JIS G3101 SS400/SS490/SS540 Cold Rolled Steel Plate

JIS G3101 SS400 is a common carbon structural steel grade. Other grades of JIS G3101 are ss330, ss490 and ss540. Related product types include steel plate, steel plate, steel section, steel pipe, etc.


SS400 is a marking method for Japanese steel materials and a judgment standard, which is equivalent to Q235 steel. Ordinary structural steel in Japanese steel (JIS series) grades mainly consists of three parts: SS400-S means steel, the second S means “structure”, 400 is the lower limit tensile strength of 400MPa. SS400 steel plate itself not only has high strength, but also has certain comprehensive high-quality properties such as toughness, fatigue resistance, impact resistance, corrosion resistance, low temperature impact resistance, welding and easy processing. SS400 steel plates are widely used in construction and engineering structures.


Product Parameters

Product NameJIS G3101 SS400/SS490/SS540 Cold Rolled Steel Plate
Production ProcessHot Rolling, Cold Rolling
Material StandardsAISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc.
Length1m-12m, or Customized Size
Delivery ConditionsRolling, Annealing, Quenching, Tempered or Standard
Surface ProcessOrdinary, Wire Drawing, Laminated Film

Chemical Composition

SS5400.30 max1.60 max0.040 max0.040 max

Mechanical Properties

BrandYield StrengthTensile Strength
 ≤ 1616-4040-100>100

Scope of Application

JIS G3101 scope of application: JIS G3101 steel plate and other steel grade products are suitable for general structural buildings, such as bridges and ships.



We have complete testing equipment and strong technical force. The company has advanced production equipment, equipped with key equipment such as pressing machines, large heat treatment furnaces, beveling machines, sawing machines, large sandblasting machines, and various testing instruments.


Our products are processed by professional technicians, and each product is carefully screened before shipment. We′re pleased to get your Inquiry and we will come back to as soon as possible.


We provide products with competitive prices based on good quality and schedule each shipment on time. We′re pleased to get your Inquiry and we will come back to as soon as possible.


Our main manufactures are stainless steel, galvanized steel, carbon steel and etc. That apply to engineering, coal mine, textile, electric power, boiler, machinery, military industry and other fields.

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The issues you care about

Yes, we could provide the free samples on conditions it is available in stocks, however, the transportation fee is borne by buyer.

Each piece of products is manufactured by certified workshops, inspected piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

We accept third-party inspections such as SGS, V-trust, TUV, DNV, etc.

Yes, we could make custom products according to your specific requirements.

Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers’ requirement.

30% T/T in advance, the balance 70% before delivery. We will show you the photos of products and package before you pay the balance.


For stocks, we could transport the goods to loading port within 7 – 15 days after we received your deposit. For production period, it usually takes about 15 days-30 days after receiving the deposit.

Our company has the ability to supply large projects and offers excellent preferential policies for large orders.

You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Under normal circumstances, we ship from Shenzhen, Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.

Of course, we welcome customers from all over the world to visit our factory. However, some of the plants are not open to the public.

In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.


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Shipping worldwide


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