No.4 Brushed Finish ERW Stainless Steel Pipe

Product Introduction

No.4 Brushed ERW Stainless Steel Pipe is a premium decorative welded tubing processed with professional uniform linear brushing treatment on the basis of high-quality ERW welded steel pipe. Different from the matte flat 2B industrial finish, the No.4 brushed surface features delicate, consistent horizontal grain lines, presenting a classic metallic satin texture with strong three-dimensional sense and high-grade visual effect. Adopting high-frequency electric resistance welding technology, the pipe body has no welding protrusions, with round and smooth overall shape, stable structure and excellent finished appearance. Mainly available in 304 and 316L grades, this product is tailor-made for high-standard decoration, hardware engineering and visible equipment piping projects, widely favored by global architectural contractors and finished product manufacturers.

Unique Advantages of No.4 Brushed Surface

1. Classic Uniform Brushed Texture

The whole pipe surface adopts mechanical uniform wire drawing process, with neat and continuous linear grains, no chaotic lines, no color difference and no missing brushing. The satin silver finish is neither too bright like mirror polish nor dull like 2B finish, delivering a low-key luxury metallic texture, perfectly matching modern architectural and hardware design styles.

2. Strong Scratch & Wear Resistance

The professional brushed treatment forms a protective texture layer on the steel surface, which can effectively cover minor daily scratches and reduce visible wear marks during transportation, installation and use. Compared with ordinary polished pipes, No.4 brushed tubes are more durable in daily use and less prone to obvious surface damage, greatly improving the finished product qualification rate.

3. Anti-Fingerprint & Easy Maintenance

The linear grain structure effectively avoids obvious fingerprint residue and dust accumulation on the pipe surface. It is easy to clean and maintain in daily use, no need for frequent polishing. Optional anti-fingerprint coating treatment is available to further enhance stain resistance, suitable for long-term exposed use in public and high-end commercial scenarios.

4. Excellent Secondary Processing Performance

The ERW welded pipe body has uniform wall thickness and stable mechanical properties. The No.4 brushed surface will not crack or fall off during cutting, bending, punching, welding and bending processing. It supports customized shaping and deep processing, and can maintain consistent texture integrity after processing, meeting the high appearance requirements of downstream finished products.

Production & Quality Control Process

This series of pipes adopts standardized integrated production process: premium stainless steel coil slitting → precision roll forming → high-frequency ERW seamless welding → weld seam internal and external leveling → stress relief annealing → fixed-length cutting → fine No.4 uniform brushing → surface defect screening → finished product packaging. All welding seams are completely fused with the pipe body without trace gaps, ensuring no weld marks on the final brushed surface, realizing unity of structure performance and decorative effect.

Complete Technical Specifications

Material Grade: AISI 304 (1.4301), 316L (1.4404)

Surface Treatment: Standard No.4 Linear Brushed Finish, Anti-fingerprint treatment optional

Manufacturing Process: ERW high-frequency longitudinal welding + full surface fine wire drawing

Executive Standards: ASTM A312, ASTM A249, EN 10217, JIS G3459

Size Range: OD 10mm–630mm, WT 0.9mm–15mm, SCH10/SCH40/SCH80 optional

Standard Length: 6m fixed length, customized cutting and special length available

Tolerance Standard: Strict outer diameter, wall thickness and straightness tolerance for decorative high-precision requirements

Testing Items: Eddy current testing, hydraulic pressure test, surface full inspection, dimensional tolerance calibration

Core Application Scenarios

No.4 Brushed ERW stainless steel pipes focus on appearance-based engineering and decorative fields, with irreplaceable advantages over ordinary industrial pipes:

•Architectural Decoration Engineering: Shopping mall railings, stair handrails, hotel curtain wall frames, indoor and outdoor decorative piping

• Hardware Finished Products: Sanitary ware brackets, furniture stainless steel frames, equipment protective covers, automotive decorative tubes

• Commercial Facility Construction: Airport, subway, office building public area decoration and structural support pipes

• Mechanical & Sanitary Equipment: Food machinery exterior frames, medical equipment decorative parts, clean equipment piping appearance parts

• Outdoor Engineering Projects: Landscape facilities, outdoor guardrails, coastal decoration projects (316L grade for enhanced corrosion resistance)

Our Export Advantages

We specialize in high-precision No.4 brushed ERW decorative stainless steel pipes, focusing on solving the pain points of uneven wire drawing, partial color difference and residual weld marks in the market. All products featureuniform grain, consistent gloss and flawless surface. We support personalized customization of drawing fineness, pipe size and anti-fingerprint treatment.

We provide full set of export documents including COA test reports and factory certification. Exclusive anti-scratch packaging for brushed surfaces is adopted to avoid grain damage during long-distance ocean transportation. Flexible MOQ, fast production cycle and factory direct sales price support long-term bulk cooperation and customized order production for global customers.

Contact us to get free samples and latest bulk discount price!

Hot Tags: no.4 brushed finish erw stainless steel pipe, China no.4 brushed finish erw stainless steel pipe manufacturers, suppliers, factory, Coiled Stainless Steel Tube, stainless tri clamp, stainless tube and fittings, stainless union coupling, stainless weldolet, stainless wye fitting