热轧黑皮不锈钢线材

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

最低订购量：灵活
交货时间：7–15个工作日
包装：标准适于海运的出口包装
供货能力：拥有大量现货库存，并由我们自有的梧州永达特钢厂提供支持
✉ 电子邮件： sales@jiaboyang.com

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产品描述

参数项目	规格（严格参照您的Excel表格）
材料等级	Standard grades: 201, 202, 304, 304L, 316, 316L
尺寸规格	In-stock diameter: 1.0mm–60.0mm; Custom large thick wire: 60.0mm–120.0mm; Standard coil weight: 1–3 tons
表面特征	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
行政标准	ASTM A240、EN 10088、JIS G4303 国际不锈钢标准
性能特征	Stable anti-rust performance from dense pickled passivation film, cost advantage vs bright wire, basic cold forming capacity

产品性能

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.
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.
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.
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.

产品应用

Industrial welding wire, steel structure fasteners, heavy mechanical accessories, pipe connecting parts, wear-resistant components, construction hardware, heavy industrial equipment fittings, widely adopted in global general manufacturing and infrastructure construction industries.

功能与亮点

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