37Mn Seamless Steel Tube 30-426mm Diameter for High Pressure Gas Cylinders
High Pressure Gas Cylinder Tube 37Mn Large Diameter Cold Drawn Seamless Steel Tube
Material:
The 37Mn steel is a low-carbon alloy steel that offers high strength, toughness, and wear resistance. This steel is primarily used for high-pressure applications due to its excellent tensile and yield strengths, making it ideal for gas cylinders and similar industries.
Specifications:
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Material: 37Mn Alloy Steel
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Type: Cold Drawn Seamless Steel Tube
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Diameter: Large Diameter
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Wall Thickness: Customizable based on requirements
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Length: Customizable per order
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Surface Finish: Cold drawn (smooth surface)
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Applications: High-pressure gas cylinders, industrial machinery, and other heavy-duty applications
Chemical Composition (Typical):
| Element | % Content |
|---|---|
| Carbon (C) | 0.32 - 0.38 |
| Manganese (Mn) | 1.10 - 1.40 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | 0.15 - 0.35 |
| Iron (Fe) | Balance |
Mechanical Properties:
| Property | Value |
|---|---|
| Yield Strength | ≥ 450 MPa |
| Tensile Strength | ≥ 550 MPa |
| Elongation | ≥ 20% |
| Hardness | 160-210 HB |
Main Features:
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High Pressure Resistance: Ideal for manufacturing high-pressure gas cylinders.
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Seamless Construction: No welding seams, reducing potential failure points.
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Cold Drawn Process: Ensures smoother surface, better dimensional tolerance, and higher strength.
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Large Diameter: Capable of withstanding heavy pressure, suitable for various industrial applications.
Standards:
This tube is manufactured in accordance with international standards, such as:
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ASTM A519 – Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
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DIN 2391 – Seamless Precision Steel Tubes
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GB/T 3639 – Seamless Steel Tubes for Fluid Transport
Applications:
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High-Pressure Gas Cylinders: Used in the storage of gases like oxygen, nitrogen, and carbon dioxide.
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Industrial Machinery: For use in heavy-duty equipment and automotive sectors.
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Petrochemical Industry: Transporting fluids under high pressure.


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.
If you have another question, pls feel free to contact with me.
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