304 ERW Stainless Steel Pipe

Product Overview

304 ERW (Electric Resistance Welded) Stainless Steel Pipe is a cost-effective, high-performance welded tubular product made from premium AISI 304 austenitic stainless steel (UNS S30400, 1.4301). Adopting advanced high-frequency electric resistance welding technology, this pipe features uniform wall thickness, smooth inner and outer surfaces, and stable welding seam quality. Compared with seamless pipes, 304 ERW stainless steel pipes boast higher production efficiency, richer size specifications and more competitive prices, making them the most popular general-purpose stainless steel tubing for global industrial and commercial applications.

All our products strictly comply with international authoritative standards including ASTM A312, ASME SA312, ASTM A249 and ASTM A778, fully meeting global procurement and engineering construction requirements.

Superior Product Features

1. Excellent Corrosion Resistance: 304 stainless steel contains 18% chromium and 8% nickel, delivering outstanding rust and oxidation resistance. It performs stably in freshwater, atmospheric environments, most organic acids, alkaline solutions and mild chemical media, effectively avoiding corrosion and extending service life.

2. Reliable Mechanical Performance: The pipe features high structural strength with a minimum tensile strength of 515MPa and yield strength of 205MPa. It supports conventional bending, cutting, welding and deep processing, with strong pressure resistance and structural stability for long-term operational use.

3. Precision ERW Welding Process: High-frequency induction welding forms a fine metallurgical bond on the weld seam, realizing seamless integration of the pipe body. Equipped with internal leveling and solid solution annealing treatment, the pipe has smooth inner walls, low fluid resistance, no residual stress, and effectively prevents weld cracking and leakage.

4. High Cost Performance & Versatility: With stable quality and affordable price, it covers full-size specifications. It balances performance and cost perfectly, serving as the preferred alternative to seamless pipes for non-extreme high-pressure working conditions.

5. Clean & Durable: The polished surface is smooth and easy to clean, free of dirt accumulation and bacterial growth. It is non-toxic, environmentally friendly, and has good high-temperature resistance up to 650℃, suitable for long-term continuous use.

Detailed Specifications

Material Grade: AISI 304 / UNS S30400 / 1.4301

Execution Standards: ASTM A312, ASME SA312, ASTM A249, ASTM A778

Size Range: Outer diameter 1/8'' – 30''; Wall thickness SCH5 – SCHXXS

Pipe Ends: Plain end / Beveled end (customizable)

Surface Finish: 2B cold rolled, polished, pickled, matte finish

Processing Technology: High-frequency ERW longitudinal welding, internal leveling, solid solution annealing, non-destructive testing

Quality Inspection: 100% weld seam inspection, hydraulic pressure test, eddy current test, dimensional tolerance detection, factory quality report support

Wide Applications

304 ERW stainless steel pipes are widely used in multiple global industries due to their stable performance and strong practicability:

• Fluid Transportation: Water supply and drainage pipelines, purified water systems, industrial water circulation, sewage treatment projects

• Food & Pharmaceutical: Food processing pipelines, beverage transmission, pharmaceutical sanitary piping systems

• Chemical Industry: Transportation of mild acid and alkali media, chemical pipeline engineering

• Architectural & Decoration: Building structural pipes, handrail tubes, decorative stainless steel profiles

• HVAC & Mechanical Equipment: Air conditioning ventilation systems, boiler auxiliary pipes, mechanical support structures

• Petroleum & Light Industry: Low-pressure oil transmission, general industrial pipeline projects

Our Advantages & Service Support

As a professional stainless steel pipe exporter, we strictly control raw material selection and production processes to ensure consistent product quality. All 304 ERW pipes are produced in standardized workshops, with precise dimensional tolerance, uniform weld quality and stable surface finish. We supportcustomized size, surface treatment and pipe end processing to meet diverse customer needs.

We provide complete export documents including COA quality certificate, factory inspection report, bill of lading and other customs clearance materials. With mature packaging (waterproof paper + plastic cap + steel strip fixing) and global logistics solutions, we ensure safe and intact delivery of goods. Small trial orders and bulk wholesale are both acceptable, with flexible MOQ and competitive factory direct prices, supporting long-term OEM & ODM cooperation.

Contact us for free samples and latest wholesale price!

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