Core best-selling materials and their applications

Material Selection:

3 Popular JIS-Standard Channel Steel Grades

1. SS400 (Most Widely Available) – JIS G3101

Yield Strength ≥ 245 MPa; Tensile Strength 400–510 MPa

Carbon steel for general structural use. No mandatory impact testing; offers good weldability and formability; most cost-effective option.

Comparable to: Q235B (China) / A36 (ASTM/USA)

Applications: General supports, equipment bases, secondary structural components for industrial buildings, guardrails; a primary choice for projects in Southeast Asia.

2. SM490A / SM490B (High-Strength Steel for Welded Structures) – JIS G3106

Yield Strength ≥ 325 MPa; Tensile Strength 490–610 MPa

Low-alloy, high-strength steel designed specifically for welded structures, with stricter controls on sulfur (S) and phosphorus (P) content. Grade B is subject to impact testing.

Comparable to: Q355B (China) / A572 Gr50 (ASTM/USA)

Applications: Heavy-duty frameworks, bridges, bases for construction machinery, and supports for pressure vessels; frequently specified for projects involving Japanese companies.

3. SN490B (Specialized for Seismic-Resistant Construction) – JIS G3136

Yield Strength ≥ 325 MPa; Tensile Strength 490–610 MPa

Steel specifically for building structures. Features mandatory impact testing, carbon equivalent limits, and strict control over the yield-to-tensile strength ratio; offers excellent seismic performance.

Applications: Primary structural frameworks for buildings in Japan, seismic-resistant frames, critical load-bearing steel structures, and projects exported to Japan.

Our factory's core export advantage lies in its JIS standard channel steel:

Full range in stock, one-stop procurement. Sufficient inventory of mainstream JIS standard channel steel specifications, which can be shipped in sets with JIS H-beams, I-beams, angle steel, and steel plates, reducing overall procurement, communication, and shipping costs.

Strictly adhering to JIS G3101/G3106, SS400 and SM490 meet composition and mechanical property standards, with complete documentation, ensuring hassle-free acceptance and customs clearance for projects in Japan, South Korea, and Southeast Asia.

High-precision specialized rolling. Custom-made JIS G3192 standard rolls, conforming to JIS G3192 in dimensions, straightness, and tolerances, offering excellent surface quality suitable for welding, galvanizing, and deep processing.

Large-scale hot rolling production lines provide fast shipping from in-stock items. Custom-made and deep-processing orders are efficiently scheduled. Professional container loading increases cargo volume and saves on ocean freight costs.