SS400 Hot Rolled Steel Coil
SS400 is a Japanese standard carbon structural steel coil under JIS G 3101, featuring a minimum tensile strength of 400 MPa. It is the global benchmark for general structural applications, offering excellent weldability, workability, and cost-efficiency.
| Material | Carbon Structural Steel (Hot Rolled) |
|---|---|
| Grade / Standard | JIS G 3101 SS400 |
| Thickness | 1.2mm - 20.0mm |
| Width | 600mm - 2500mm |
| Inner Diameter (ID) | 508mm / 610mm / 760mm |
| Coil Weight | 5-28 Tons |
| Delivery Condition | Hot Rolled,Pickled & Oiled,Control Rolled |
| Surface Treatment | coated |
| MOQ | 10 Tons |
| Delivery Time | 15-30 Days / In Stock |
| Loading Port | Tianjin / Shanghai / Qingdao |
Overview of SS400 Hot Rolled Steel Coil
SS400 is a fundamental carbon structural steel grade defined under the Japanese Industrial Standard JIS G 3101. The designation ‘SS’ stands for Steel Structure, and ‘400’ signifies a minimum tensile strength of 400 MPa. Recognized globally as one of the most reliable and versatile hot-rolled steel grades, SS400 is the premier choice for general structural engineering due to its balanced mechanical properties, excellent cost-efficiency, and superior adaptability to various industrial fabrication processes.
Shandong Tanglu Metal Material Co., Ltd. supplies premium SS400 hot rolled coils produced through high-precision continuous rolling mills. This grade is characterized by its predictable yield behavior and robust tensile performance, making it an essential material for the global construction and machinery sectors. For B2B buyers, SS400 represents a standardized, high-volume material solution that guarantees structural integrity and ease of use in diverse large-scale manufacturing and infrastructure projects.
Key Features and Structural Advantages
The primary advantage of SS400 hot rolled steel coil lies in its exceptional versatility and workability. While the JIS standard primarily focuses on tensile strength rather than strict chemical limits, our SS400 coils are manufactured with optimized carbon levels to ensure reliable weldability using standard industrial methods (MIG, TIG, and Arc welding). It exhibits good formability and cold-bending characteristics, allowing for the efficient production of structural sections, pipes, and mechanical components.
Our SS400 coils are available in standard thicknesses from 1.2mm to 20mm and widths up to 2500mm. The material provides a stable, uniform surface finish typical of high-quality hot-rolled products. For specialized applications requiring advanced surface precision, we offer Pickled and Oiled (P&O) SS400 coils, which provide a clean surface free from mill scale, making them ideal for high-precision laser cutting, precision stamping, and premium painting or galvanizing lines.
Main Applications of SS400 Hot Rolled Coil
SS400 hot rolled steel coil is the industry standard for a vast range of general structural applications. It is widely utilized in the construction of building frames, industrial warehouses, and highway bridge supports where reliable tensile strength is critical. In the infrastructure sector, it serves as the primary material for manufacturing transmission tower members, structural brackets, and various civil engineering components.
Beyond civil construction, SS400 is extensively used in the machinery and transportation sectors. It is a vital material for manufacturing vehicle chassis, agricultural equipment frames, and general machine parts. It also serves as the fundamental choice for producing welded structural pipes, heavy-duty shelving, and industrial hardware. Its reliability and excellent value make it an indispensable asset for steel service centers and large-scale fabricators globally.
Why Choose Us for SS400 Hot Rolled Steel Coil
Shandong Tanglu Metal Material Co., Ltd. supplies high-grade SS400 hot rolled steel coil sourced from Tier-1 mills with advanced control rolling systems. We provide comprehensive Mill Test Certificates (MTC) for every batch, documenting full compliance with JIS G 3101, including precise tensile strength, yield points, and chemical heat analysis.
Our logistical expertise allows for flexible coil weights from 5 to 28 tons and specialized seaworthy packaging designed to prevent physical damage and oxidation during international transit. With a consistent monthly supply capacity of 22,000 tons and professional technical support, we provide B2B clients with the material consistency, reliable lead times, and competitive pricing required for large-scale industrial and infrastructure deployments.
📐 Dimension & Size Table
| Thickness (mm) | Width (mm) | Length (mm) | Weight (kg/m²) |
|---|---|---|---|
| 1.5 | 1000-1250 | 400-510 | 245 |
| 2.0 | 1000-1500 | 400-510 | 245 |
| 3.0 | 1000-1800 | 400-510 | 245 |
| 5.0 | 1000-1800 | 400-510 | 245 |
| 8.0 | 1200-2000 | 400-510 | 245 |
| 10.0 | 1200-2200 | 400-510 | 245 |
| 12.0 | 1500-2500 | 400-510 | 245 |
| 16.0 | 1500-2500 | 400-510 | 235 |
* Custom sizes available upon request. Tolerances per relevant international standards.
🔬 Chemical Composition
| Element | Min | Max | Display Value | Note |
|---|---|---|---|---|
| P | - | 0.050 | ≤0.050 | JIS G 3101 Standard |
| S | - | 0.050 | ≤0.050 | |
| C | - | 0.20 | Ref ≤0.20 | Typically controlled |
| Mn | - | 0.60 | Ref ≤0.60 |
* Chemical composition may vary by heat, thickness and specification. Please refer to the actual mill test certificate.
⚙️ Mechanical Properties
| Property | Value | Unit | Test Condition |
|---|---|---|---|
| Tensile Strength | 400 - 510 | MPa | JIS G 3101 |
| Yield Strength (t≤16mm) | ≥245 | MPa | |
| Yield Strength (16<t≤40mm) | ≥235 | MPa | |
| Elongation (t≤16mm) | ≥21 | % |
* Values shown are minimum requirements unless otherwise stated.
📦 Commercial Information
| Packaging | Standard seaworthy export packing, bundled with steel strips and angle iron protection, with desiccant inside to prevent moisture. |
|---|---|
| Payment Terms | T/T (Telegraphic Transfer),L/C (Letter of Credit),D/P (Documents against Payment),Western Union |
| Price Term | FOB,CFR,CIF,DDP |
| Supply Capacity | 22,000 Tons/Month |
| Loading Port | Tianjin / Shanghai / Qingdao |
Why Choose Our SS400 Hot Rolled Steel Coil?
Proven Tensile Strength
Guaranteed 400-510 MPa tensile performance provides the necessary structural safety for bridges, building frames, and industrial vehicles.
Highly Adaptable Workability
Optimized mechanical properties ensure excellent welding, bending, and cutting performance, making it a favorite for diverse fabrication projects.
Global Standard Utility
As one of the world's most common grades, SS400 offers unmatched availability and cost-efficiency for large-volume industrial and construction orders.
🏭 Applications of SS400 Hot Rolled Steel Coil
SS400 hot rolled steel coil is the essential material for global construction, widely used in skyscraper skeletons, large-span warehouses, and highway bridge supports. It is the primary raw material for producing welded pipes, C-channels, and industrial sections used in infrastructure. In the transportation industry, it is utilized for vehicle chassis, rail cars, and ship structure members. SS400 also serves as the standard choice for manufacturing machinery frames, storage racks, and general industrial hardware components.
📋 Quality & Certification
Our Certifications
- ✅ ISO 9001,JIS G 3101,CE,SGS
- ✅ CE Marking
- ✅ SGS Certified
Mill Certificate Type
- 📋 EN 10204 3.1,Original Mill Test Certificate,Mechanical Testing Report,Surface Condition Report,Certificate of Origin
- 📋 EN 10204 3.2
- 📋 Original Mill Certificate
- 📋 Third Party Inspection Available
- 📋 Certificate of Origin
❓ Frequently Asked Questions
What does SS400 stand for?
SS stands for Steel Structure, and 400 represents the minimum tensile strength of 400 MPa, as defined in the Japanese Industrial Standard JIS G 3101.
What is the difference between SS400 and Q235B?
SS400 is a Japanese grade (JIS), while Q235B is a Chinese grade (GB). They are very similar and often used interchangeably; however, SS400 is defined primarily by its tensile strength, whereas Q235B is defined by its yield strength.
Is SS400 steel weldable?
Yes, SS400 is a highly weldable low-carbon steel. It can be easily joined using MIG, TIG, or standard arc welding without specialized heat treatments for most thicknesses.
What is the equivalent of SS400 in US standards?
The closest American equivalent to SS400 is ASTM A36. Both are general-purpose carbon structural steels used extensively in construction.
What are the common surface finishes for SS400 coils?
The most common finish is the standard hot-rolled black surface (with mill scale). For applications requiring cleaner surfaces, we provide Pickled and Oiled (P&O) SS400 coils.
Request Quote for
SS400 Hot Rolled Steel Coil
Submit your requirements and receive a competitive price quote within 24 hours.
- ✓ Fast response within 24 hours
- ✓ Competitive factory-direct pricing
- ✓ Free technical consultation
- ✓ Mill test certificate provided
- ✓ Flexible payment terms available
⏱ Response in under 24 hours
Send Your Inquiry
All fields marked with * are required