JIS G3466 Seamless Rectangular Tube and Tubing
Table of Contents
- Introduction
- Material and Specification
- Key Features
- Chemical Composition
- Mechanical Properties
- Physical Properties
Process Performance
- Steel Grade
- Application
Possible Alternative Grades
Introduction
JIS G3466 Seamless Rectangular Tube and Tubing is a standard used for structural steel tubes in shapes such as rectangular and square. It provides guidelines for the manufacturing process and requirements of these tubes.
Material and Specification
| Material | Specification |
| Carbon Steel | JIS G3466 |
| Grade STKR400, STKR490 | |
| Stainless Steel | ASTM A554 |
| Grade SUS304, SUS316 |
Key Features
- Seamless design for superior structural integrity.
- High strength and durability.
- Excellent corrosion resistance.
- Easy to fabricate and weld.
Wide range of sizes and thicknesses available.
Chemical Composition
The chemical composition of JIS G3466 Seamless Rectangular Tube and Tubing may vary depending on the specified grade. The following table outlines the typical chemical composition:
| Grade | Chemical Composition |
| STKR400 | C: 0.25% max, Si: - max, Mn: 1.50% max, P: 0.040% max, S: 0.040% max |
| STKR490 | C: 0.18% max, Si: - max, Mn: 1.50% max, P: 0.040% max, S: 0.040% max |
| SUS304 | C: 0.08% max, Si: 0.75% max, Mn: 2.00% max, P: 0.045% max, S: 0.030% max, Cr: 18.00-20.00%, Ni: 8.00-10.50% |
| SUS316 | C: 0.08% max, Si: 0.75% max, Mn: 2.00% max, P: 0.045% max, S: 0.030% max, Cr: 16.00-18.00%, Ni: 10.00-14.00%, Mo: 2.00-3.00% |
Mechanical Properties
The mechanical properties of JIS G3466 Seamless Rectangular Tube and Tubing are specified for each grade. The following table showcases the typical mechanical properties:
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
| STKR400 | 400-510 | 245 | 23 |
| STKR490 | 490-610 | 325 | 23 |
| SUS304 | 515 | 205 | 40 |
| SUS316 | 515 | 205 | 40 |
Physical Properties
The physical properties of JIS G3466 Seamless Rectangular Tube and Tubing include density and thermal conductivity:
| Grade | Density (kg/m3) | Thermal Conductivity (W/mK) |
| STKR400 | 7850 | - |
| STKR490 | 7850 | - |
| SUS304 | 7980 | 16.3 |
| SUS316 | 8000 | 15.9 |
Process Performance
JIS G3466 Seamless Rectangular Tube and Tubing demonstrates excellent process performance, allowing for seamless fabrication, bending, welding, and machining.
Steel Grade
The steel grades specified for JIS G3466 Seamless Rectangular Tube and Tubing are:
- STKR400: a carbon steel grade suitable for general structural applications.
- STKR490: a higher strength carbon steel grade, suitable for more demanding structural applications.
- SUS304: a stainless steel grade known for its corrosion resistance and versatility.
SUS316: a higher corrosion-resistant stainless steel grade, suitable for harsh environments.
Application
JIS G3466 Seamless Rectangular Tube and Tubing finds its application in various industries, including:
- Construction
- Machinery
- Automotive
- Industrial equipment
Furniture
Possible Alternative Grades
When selecting an alternative grade to JIS G3466 Seamless Rectangular Tube and Tubing, some options to consider could be ASTM A500, EN 10210-1, or ASTM A513. These alternatives offer comparable mechanical and physical properties suitable for similar applications.
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