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Home > Metallurgy, Mineral & Energy > Steel & Products > Steel H Beam > Carbon Steel I-Beam for Bridge Support Structure JIS G3101 SS400

Carbon Steel I-Beam for Bridge Support Structure JIS G3101 SS400

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Product Spotlights

Our Carbon Steel I-Beam JIS G3101 SS400 is engineered for bridge support structures, offering high strength, excellent weldability, and precise dimensions. Backed by ISO9001:2015 certification and a yearly export value of US$50-100 million, we deliver reliable quality and flexible customization. Ideal for heavy-load applications, cost-effective, and globally accepted.

Negotiable MOQ: 1 Ton (Price negotiable depending on order volume and customization)

Key Specifications

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Standard:

Other, JIS G3101

Certification:

Other, ISO9001:2015

Material:

Carbon Steel (SS400)

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Hemaokang Steel (Shandong) Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

Qingdao Port

Delivery Detail:

7 days

Product Details
Company Profile
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Standard Other, JIS G3101

Certification Other, ISO9001:2015

Material Carbon Steel (SS400)

Section Shape I-Beam / H-Beam

Application Bridge Support Structure

Length Customizable (6m-12m or as required)

Surface Treatment Black, Galvanized, Painted (optional)

Flange Width 100mm-300mm (custom)

Web Thickness 5mm-20mm (custom)

Brand Hemaokang Steel (custom available)

Hemaokang Steel (Shandong) Co., Ltd. is a reliable manufacturer and exporter of high-quality steel products. Our Carbon Steel I-Beam for Bridge Support Structure JIS G3101 SS400 is designed to meet the rigorous demands of modern infrastructure projects. With a strong commitment to excellence and backed by our ISO9001:2015 certified quality management system, we deliver beams that combine strength, durability, and precise dimensional accuracy. Whether you are building highway bridges, railway overpasses, or pedestrian crossings, our SS400 I-Beam offers the structural integrity you need for long-lasting performance.

This product is manufactured from premium carbon steel conforming to the Japanese Industrial Standard JIS G3101 SS400, which is widely recognized for its excellent weldability, machinability, and balanced mechanical properties. The I-beam profile provides an optimal strength-to-weight ratio, making it an ideal choice for load-bearing applications in bridge support structures. Our beams are available in various sizes and can be customized to your specific project requirements, ensuring a perfect fit for your engineering design.

Key Features & Technical Specifications

High Tensile Strength & Yield Strength: SS400 steel offers a minimum yield strength of 235 MPa (for thickness ≤16mm) and tensile strength of 400-510 MPa, ensuring reliable performance under heavy loads.
Excellent Weldability: Low carbon content and consistent chemistry make it easy to weld without preheating or post-weld heat treatment in most applications.
Precise Dimensions: Manufactured with strict tolerance control (JIS G3192) to ensure accurate flange width, web thickness, and beam length.
Durable Surface Options: Available in black finish (as-rolled), painted, or hot-dip galvanized to resist corrosion in outdoor environments.
Customizable Length: Standard lengths from 6m to 12m, with custom lengths available upon request to minimize on-site cutting waste.
Wide Range of Sizes: Flange width from 100mm to 300mm, web thickness from 5mm to 20mm, and beam height from 100mm to 600mm (or tailored to your needs).

Parameter	Specification
Standard	JIS G3101 SS400
Material	Carbon Steel
Yield Strength (min)	235 MPa (t ≤ 16mm)
Tensile Strength	400 – 510 MPa
Elongation	≥ 17% (for thickness ≤16mm)
Surface Finish	Black, Painted, Galvanized (optional)
Length Tolerance	+0/-50mm (standard), tighter available

Advantages for Bridge Support Applications

Enhanced Load-Bearing Capacity: The I-beam shape efficiently distributes vertical and lateral loads, making it suitable for primary and secondary support members in bridges.
Cost-Effective Solution: Compared to other structural shapes, I-beams offer a favorable strength-to-weight ratio, reducing material costs and foundation requirements.
Easy Fabrication & Installation: Our beams can be cut, drilled, and welded on-site with standard equipment, speeding up construction timelines.
Long-Term Reliability: Consistent mechanical properties and corrosion resistance options ensure decades of service with minimal maintenance.
Global Compliance: JIS G3101 SS400 is accepted worldwide and compatible with many international design codes (e.g., ASTM A36, EN 10025 S235JR).

At Hemaokang Steel (Shandong) Co., Ltd., we take pride in our professional team of 51-100 employees and our annual export value exceeding US$50 million. Our products are shipped to markets across North America, South America, Europe, Asia, Africa, and Oceania, serving a wide range of infrastructure projects. We are ISO9001:2015 certified, ensuring every beam undergoes rigorous quality control from raw material inspection to final packaging. Our factory in Liaocheng, Shandong, China, is equipped with advanced production lines that enable us to fulfill large orders with consistent quality and on-time delivery.

We understand that every bridge project is unique, which is why we offer flexible customization options. Whether you need specific dimensions, special surface treatments, or additional testing reports (such as third-party mill certificates), we are ready to accommodate your requirements. Our experienced sales and technical team will work closely with you from inquiry to delivery, ensuring a smooth procurement experience.

Choose Hemaokang Steel as your trusted partner for carbon steel I-beams. Contact us today to discuss your project needs, request a quotation, or request samples. We are committed to providing high-quality products at competitive prices, backed by reliable after-sales support. Let us help you build safer, stronger bridges.

Frequently Asked Questions (FAQ)

Q: What is the difference between SS400 I-beam and ASTM A36 I-beam?
A: Both are structural carbon steel beams with similar mechanical properties. SS400 follows JIS G3101 standard, while A36 follows ASTM standard. They are often interchangeable in many applications, but we recommend checking your local design code. Our SS400 beams are fully compatible with A36 specifications upon request.
Q: Can you provide a mill test certificate (MTC) for the I-beams?
A: Yes, we can provide a mill test certificate from our factory, as well as an independent third-party inspection report if required. The MTC includes chemical composition and mechanical test results.
Q: What lengths and sizes are available for the SS400 I-beam?
A: We offer standard lengths from 6m to 12m, and custom lengths up to 18m (subject to transportation). The flange width range is 100-300mm, web thickness 5-20mm, and beam height 100-600mm. For sizes outside this range, please contact us to discuss feasibility.
Q: How do you ensure the quality of the beams?
A: Our factory is ISO9001:2015 certified. We perform inspections at every stage: raw material chemical analysis, dimensional checks during rolling, mechanical testing, and final surface inspection. We also offer third-party inspection services (e.g., SGS, BV) upon request.
Q: What is the surface treatment option for outdoor bridge use?
A: For outdoor applications, we recommend hot-dip galvanizing or anti-corrosion paint. The choice depends on the environmental conditions (humidity, salt exposure, etc.). We can supply beams with a suitable surface treatment according to your specification.
Q: What is the minimum order quantity (MOQ) for SS400 I-beams?
A: Our standard MOQ is 25 tons per size, but we can accommodate smaller quantities for trial orders or urgent projects. Please contact our sales team for a customized quote.
Q: Do you offer pre-cutting or drilling services?
A: Yes, we can provide pre-cut lengths and drilling holes according to your drawings. There is an additional processing fee, but it can save you time and labor on site.
Q: How long does delivery usually take?
A: For standard sizes, delivery typically takes 15-25 days after order confirmation. Custom sizes may require 25-35 days. We will confirm the exact lead time based on your order quantity and specifications.