JIS G3445 STKM13C is a carbon steel tube widely used in various industries for its excellent mechanical properties and chemical composition. This article provides a detailed overview of the product, including its chemical composition, mechanical properties, heat treatment conditions, available size range, low-temperature impact test, primary applications, and relevant supply cases from TJC Steel Group.

Chemical Composition:

The chemical composition of JIS G3445 STKM13C is carefully controlled to ensure the material's mechanical properties and performance. The typical chemical composition is as follows:

· Carbon (C): 0.10-0.20%

· Silicon (Si): 0.15-0.35%

· Manganese (Mn): 0.30-0.60%

· Phosphorus (P): ≤ 0.035%

· Sulfur (S): ≤ 0.035%

· Chromium (Cr): ≤ 0.15%

· Nickel (Ni): ≤ 0.20%

· Copper (Cu): ≤ 0.30%

· Iron (Fe): Balance

Mechanical Properties:

The mechanical properties of STKM13C are characterized by its high strength and excellent ductility. The typical mechanical properties are as follows:

· Tensile Strength: 370-520 MPa

· Yield Strength: 235 MPa minimum

· Elongation: 25% minimum

· Hardness: ≤ 179 HB

Heat Treatment Conditions:

STKM13C tubes are generally supplied in the normalized condition. However, they can also be supplied in the annealed condition if required by the application. The heat treatment process ensures that the tubes have the desired mechanical properties and are free from internal stresses.

Available Size Range:

TJC Steel Group offers JIS G3445 STKM13C carbon steel tubes in a wide range of sizes to meet the diverse needs of our customers. The available size range is as follows:

· Outer Diameter: 6.0 mm to 219.1 mm

· Wall Thickness: 0.5 mm to 20 mm

· Length: Customizable based on customer requirements

Low-Temperature Impact Test:

STKM13C tubes are subjected to a low-temperature impact test to ensure their performance in cold environments. The tubes are tested at -10°C, and the impact energy should be ≥ 40 J.

Primary Applications:

Due to its excellent mechanical properties and chemical composition, JIS G3445 STKM13C is widely used in various applications, including:

· Automotive parts

· Mechanical structures

· General engineering purposes

· Hydraulic props

· Pneumatic cylinders

TJC Steel Group Supply Cases:

TJC Steel Group has extensive experience in supplying high-quality JIS G3445 STKM13C carbon steel tubes to customers worldwide. One notable supply case involved the supply of STKM13C tubes for the construction of a large-scale hydraulic system in a mining operation. The tubes were used to manufacture hydraulic cylinders, which required high strength and excellent ductility to withstand the harsh operating conditions.

In another case, TJC supplied STKM13C tubes for the automotive industry, where they were used to manufacture critical components in vehicles. The tubes' superior mechanical properties and precise dimensions ensured the components' reliability and performance.

In conclusion, JIS G3445 STKM13C carbon steel tubes are a versatile and reliable material suitable for a wide range of applications. TJC Steel Group is committed to providing high-quality products and excellent customer service, making us a trusted supplier of STKM13C tubes worldwide.