JIS G4051 S20C Seamless Carbon Steel Pipe
JIS G4051 S20C is a low carbon steel with a carbon content of 0.18%-0.23%. It is an ideal material for applications that require good strength and toughness but do not require high levels of carbon content. S20C seamless carbon steel pipe is a type of steel pipe that is made without a seam or welded joint. It is used in a variety of applications, including hydraulic systems, construction equipment, and machinery.
S20C seamless carbon steel pipe is made from a solid round steel billet that is heated and then pushed or pulled over a mandrel to form a hollow tube. The resulting tube is then processed to improve its strength and durability. The surface of the tube can be treated with various coatings to improve its resistance to corrosion and rust.
The size range of JIS G4051 S20C seamless carbon steel pipe is between 6mm and 610mm in outer diameter (OD), and the wall thickness can be up to 80mm. The length of the pipes can range from a few millimeters to several meters. The tolerances for the OD, wall thickness, and length of the pipes comply with the JIS G4051 standard.
S20C seamless carbon steel pipe is widely used in various industries, including automobile, machinery, construction, and petroleum. It is an economical and reliable material for applications where corrosion resistance and high strength are not critical.
1. Size: The outer diameter of the pipe ranges from 6mm to 830mm, and the wall thickness varies from 1mm to 50mm.
2. Material: The pipe is made of high-quality carbon steel that conforms to JIS G4051 standards.
3. Surface finish: The surface of the pipe can be finished with different coatings such as black painted, oiled, or galvanized to prevent rust and increase longevity.
4. Tolerance: The tolerance for the outer diameter, wall thickness, and length of the pipe is strictly controlled to ensure consistent quality and performance.
5. Application: used in various industries such as automotive, construction, oil and gas, and machinery manufacturing.
S20C Chemical composition and Mechanical properties
| C ≤ |
Si ≤ |
Mn ≤ |
P ≤ |
S ≤ |
Cr | Ni |
|---|---|---|---|---|---|---|
| 0.18-0.23 | 0.15-0.35 | 0.3-0.6 | 0.03 | 0.03 | ≤0.2 | ≤0.2 |
| Mo | Al | Cu | Nb | Ti | V | Ce |
| ≤0.3 | ||||||
| N | Co | Pb | B | Other | ||
| Cr+Ni≤0.35 | ||||||
Mechanical Properties
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Density (×1000 kg/m3) | 7.7-8.03 | 25 | |
| Poisson's Ratio | 0.27-0.30 | 25 | |
| Elastic Modulus (GPa) | 190-210 | 25 | |
| Tensile Strength (Mpa) | 1158 | 25 | oil quenched, fine grained, tempered at 425°C |
| Yield Strength (Mpa) | 1034 | ||
| Elongation (%) | 15 | ||
| Reduction in Area (%) | 53 | ||
| Hardness (HB) | 335 | 25 | oil quenched, fine grained, tempered at 425°C |
Thermal Properties
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Thermal Conductivity (W/m-K) | 42.7 | 100 | |
| Specific Heat (J/kg-K) | 477 | 50-100 | |
Physical Properties
| Quantity | Value | Unit |
|---|---|---|
| Thermal expansion | 16 - 17 | e-6/K |
| Thermal conductivity | 16 - 16 | W/m.K |
| Specific heat | 500 - 500 | J/kg.K |
| Melting temperature | 1370 - 1400 | °C |
| Service temperature | 0 - 500 | °C |
| Density | 8000 - 8000 | kg/m3 |
| Resistivity | 0.7 - 0.7 | Ohm.mm2/m |
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