Steel Pipes and Tubes

ShunChen smooth surface round steel bar for machining are cold drawn with diameter tolerance ±0.02mm and surface roughness Ra≤1.6μm. Available in 3–100mm diameter, 2–6m length, cut to 12m, steel grades 10#, 20#, 45#, 40Cr, 304. They reduce machining allowance and suit automotive and precision machinery parts.

Shunchen specializes in large diameter Spiral Welded Steel Pipe for water transmission. Compliant with AWWA C200 and API 5L, our pipes feature non-toxic internal linings and 3PE anti-corrosion coatings. We offer diameters up to 3620mm for safe, long-distance fluid transport.

Looking for a reliable large diameter spiral welded pipe manufacturer? Shunchen supplies Large Diameter Spiral Welded Pipe for Infrastructure with outer diameters from 711 mm to 3620 mm and wall thicknesses from 6 mm to 60 mm. The pipes are manufactured using spiral forming and double-sided submerged arc welding, and can be produced to API 5L, GB/T9711, GB/T3091 and SY/T5037.

Shunchen provides Hot Rolled Steel Hexagon Bar For Machining Parts for wholesale purchase and industrial applications. Manufactured from Q235B and Q355B carbon structural steel, these hexagonal bars feature stable dimensions, machining-friendly surfaces and flexible processing options. Available with cutting, drilling, threading and surface treatments, they comply with GB, ISO, EN, ASTM and DIN standards for mechanical parts, fasteners and equipment manufacturing.

Alloy Steel Hex Bar For Mechanical Applications from Shunchen is a hexagonal steel material designed for mechanical component production. Its alloy steel composition provides improved hardness, strength, and resistance to deformation under working loads. The product is commonly processed into shafts, pins, fasteners, and customized parts for industrial equipment.

The Shunchen Seamless Round Steel Pipe For Pressure Applications delivers exceptional strength, uniform wall thickness, and weld-free structural integrity. Made from Q235B, Q345B, Q355B, or stainless steel, it handles high internal pressures, dynamic surge loads, and harsh industrial environments.