SS400 Hot Rolled Steel Coil | JIS G3101 Mild Carbon Hot Rolled Coil

SS400 Hot Rolled Steel Coil | JIS G3101 Mild Carbon Hot Rolled Coil

  1. Stable mechanical property, widely accepted for JIS standard projects
  2. Superior formability and weldability for bending and stamping processing
  3. Complies with JIS G3101, ideal for Southeast Asian procurement
  4. Flexible custom processing: slitting, flattening and cut to length
  5. Complete inspection documents, large stock capacity for bulk orders
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Product Overview

SS400 Hot Rolled Steel Coil is a popular mild carbon structural hot rolled steel manufactured in accordance with JIS G3101 Japanese industrial standard. It is one of the most common hot rolled materials favored by buyers from Southeast Asia, Middle East and many other regions.

Produced by continuous high-temperature hot rolling process, SS400 steel coil has uniform internal grain structure and good ductility. It does not require strict impact test in normal usage, which simplifies fabrication and lowers project cost. This grade can be easily welded, bent, punched and cut into different structural components.

Typical applications include factory building frames, steel supports, machinery bases, container accessories, guardrails and general metal fabrication. Our factory provides full size range of SS400 hot rolled coils, together with secondary processing services.

Hot-Rolled Steel Coil

Chemical & Mechanical Property Snapshot

Item Standard SS400 Specification
Carbon (C) Max JIS G3101 ≤0.26%
Manganese (Mn) Max JIS G3101 ≤1.40%
Silicon (Si) JIS G3101 No required limit
Phosphorus (P) Max JIS G3101 ≤0.050%
Sulfur (S) Max JIS G3101 ≤0.050%
Yield Strength JIS G3101 ≥245 MPa (Thickness ≤16mm)
Tensile Strength JIS G3101 400 – 510 MPa
Elongation JIS G3101 ≥21%

Detailed Technical Specifications

Category Item
Product Name SS400 Hot Rolled Steel Coil
Product Type Hot Rolled Mild Carbon Structural Steel Coil
Executive Standard JIS G3101
Material Grade SS400
Manufacturing Process High Temperature Continuous Hot Rolling
Surface Condition Standard hot rolled black surface, pickled & oiled optional
Thickness Range 1.8mm – 24.0mm
Width Range 750mm – 2000mm
Coil Inner Diameter 508mm / 610mm
Single Coil Weight 7 – 30 Tons
Processing Service Slitting, flattening, cutting, custom fixed length
Mechanical Performance Bending, welding, stamping, drilling available
Characteristic Good ductility, easy fabrication, stable tensile property
Application Steel building, machinery frame, guardrail, general metal parts
Quality Certificate MTC 3.1 / 3.2, third-party inspection acceptable
MOQ 5 Tons
Payment Terms T/T, L/C at sight
Delivery Time 7–15 working days after deposit
Export Packaging Waterproof paper + plastic film + steel strip packing, seaworthy standard

Product Comparison Table

Grade Yield Strength Tensile Strength Elongation Core Feature Main Application
SS330 ≥205MPa 330–430MPa ≥23% Soft mild carbon grade Simple formed components
SS400 ≥245MPa 400–510MPa ≥21% General structural grade Building frames & general fabrication
SS490 ≥325MPa 490–610MPa ≥19% Higher strength structural steel Heavy load supports
SPHC No specified yield 270–410MPa ≥30% Deep drawing hot rolled coil Stamped & deep drawn parts

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

SS400 coil is widely used for factory steel structures, machinery bases, guardrails and various general metal fabrication projects.

SS400 follows JIS G3101 Japanese standard, widely used in Southeast Asia and Asian engineering projects.

The tensile strength range is 400–510 MPa, minimum yield strength ≥245MPa for thickness ≤16mm.

Yes, we provide slitting, flattening and cut-to-length service according to customer drawings.

SS400 is often treated as equivalent for reference only. Chemical and mechanical differences exist, cannot be replaced directly without engineering confirmation.

Yes, MTC 3.1/3.2 documents can be provided for each batch for inspection and customs clearance.

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Why choose us?

  • ISO, SGS, TÜV, WTRUST, Lloyd’s Register, and DNV certifications

  • Customizable sizes, grades, and surface finishes

  • Full material traceability and inspection reports

  • Responsive support and fast global delivery


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