GOST 4543 Seamless Steel Tube Hot Rolled Carbon Steel Alloy Seamless Steel Tubes For Boiler
Material
The GOST 4543 standard pertains to seamless steel tubes made from hot-rolled carbon steel alloy. These tubes are specifically designed for use in boilers, where high-temperature and pressure resistance are essential.
Specification
| Property | Specification |
| Standard | GOST 4543 |
| Type | Seamless |
| Material | Carbon Steel Alloy |
| Production Method | Hot Rolled |
Chemical Composition
The chemical composition of GOST 4543 seamless steel tubes is carefully controlled to ensure optimal performance in boiler applications. The composition typically includes elements that contribute to high-temperature strength and corrosion resistance.
| Element | Composition Range |
| Carbon (C) | 0.15% - 0.22% |
| Silicon (Si) | 0.20% - 0.50% |
| Manganese (Mn) | 0.30% - 0.60% |
| Sulfur (S) | ≤0.035% |
| Phosphorus (P) | ≤0.035% |
| Chromium (Cr) | ≤0.25% |
| Nickel (Ni) | ≤0.30% |
| Copper (Cu) | ≤0.30% |
Mechanical Properties
GOST 4543 seamless steel tubes are subjected to rigorous testing to ensure their mechanical strength, durability, and suitability for boiler applications. The following mechanical properties are typically observed:
| Property | Minimum Value |
| Yield Strength | ≥235 MPa |
| Tensile Strength | 380 - 520 MPa |
| Elongation | ≥25% |
| Hardness (HB) | ≤170 HB |
Steel Grade
The steel grade associated with GOST 4543 seamless steel tubes is determined by its mechanical properties, chemical composition, and intended use. Commonly used steel grades include 10, 20, 35, 45, and others.
Application
GOST 4543 seamless steel tubes find extensive application in the field of boilers. These tubes are crucial components in boilers that are subjected to high temperatures and pressures. They are used to construct various parts of boilers, such as water walls, superheaters, and reheaters. The seamless design ensures reliable performance and minimizes the risk of leaks or failures in the demanding boiler environment.
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Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
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