 3.1 with heat number traceability, the Certificate of Origin (form ST-1 for the EAEU) and full export documentation.

High Carbon Spring Wire from the Tianjin plant – MTC per EN 10204 3.1, delivery to Russia and Central Asia

What Is High Carbon Spring Wire?

High-carbon spring wire for coil springs, suspension and mechanical springs, with uniform tensile strength.

High Carbon Spring Wire is supplied to EN 10270-1, GB/T 4357 in grades 65Mn, 60Si2MnA, C72, covering 0.8-13 mm, with Bright, oil-tempered or patented finish. The material is produced under a strict quality management system, tested to the requirements of the applicable standard and documented with the full certificate set required for import into Russia, Kazakhstan, Uzbekistan, Kyrgyzstan, Tajikistan, Turkmenistan and Belarus. As a factory-direct exporter with an annual capacity of 500,000 tonnes, we supply this product line to distributors, project contractors and industrial end-users across the EAEU, with scheduled deliveries and fixed-price contracts for regular buyers.

Key Features of High Carbon Spring Wire

• Supplied to EN 10270-1, GB/T 4357 with a full Mill Test Certificate per EN 10204 3.1 including chemical composition and mechanical properties
• Available grades: 65Mn, 60Si2MnA, C72
• Size range: 0.8-13 mm
• Surface and finish: Bright, oil-tempered or patented
• MOQ: 20 t; trial containers and consolidated shipments available for first orders
• Production time 15-25 days after specification confirmation; delivery to Russia and Central Asia 25-45 days
• Third-party inspection by SGS, Bureau Veritas or TUV Rheinland available before shipment
• GOST-equivalent documentation and EAC certification support prepared for EAEU customs clearance

High Carbon Spring Wire – Specifications

Grades, Standards and Finishes

Wire is supplied to ASTM A641 (galvanized), GB/T 343 (low-carbon), EN 10270-1 (spring wire), GB/T 4357 and GOST 3282 (general-purpose wire for Russia). For the Russian market GOST 3282 covers low-carbon wire in black, annealed and galvanized finish, and we prepare certificates cross-referencing the international grade. Diameters from 0.8 to 13 mm; finishes: bright, black annealed (soft), electro- or hot-dip galvanized, PVC coated, and oil-tempered for springs. Tensile strength from soft annealed (~350 MPa) for tying to high-carbon spring wire up to 1,900 MPa. Coils of 10-500 kg, spools for automated equipment, and cut lengths for specific applications complete the program.

Manufacturing Process

Steel wire is produced by cold drawing hot-rolled wire rod through a series of dies on continuous drawing machines, which reduces the diameter and increases tensile strength. Low-carbon wire (Q195/Q235) is drawn for binding, tying, fencing and mesh; medium- and high-carbon wire (65Mn, 60Si2MnA, C72) is drawn, patented and oil-tempered for springs. Galvanized wire is produced by hot-dip or electro-galvanizing the drawn wire, with zinc coatings matched to the service environment; PVC-coated wire adds a UV-stable polymer layer for fencing and trellis. The plant processes diameters from 0.8 to 13 mm in coils of 10-500 kg, with spool and cut-length options. Each coil is tested for tensile strength, elongation, coating weight and surface quality, with the MTC issued per ASTM A641, GB/T 343 or EN 10270-1.

Applications

• Binding and tying in construction
• Fencing, mesh and gabions
• Agricultural trellis and vineyard
• Springs and fasteners
• Cable and wire rope manufacturing

Applications in Construction, Agriculture and Industry

Wire is a fundamental building material. Construction sites across Russia and Central Asia consume binding wire for rebar tying, concrete formwork and baling; the wire is supplied soft annealed for easy handling or galvanized for corrosion resistance. Fencing manufacturers convert galvanized and PVC-coated wire into chain-link, welded mesh and barbed wire for industrial perimeters and agricultural holdings. Vineyards and orchards in Uzbekistan and the Caucasus use PVC-coated wire for trellis systems. Spring manufacturers draw high-carbon wire for vehicle suspension, machinery springs and fasteners. The nail industry consumes wire in controlled hardness for common, box and roofing nails. With the GOST 3282 grade mapping, Russian manufacturers can source wire directly for domestic standards.

Quality Control and Testing

Every production stage at the Sino East Steel plant is controlled under an ISO 9001:2015 quality management system. Depending on the product, each batch is tested for chemical composition and mechanical properties (yield strength, tensile strength, elongation), dimensional accuracy, surface quality and, where applicable, hydrostatic pressure, weld seam integrity, zinc coating thickness and paint adhesion. All testing is performed in our laboratory and, when the project requires, witnessed by independent inspectors from SGS, Bureau Veritas or TUV Rheinland. Each shipment is accompanied by a Mill Test Certificate (MTC) per EN 10204 3.1 with heat numbers, so every tonne can be traced back to its production date, heat and chemical analysis. This documentation is prepared in a form accepted by customs authorities in Russia, Kazakhstan, Uzbekistan, Kyrgyzstan, Tajikistan, Turkmenistan and Belarus, and can be adapted to GOST-based reporting when the buyer’s quality department requires it.

Documents and Compliance for Russia and the EAEU

All goods are supplied with a complete export documentation set prepared for smooth customs clearance in the Russian Federation and the Eurasian Economic Union: Mill Test Certificate (MTC) per EN 10204 3.1 with heat numbers and chemical analysis, Certificate of Origin form ST-1 (which qualifies for duty-free import within the EAEU), commercial invoice, packing list and bill of lading or railway consignment note. Where the project is subject to the EAEU Technical Regulations, we support the EAC certification process and provide the technical passport, test reports and conformity documentation required by the importing party. For products supplied against Russian design standards we prepare documentation referencing the relevant GOST equivalents (for example GOST 3262 for galvanized pipe, GOST 8732 for seamless pipe, GOST 30245 for hollow sections), so your quality department and the customs broker receive everything on the day the vessel or train arrives.

Logistics to Russia and Central Asia

Sea freight from Tianjin and Xingang ports to St. Petersburg, Novorossiysk, Vladivostok and the Baltic ports takes 30-45 days, with container and break-bulk options for project volumes. For Central Asia we ship container rail trains via the Dostyk and Khorgos border crossings to Almaty, Astana, Tashkent, Samarkand, Bishkek, Osh, Dushanbe and Ashgabat in 25-40 days. We quote on FOB Tianjin/Xingang, CFR, CIF, or DAP terms to your warehouse, consolidate several product lines in one container to reduce the freight cost per tonne, and agree the shipment schedule with your project calendar. A Russian-speaking sales team follows your order from specification to customs clearance, prepares the transit documentation for rail corridors, and coordinates with your forwarding agent at the destination. For regular buyers we offer scheduled programs with fixed prices for the contract period, protecting your project budget from market volatility.

Packaging and Loading

Wire is packed in coils of 10-500 kg, wrapped in plastic or hessian with steel strapping, and labeled with the grade, diameter, finish, tensile strength and coil number. Coils are palletized and loaded into containers with dunnage; spools are packed in cartons on pallets. The documentation includes the MTC per EN 10204 3.1 with GOST 3282 cross-reference, ST-1 certificate, invoice and packing list, prepared for EAEU customs clearance.

The Wire Market in Russia and Central Asia

The wire market in the region serves construction, agriculture, fencing and manufacturing. Russian construction consumes large volumes of binding wire, and the fencing and mesh industries add galvanized and PVC-coated wire demand. Kazakhstan’s agricultural sector uses wire for fencing and trellis. Uzbekistan, with its extensive vineyards and orchards, is a major consumer of PVC-coated trellis wire. The spring and fastener industries in Russia and Belarus consume high-carbon wire. Because domestic wire production does not cover the full diameter and finish range, importers source from China. Sino East Steel supplies wire directly to distributors, fence manufacturers and agricultural suppliers across the EAEU.

How to Choose the Right Steel Wire

Select the grade and tensile strength by the application: soft annealed low-carbon for tying and binding, medium-carbon for fencing and mesh, high-carbon (65Mn, C72) for springs. Choose the finish by the environment: bright for indoor, galvanized for outdoor, PVC-coated for fencing and trellis where aesthetics and UV resistance matter. Confirm the diameter, coil weight and packaging with your processing equipment. For spring wire, specify the required tensile strength range and surface condition (bright, oil-tempered, patented). For Russian projects confirm the GOST 3282 reference and the certificate format.

Why Buy Steel Wire Direct from the Factory

Sino East Steel supplies wire from partner drawing mills under our own quality control, with certificates cross-referenced to GOST 3282. Factory-direct pricing and consolidated shipments of several diameters and finishes reduce the landed cost for distributors and manufacturers. Our technical team supports grade and tensile selection, and regular supply programs keep production lines running without inventory gaps.

How to Order

Ordering is straightforward: (1) send your specification – standard, grade, size range, quantity, destination city or port and required documents; (2) our engineers confirm the correct grade and size, check GOST equivalents if needed and issue a firm offer within 24 hours; (3) after confirmation we book production on the corresponding line (15-25 days for standard items); (4) we arrange independent inspection if required and load the container or vessel with a full packing list; (5) you receive the MTC, ST-1, invoice and shipping documents by email on the day of departure, and our team tracks the cargo until it reaches your warehouse. First orders can be combined with a trial container of several product lines, and long-term partners receive preferential pricing and fixed-price contracts.

Frequently Asked Questions

Related Products

• Galvanized Iron Wire
• Black Annealed Wire
• Binding Wire / Tie Wire
• PVC Coated Wire

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Factory-Direct Sourcing for the Russian and CIS Market

High Carbon Spring Wire is available for direct import into Russia and Central Asia under a transparent procurement process. Our export desk confirms the specification, grades and GOST equivalence within 24 hours, issues a firm offer on FOB, CFR, CIF or DAP terms, and prepares the complete export documentation set – MTC per EN 10204 3.1 with heat numbers, Certificate of Origin form ST-1 for duty-free EAEU import, commercial invoice, packing list and bill of lading or railway consignment note – so your customs broker clears the cargo without delays. Payment terms include T/T with 30% deposit, irrevocable letters of credit, and credit terms for established partners. For distributors and project buyers we consolidate several product lines in one container, provide cargo tracking through our logistics desk, and support the EAC certification process under the EAEU Technical Regulations where the project requires it. First orders can be arranged as trial shipments so your quality department can verify the material and the documentation before committing to volume supply, and regular buyers benefit from fixed-price contracts for the period of the agreement.