Explore the comprehensive guide on JIS G3101 SS400 steel, covering its specifications, chemical composition, mechanical properties, equivalent grades, and common applications in construction and industry.
JIS G3101 SS400 is a widely used Japanese standard for structural carbon steel, known for its excellent weldability and machinability, making it suitable for a variety of structural applications.
| Element | Maximum Percentage (%) |
|---|---|
| Carbon (C) | 0.17% for thickness ≤ 16mm; 0.20% for thickness > 16mm |
| Manganese (Mn) | 1.60% |
| Phosphorus (P) | 0.050% |
| Sulfur (S) | 0.050% |
| TAIWAN - CNS | CHINA - GB | JAPAN - JIS | USA - ASTM | GERMANY - DIN |
|---|---|---|---|---|
| SS400 | Q235A, Q235B, Q235C, Q235D | SS400 | A570 Gr.30, A570 Gr.45, A 36/A283M Gr.D | St37-2, Ust37-2, RSt37-2 |
SS400 is extensively used in structural applications such as building frames, bridges, and other construction components due to its strength and weldability. Its versatility also makes it suitable for manufacturing parts that require bending, forming, or welding.
This steel grade exhibits good weldability and machinability, allowing for ease in fabrication and assembly in various structural projects.
While SS400 has modest corrosion resistance, it is often coated or painted to enhance its durability in corrosive environments.
When selecting SS400 or its equivalents for a project, it's essential to consider the specific requirements and standards applicable to ensure optimal performance and compliance.
The 400 series of stainless steels encompasses both ferritic and martensitic alloys, each with distinct chemical compositions tailored to specific applications.
Below is an overview of the typical chemical compositions for common grades within this series:
Martensitic stainless steels are characterized by their specific chemical compositions, which impart unique mechanical properties and corrosion resistance.
| Grade | UNS | Indian / IS | European / EN | %C (Max) | %Mn (Max) | %P (Max) | %S (Max) | %Si (Max) | %Cr | %Ni | %Mo | % Others |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SS410 | S41000 | X12Cr12 | 1.4006 | 0.08 - 0.15 | 1.00 | 0.040 | 0.030 | 1 | 11.50 - 13.50 | 0.75 max | – | – |
| SS415 | S41500 | X02Cr13Ni4Mn1Mo1 | 1.4313 | 0.05 | 0.50 - 1.00 | 0.030 | 0.030 | 0.6 | 11.50 - 14.00 | 3.50 - 5.50 | 0.50 - 1.00 | – |
| SS420 | S42000 | X20Cr13 | 1.4021 | 0.15 min | 1.00 | 0.040 | 0.030 | 1 | 12.00 - 14.00 | 0.75 max | 0.50 max | – |
| SS420J1 | – | X20Cr13 | 1.4021 | 0.16 - 0.25 | 1.00 | 0.040 | 0.030 | 1 | 12.00 - 14.00 | 0.6 | – | – |
| SS420J2 | – | X30Cr13 | 1.4028 | 0.26 - 0.40 | 1.00 | 0.040 | 0.030 | 1 | 12.00 - 14.00 | 0.6 | – | – |
| SS420MoV | – | – | 1.4116 | 0.45 - 0.55 | 1.00 | 0.040 | 0.015 | 1 | 14.00 - 15.00 | – | 0.50 - 0.80 | V = 0.10 - 0.20 |
| SS431 | S43100 | X15Cr16Ni2 | 1.4057 | 0.2 | 1.00 | 0.040 | 0.030 | 1 | 15.00 - 17.00 | 1.25 - 2.50 | – | – |
| BS | – | – | – | 0.6 - 0.7 | 1.00 | 0.028 | 0.020 | 0.75 | 12.50 - 13.50 | – | – | – |
| SS405 | S40500 | X04Cr12Al | 1.4002 | 0.08 | 1.00 | 0.040 | 0.030 | 1 | 11.50 - 14.50 | 0.6 | – | AI = 0.10 - 0.30 |
These compositions are standardized to ensure specific mechanical properties and corrosion resistance suitable for various industrial applications. For detailed specifications and additional grades, consulting standards from organizations such as ASTM International or specific material datasheets is recommended.
Ferritic stainless steels are characterized by their body-centered cubic (BCC) crystal structure and typically contain chromium as the primary alloying element, with little to no nickel content. This composition grants them magnetic properties, good ductility, and resistance to stress corrosion cracking. Below is an overview of the chemical compositions for common ferritic stainless steel grades:
| Grade | UNS | Indian (IS) | European (EN) | %C (Max) | %Mn (Max) | %P (Max) | %S (Max) | %Si (Max) | %Cr | %Ni | %Mo | N (PPM) (Max) | % Others |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SS409L | – | – | – | 0.03 | 1 | 0.04 | 0.02 | 1 | 10.50 - 11.70 | 0.50 max | – | 300 | Ti = 6X (C + N) Min, 0.75 Max |
| SS409Ni | S40975 | X02Cr12Ni1Ti | 1.4516 | 0.03 | 1 | 0.04 | 0.03 | 1 | 10.50 - 11.70 | 0.50 - 1.00 | – | 300 | Ti = 6X(C + N) Min, 0.75 Max |
| SS410S | S41008 | X 04Cr12 | 1.4 | 0.08 | 1 | 0.04 | 0.03 | 1 | 11.50 - 13.50 | 0.60 max | – | – | – |
| SS430 | S43000 | X07Cr17 | 1.4016 | 0.12 | 1 | 0.04 | 0.03 | 1 | 16.00 - 18.00 | 0.75 max | – | – | – |
| SS432 | – | X02Cr18Mo1TiNbZr | – | 0.025 | 1 | 0.04 | 0.03 | 1 | 17.00 - 20.00 | – | 0.40 - 0.80 | 250 | Ti/Nb = 8X(C + N) Min, 0.80 Max |
| SS436 | S43600 | X02Cr17Mo1Nb | – | 0.12 | 1 | 0.04 | 0.03 | 1 | 16.00 - 18.00 | – | 0.75 - 1.25 | – | Nb = 5XC Min., 0.70 Max. |
| SS436L | S43932 | X02Cr17Mo2TiNbZr | – | 0.025 | 1 | 0.04 | 0.03 | 1 | 16.00 - 19.00 | – | 0.75 - 1.25 | 250 | % Nb or & Ti or % combination = 8X (C + N) Min, 0.80 Max |
| SS439 | S43035 | X02Cr18Ti | – | 0.03 | 1 | 0.04 | 0.03 | 1 | 17.00 - 19.00 | 0.50 max | – | 300 | Ti = 0.20 + 4X (C + N) |
| SS441 | S43940 | X02Cr19TiNb | 1.4509 | 0.03 | 1 | 0.04 | 0.015 | 1 | 17.50 - 18.50 | – | – | – | Nb = 3X% C + 0.3 Min. |
| SS444 | – | – | – | 0.025 | 1 | 0.04 | 0.03 | 1 | 17.50 - 19.50 | 1 | 1.75 - 2.50 | 350 | (Ti + Nb) 0.20 + 4(C + N) |
| SS446 | S44600 | X10Cr25 | 1.4749 | 0.2 | 1.5 | 0.04 | 0.03 | 1 | 23.00 - 27.00 | 0.75 | – | 2500 | – |
These compositions are standardized to ensure specific mechanical properties and corrosion resistance suitable for various industrial applications. For detailed specifications and additional grades, consulting standards from organizations such as ASTM International or specific material datasheets is recommended.
Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.
Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.
Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.
The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.
Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.
The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.
When you partner with Sunny Steel, you can stop worrying about meeting deadlines thanks to our responsive and timely service. You'll also say goodbye to unnecessary shopping around. Instead, you'll get white glove service from an expert who understands your needs and can get you the materials you need quickly.
