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Product Overview
Stainless Steel Wire Rods
A stainless steel wire rod in various grades and finishes, for further processing into wire, fasteners, springs, mesh, and industrial products.
Product Introduction
1. Main Product Types
- Hot rolled stainless steel wire rods, cold finished wire rods, annealed wire rods, pickled wire rods, bright wire rods
- Shapes: Round wire rod (main type), special profiles (square, hexagonal upon request)
- Delivery form: Coiled (big coil / small coil), straight bars (optional)
- Surface condition: Black oxide, pickled, bright annealed, polished, descaled
- Manufacturing process: Melting (EAF + AOD/VOD), continuous casting, hot rolling, cold drawing, heat treatment (annealing, solution annealing), pickling & surface finishing
2. Executive Standards
General & Dimensional Standards
- ASTM A555/A555M: General Requirements for Stainless Steel Wire and Wire Rods
- ASTM A493: Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
- ASTM A313/A313M: Stainless Steel Spring Wire
- EN 10088-3: Stainless steels – Technical delivery conditions for semi-finished products, bars, rods, and sections
- EN 10263-5: Steel rod, bars and wire for cold heading and cold extrusion – Stainless steels
- ISO 4954-2: Steels for cold heading and cold extrusion – Part 2: Stainless steels
- JIS G4308: Stainless steel wire rods
- GB/T 4356: Stainless steel wire rods
- ISO 9001: Quality Management System
- EN 10204: Metallic products - Types of inspection documents (3.1 / 3.2 MTC)
Test & Inspection Standards
- ASTM E10: Hardness testing
- ASTM E8: Tensile testing
- ASTM E112: Grain size measurement
- ASTM E165: Ultrasonic & penetrant testing
- ISO 643: Micrographic grain size determination
- ISO 377: Sampling for mechanical testing
3. Main Materials & Grades
Austenitic Stainless Steel
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304 / UNS S30400, 304L / UNS S30403
- General-purpose, excellent formability, indoor & general corrosive environments, fasteners, wire mesh
-
316 / UNS S31600, 316L / UNS S31603
- Molybdenum-alloyed, superior chloride corrosion resistance, coastal, marine & chemical environments
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321 / UNS S32100
- Titanium stabilized, high temperature resistance, anti-sensitization, exhaust & heat system parts
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310 / UNS S31008
- High temperature oxidation resistance, furnace & heat treatment equipment
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309L / UNS S30903
- Welding consumables, high temperature overlay & cladding
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Duplex grades: 2205 (UNS S32205), 2507 (UNS S32750)
- High strength & chloride corrosion resistance, offshore, seawater & sour service
Ferritic / Martensitic Stainless Steel
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430 / UNS S43000 (Ferritic)
- Magnetic, general decorative & low-corrosion applications
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410 / UNS S41000, 420 / UNS S42000 (Martensitic)
- Hardenable grades, shafts, cutlery, tools, wear-resistant parts
Material Features
- Austenitic grades: Non-magnetic (annealed), good ductility, corrosion resistance, easy cold forming
- Martensitic grades: Heat-treatable for high hardness & wear resistance
- Duplex grades: Dual phase ferrite/austenite, high yield strength & excellent pitting corrosion resistance
- Can be further processed into fine wire, fasteners, springs, welding wire, mesh, cables
4. General Specification Parameters Table
| Item | Specification |
|---|---|
| Product Name | Stainless Steel Wire Rods, Stainless Steel Hot Rolled Wire Rods |
| Shape | Round (standard), special profiles (square, hexagonal on request) |
| Nominal Diameter | Common: 5.5mm, 6.5mm, 8mm, 10mm, 12mm, 14mm, 16mm, 20mm Range: 5.0mm ~ 30mm (custom sizes available) |
| Coil Weight | Typically 500kg ~ 2500kg per coil (custom coil weight available) |
| Material Grades | 304, 304L, 316, 316L, 321, 310, 309L, 430, 410, 420, 2205, 2507 |
| Delivery Condition | Hot rolled, pickled, solution annealed, bright annealed, cold finished |
| Surface Finish | Black oxide, pickled finish, bright finish, descaled finish |
| Typical Density | ~7.93 g/cm³ (austenitic grades) |
| Mechanical Properties | Variable by grade & heat treatment Annealed 304: Tensile ≤750 MPa, good ductility for cold heading |
| Operating Temperature | -200°C ~ +870°C (varies by grade) |
| Core Applications | Fasteners, bolts, nuts, wire mesh, springs, welding wire, cable, automotive parts, medical wire, kitchenware, marine hardware |
| Inspection Items | Chemical composition analysis, PMI verification, tensile test, hardness test, grain size inspection, surface defect inspection, dimensional tolerance |