Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of customized size straight seam steel pipe manufacturer in China. Welcome to buy discount customized size straight seam steel pipe manufacturer made in China here from our factory. Quality products and low price are available.
Product introduction
We are a professional customized size straight seam steel pipe manufacturer with strong production capacity, complete certifications, and extensive customization capabilities, mainly serving global clients in oil & gas, water supply, construction, machinery, and structural engineering fields.
Core Advantages
1. Strong Customization Capability
Size Range:
ERW (High-Frequency Welded): OD Φ76–630mm, wall thickness 2.5–20mm
LSAW (Double-Sided Submerged Arc Welded): OD Φ406–1422mm, wall thickness 6–80mm
Large-diameter customized: Up to Φ2620mm, wall thickness 8–80mm
Length: 3–20m (customizable per order)
Materials: Q195–Q355, X42–X70, L245–L485, 20#, 16Mn, API 5L grades, and high-strength structural steels
Standards: GB/T 3091, API 5L, API 2B, ASTM A53, EN10219, CE, and other international standards
2. Production & Quality Assurance
Production Lines: 17 automated production lines (14 ERW, 3 LSAW), annual capacity over 2 million tons
Certifications: ISO9001, ISO14001, ISO45001, API 5L/2B, CE, Special Equipment Manufacturing License, CNOOC qualification
Testing: Full physical/chemical testing, ultrasonic testing (UT), radiographic testing (RT), hydrostatic pressure test, dimensional inspection
3. Service & Application
Custom Services: Non-standard size design, material selection, surface treatment (black, galvanized, 3PE/2PE anti-corrosion), cutting, beveling, and packaging
Applications: Oil/gas transmission, water supply/drainage, structural steel, bridges, piling, machinery, power projects, shipbuilding
Certifications

API 2B

API 5L

GOST

ISO 9001

EN 10219

EN 10210
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