熱間圧延ブラックスキンステンレス鋼線材
Hot Rolled Black Skin Stainless Steel Wire Rods, also named Pickled Wire / Acid Washed Wire / No.1 Finish Wire / Black Wire, are processed by route: hot rolled wire rod → annealing → pickling & passivation to remove oxide scale → surface finishing, without cold drawing & brightening procedures. The surface presents dark grey / grey-black matte appearance without metallic luster, uniform rust-free surface with no obvious oxide scale. With passivation film for stable rust resistance, dimensional tolerance ±0.1mm, high hardness and great tensile strength, the raw material cost is lower than bright annealed wire. Widely used as raw material for industrial welding wire, steel structure fasteners, heavy mechanical parts, pipe connectors, wear-resistant components, construction hardware and heavy industrial equipment accessories for global manufacturing & infrastructure sectors.
In-stock diameter range: 1.0mm–60.0mm; customized heavy thick wire: 60.0mm–120.0mm
Minimum Order Quantity: Flexible
Delivery Time: 7–15 Working Days
Packing: Standard Seaworthy Export Packing
Supply Ability: Large ready spot inventory supported by our self-owned Wuzhou Yongda Special Steel Plant
✉ Email: sales@jiaboyang.com
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Description
PRODUCT DESCRIPTION
| Parameter Item | Specifications (Strict from your Excel sheet) |
|---|---|
| Material Grade | Standard grades: 201, 202, 304, 304L, 316, 316L |
| Size Specification | In-stock diameter: 1.0mm–60.0mm; Custom large thick wire: 60.0mm–120.0mm; Standard coil weight: 1–3 tons |
| Surface Feature | Dark grey / grey-black matte surface, no metallic luster, uniform rust-free surface, no obvious residual oxide scale |
| Dimensional Tolerance | Controlled tolerance: ±0.1mm, high hardness & excellent tensile strength |
| Executive Standard | ASTM A240, EN 10088, JIS G4303 international stainless steel standards |
| Performance Characteristic | Stable anti-rust performance from dense pickled passivation film, cost advantage vs bright wire, basic cold forming capacity |
Product Performance
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Defined production process without brightening treatment
Manufactured by fixed procedure: hot rolled wire rod → annealing → pickling & passivation for oxide removal → surface finishing, no cold drawing and bright annealing step, matching cost-oriented bulk processing demand.
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Natural matte pickled passivation surface
Dense anti-corrosion passivation layer formed on surface after pickling treatment, stable rust-proof performance, uniform appearance without rust spots and residual heavy oxide skin.
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Economical dimension control for general industrial processing
Diameter tolerance controlled at ±0.1mm, high hardness and tensile property, qualified for conventional cold drawing, cold heading and bending procedures for non-appearance-critical products.
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Cost-effective alternative for non-high-surface requirement scenarios
Lower raw material cost compared with pickled bright wire rods, ideal base material for customers arranging secondary surface treatment afterward.
Product Applications
Features & Highlights
- Cost-competitive bulk raw material with stable batch consistency for mass purchasing
- Controlled ±0.1mm dimensional tolerance & good roundness uniformity
- Complete material certification package supporting international export customs clearance
- Full range of common grades, regular medium size & customized extra-large thick wire options
- Flexible for secondary pickling, polishing and other surface rework treatment per customer deman
Custom specifications are available based on your requirements.
Product Advantages
Stable Material Quality
Strict quality control ensures consistent performance and reliability.
Strong Supply Capacity
Sufficient inventory guarantees fast delivery and flexible orders.
カスタマイズ可能
Material grades, specifications, and sizes can be customized to your requirements.
24時間365日体制のプロフェッショナルサービス
Our team is always ready to solve quality or technical issues quickly.
Why Choose Us
Why Choose Our Stainless Steel Materials
Integrated manufacturing and trading enterprise
Own large steel mill support
7 nickel-based production lines
20,000 tons raw material inventory
One-stop stainless steel solutions
