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JIS G3445 Stkm11a Precision Steel Automobile Tubes
Material, Specification, Key Features
JIS G3445 Stkm11a Precision Steel Automobile Tubes are high-precision tubes designed for automotive applications. They are manufactured according to the Japanese Industrial Standards (JIS) G3445 specification. These tubes are known for their exceptional precision, uniformity, and durability, making them ideal for various automotive components.
Material: Stkm11a steel
Specification: JIS G3445
Key Features:
High precision
Uniformity
Excellent durability
Specifically designed for automotive applications
Chemical Composition
| Element | Composition (%) |
| Carbon (C) | 0.12 - 0.20 |
| Silicon (Si) | 0.15 - 0.35 |
| Manganese (Mn) | 0.60 - 0.90 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.040 |
Mechanical Properties
| Property | Value |
| Tensile Strength | 335 MPa min |
| Yield Strength | 215 MPa min |
| Elongation | 30% min |
| Hardness (HRB) | 75 max |
Physical Properties
| Property | Value |
| Density | 7.85 g/cm³ |
| Thermal Conductivity | 52.9 W/(m·K) |
| Specific Heat Capacity | 0.486 J/g·K |
Process Performance
| Property | Performance |
| Weldability | Excellent |
| Formability | Good |
| Machinability | High |
| Heat Treatment | Suitable |
Steel Grade
Stkm11a is a specific grade of precision steel designated under the JIS G3445 standard. It offers superior characteristics suitable for automotive applications, particularly where precision and reliability are crucial.
Application
JIS G3445 Stkm11a Precision Steel Automobile Tubes find extensive application in various automotive components, including but not limited to:
Suspension systems
Steering columns
Drive shafts
Axles
Chassis components
Possible Alternative Grades
While Stkm11a is a popular choice for precision steel automobile tubes, there are alternative grades available depending on specific requirements. Some possible alternatives include:
Stkm12a
Stkm13a
Stkm14a
Each alternative grade may offer slightly different properties, allowing for customization based on application needs.
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