STKM13C is a carbon steel grade renowned for its robustness and adaptability across multiple applications. Its exceptional weldability enables manufacturers to bend, form, and weld it into various shapes without compromising its structural integrity. As a result, it is widely used in industries such as automotive and construction due to its reliability and ease of processing.
Table of Contents
- STKM13C Chemical Composition
- CNS STKM13C Mechanical Properties
- STKM13C Steel Physical Properties
- STKM13C Equivalent Materials
- Heat Treatment of JIS G3445 STKM13C
- Creep Strain Limit of CNS STKM13C
- Operating Temperature Range of STKM13C
- Hardness of STKM13C Steel Grade
- Applications of JIS STKM13C
- Product Range of JIS G3445 STKM13C
- Manufacturing Process of JIS STKM13C
- Delivery Conditions of JIS G3445 Grade STKM13C
- Tolerance on Outside Diameter of STKM 13C Material
- Tolerance on Thickness of CNS STKM13C
- Process Performance of STKM 13C Steel
- Characteristics of JIS STKM13C
STKM13C Chemical Composition
JIS G3445 Grade STKM13C Tubes: Easy to Form and Shape, Excellent Mechanical Properties
STKM13C Tubes are exceptionally easy to form and shape, making them ideal for bending, welding, and shaping into various forms without causing any issues to the material. This property simplifies the fabrication process, reducing labor costs and enabling precise construction of complex designs. Engineers appreciate these features when working on their projects.
Mechanically, STKM13C exhibits impressive tensile strength, with a minimum tensile stress of 539 MPa, ensuring its ability to withstand stretching or pulling without breaking. This is crucial in applications requiring structural strength and load-bearing capabilities.
The yield strength of STKM13C is 488 MPa or higher, meaning it can endure significant loads without permanent deformation. This makes it suitable for industries that require high structural strength and resistance to damage under load, including automotive, machinery, and construction sectors.
CNS STKM13C Mechanical Properties
| Tensile Strength Rm (MPa) |
Yield Strength Rp0.2 (MPa) |
Elongation A (%) |
Impact Energy KV/Ku (J) |
|---|---|---|---|
| 539 (≥) | 488 (≥) | 21 | 22 |
STKM13C Steel Physical Properties
| Temperature (°C) |
Young's Modulus (GPa) |
Thermal Conductivity (W/m·°C) |
Specific Heat Capacity (J/kg·°C) |
|---|---|---|---|
| 364 | 979 | 31.3 | 142 |
STKM13C Equivalent Materials
- GB/T 8713 GB/T 3639 20#
- ASTM A519 Grade 1020
- EN 10305-1 E355+SR
- ISO 683-1 C20E4
- DIN 2391 ST52 BK+S
CNS STKM13C Used in Machinery and Automobiles, Refer Heat Treatment
The chemical composition of STKM13C makes it suitable for both machinery and automobile applications. In machinery, it is used for structural components due to its strength and durability, supporting heavy loads and pressures while maintaining stability. For automobiles, its corrosion resistance and ability to handle high temperatures make it ideal for vehicle construction, ensuring durability and safety.
Heat Treatment of JIS G3445 STKM13C
| Heat Treatment | 1491°C – 1554°C |
|---|
Creep Strain Limit of CNS STKM13C
| Creep Strain Limit (10,000 hours) (Rp1,0) N/mm² |
399 |
|---|
STKM13C Steel Contains Up to 0.25% Carbon, View Operating Temperature
With up to 0.25% carbon content, STKM13C offers excellent strength and ductility. The carbon enhances hardness and tensile strength, making the material more resistant to wear and capable of handling higher pressures effectively.
Operating Temperature of STKM13C Material
| Operating Temperature | 743 °C |
|---|
STKM13C Steel Grade Hardness
| Brinell Hardness (HBS) | 175-245 |
|---|---|
| Rockwell Hardness (HRC) | 30 |
JIS STKM13C Applications
- Furniture
- Machinery
- Bicycles
- Automobiles
- Appliances
Refer to the Product Range of JIS G3445 STKM13C
STKM13C offers a versatile product range that can be used across numerous manufacturing and industrial applications, providing reliability and flexibility in diverse projects.
Range of Products of JIS G3445 STKM13C
| Products | Dimensions |
|---|---|
| Plates/Sheets | 0.08-200mm (T) * W * L |
| Steel Bar | 8-1200mm * L |
| Strip / Coil | 0.03-16.0x1200mm |
| Seamless / Welded Pipes | OD: 6-219mm x WT: 0.5-20.0mm |
View the Manufacturing Process of JIS G3445 Grade STKM13C
STKM13C Manufacturing Process
Forging of STKM13C is typically performed at temperatures ranging from 2012°F to 2192°F. During this process, the material is heated to make it malleable and then shaped under high pressure into the desired form. Maintaining precise temperature control is essential to avoid damaging the material.
The hot rolling process involves heating STKM13C to temperatures between 2000°F and 2400°F. At this elevated temperature, the material becomes pliable and can be easily shaped. It is then passed through rollers to reduce its thickness to the desired size for specific applications.
Cold rolling improves the strength and hardness of the material through stress hardening, while maintaining a smooth surface and finish.
Casting of STKM13C involves melting the material at temperatures ranging from 2597°F to 2804°F. This process requires melting the steel in a furnace until it reaches a liquid state within the specified temperature range. Once fully molten, the material is poured into molds to form the desired shape.
JIS STKM13C Manufacturing Process
- Forging
- Hot Rolling
- Cold Rolling
- Cast
- Cold-Rolled
- Hot-Rolled
- Hot Extrusion
Delivery Conditions of JIS G3445 Grade STKM13C
- Annealed
- Solution and Aging
- Quenched and Tempered
- Acid Washed
- Shot Blasting
- Rough Turning
Tolerance on Outside Diameter of STKM 13C Material
| Division | Tolerances on the OD |
| No. 1 | Under 50mm ±0.5mm |
| 50mm or over ±1% | |
| No. 2 | Under 50mm ±0.25mm |
| 50mm or over ±0.5% |
Tolerance on Thickness of CNS STKM13C
| Size | Tolerance |
|---|---|
| Under 4mm | +0.6mm to -0.5mm |
| 4mm or over | -12.50% to +15% |
STKM 13C Steel Process Performance
| Steel Grade | Machinability | Weldability | Hardenability | Cold Formability |
|---|---|---|---|---|
| STKM 13C | Good | Excellent | Low | Good |
Features of JIS STKM13C
- High dimensional accuracy
- Exceptional surface finish
- Good ductility
- Versatile and adaptable
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