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High Quality ERW Steel Pipe,ERW Seamless Carbon Steel Pipe For Waterworks
pipe
Asia Metal supplies premium Electric Resistance Welded (ERW) carbon steel pipes designed for municipal waterworks, irrigation systems, industrial fluid pipelines, and structural applications. Our ERW pipes offer exceptional dimensional accuracy, uniform wall thickness, and high-pressure resistance — manufactured under strict quality control to ensure leak-proof performance and long-term durability. While not seamless, our ERW pipes undergo advanced weld seam heat treatment and non-destructive testing for reliability comparable to seamless alternatives. We support full customization in diameter, wall thickness, coating, threading, and length to match your project specifications.
| Parameter | Standard Range | Customizable Options |
|---|---|---|
| Manufacturing Standard | ASTM A53 Gr. B, API 5L Gr. B, GB/T 3091, EN 10217-1 | Also compliant with JIS G3444, ISO 3183, DIN 2448 |
| Outer Diameter (OD) | 1/2" to 24" (21.3mm – 610mm) | Yes — Tolerance ±0.5% or tighter per request |
| Wall Thickness | SCH 10 to SCH 160, STD, XS, XXS | Yes — Custom mm-based thickness ±0.1mm |
| Steel Grade | Q195, Q235, Q345, ASTM A53B, API 5L B | Yes — Higher grades: X42, X52, X60 available |
| Coating Options | Bare, Black Varnish, Epoxy, FBE, 3LPE, Galvanized (Hot-Dip) | Yes — Internal cement mortar lining, color-coded bands |
| Length | 5m – 12m (Random or Fixed) | Yes — Cut-to-length ±10mm; max 18m single piece |
| End Preparation | Plain Ends, Beveled, Threaded & Coupled, Grooved | Yes — Flanged, socket weld, or special bevel angles |
| Delivery Time | 7–14 Days (Standard Sizes & Coatings) | Custom orders: 10–25 days; Rush 5-day for bare/black pipes |
| Certifications | ISO 9001, API 5L Monogram, SGS, BV, MTC (EN 10204 3.1), CE | Additional: WRAS (Water Regulation), NSF/61, PED, RoHS |
| Property | ASTM A53 Grade B | API 5L Grade B | Test Standard |
|---|---|---|---|
| Tensile Strength | ≥415 MPa | ≥415 MPa | ASTM A370 |
| Yield Strength | ≥240 MPa | ≥245 MPa | ASTM A370 |
| Elongation (Longitudinal) | ≥20% | ≥21% | ASTM A370 |
| Weld Seam Testing | 100% Ultrasonic or Eddy Current | 100% Ultrasonic + Hydrostatic | API 5L / ASTM E213 |
| Hydrostatic Test Pressure | ≥2500 psi (varies by schedule) | As per API 5L formula | ASTM A530 |
| Flattening Test | Pass (No crack at 2/3 flattening) | Pass (Per API 5L requirements) | ASTM A450 |
A: ERW pipes are cost-effective and offer excellent dimensional consistency, making them ideal for water transport under moderate pressure. Seamless pipes have no weld seam and are preferred for ultra-high pressure or critical corrosion environments. For most municipal and industrial water systems, ERW is the economical and reliable choice.
A: Yes. When coated with NSF/61 or WRAS-approved epoxy, cement mortar, or galvanized finish, our pipes meet international standards for drinking water safety. We provide material certification and leachate test reports upon request.
A: Absolutely. We offer factory-applied 3LPE (3-layer polyethylene), FBE (fusion bonded epoxy), or polyurethane foam + HDPE jacket for direct burial applications. This reduces on-site labor and ensures uniform corrosion protection.
A: Yes. Every pipe is marked with heat number, size, and standard. Mill Test Certificates (EN 10204 3.1) are provided. Third-party inspection by SGS, BV, or TÜV can be arranged at our facility with no delay to shipment.
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