Tianjin Kaida Import&Export Co.,Ltd is one of the leading manufacturers and suppliers of erw round steel tube in China, featured by quality products and low price. Please rest assured to buy cheap erw round steel tube from our factory. Contact us for discount information.
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Product Name: |
erw round steel tube |
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Out Diameter: |
Round 0.3mm~650mm |
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Thickness: |
0.4mm~30mm |
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Length:: |
5.8m, 6m, 12m or as per customer's requirement |
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Pipe Ends: |
Plain, threaded, beveled. |
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Surface: |
Bare, oil, painting etc. |
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Packing: |
Bundle, or with all kinds of colors PVC or as your requirements |
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Standard: |
ASTM A53, API 5L, BS1387, EN10210, GB/T9711, GB/T3091, DIN 2458 |
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Grade: |
Grade A, B, X42-X70, S235JR, S355JR, ST37, ST52 |
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Application: |
Water, Gas, Stream or other liquid delivery, Construction, Warm house, Mechanical tubing. |
EFW VS ERW ,Whats the difference?
EFW (Electric Fusion Welding) and ERW (erw round steel tube) are two common welding methods. They are mainly used in making pipes. Their main differences lie in the welding method and scope of application.
EFW (Electric Fusion Welding):
Welding method: The base material is heated to a molten state by arc heating, and then filled with welding wire.
Scope of application: Usually used to manufacture pipes and fittings with larger diameters and thicker walls.
Applicable Materials: Suitable for various types of alloys and steels.
ERW (erw round steel tube):
Welding method: Use the heat generated by the resistance to heat the edge of the base material to a molten state, and then press it to form a weld.
Scope of application: Suitable for small-diameter, thin-walled pipes and suitable for mass production.
erw round steel tube Applicable materials: Mainly used for carbon steel and low alloy steel.
Common points:
All are suitable for pipe manufacturing and used to transport liquids and gases.
Efficient production to meet large-scale production needs.
Summary of differences:
Size and Thickness:
EFW is suitable for large-diameter, thick-walled pipe, while ERW is more suitable for small-diameter, thin-walled pipe.
Cost:
Due to differences in production processes and uses, ERW( erw round steel tube) is generally less expensive than EFW.
The method chosen usually depends on project needs and cost.
Quality Inspection
Packaging & Container Loading
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