Welded Casing 3 1/2'' 9.3PPF

Supply Capability:
2000
Lead time:
Stock
Trade Terms:
Ex UAE warehouse
Payment Terms :
TT in Advance
Certification :
Origin :
CN
Ref Price
AED 268 /Acres
100 (Min. Order Quantity)
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The manufacturing process for welded casing is quite different from that of seamless casing. The process also starts with a heated steel slab that is rectangular in shape rather than cylindrical. One process uses a relatively small slab that is rolled into a flat plate and trimmed to size for a single joint of pipe. It is then rolled into the shape of a tube and the two edges are electrically flash welded together to form a single tube. Another process uses electric resistance welding (ERW) as a continuous process on a long ribbon of steel from a large coil. The first stage in this process is a milling line in the steel mill:

• A large heated slab is rolled into a long flat plate or ribbon of uniform thickness.

The manufacturing process for welded casing is quite different from that of seamless casing. The process also starts with a heated steel slab that is rectangular in shape rather than cylindrical. One process uses a relatively small slab that is rolled into a flat plate and trimmed to size for a single joint of pipe. It is then rolled into the shape of a tube and the two edges are electrically flash welded together to form a single tube. Another process uses electric resistance welding (ERW) as a continuous process on a long ribbon of steel from a large coil. The first stage in this process is a milling line in the steel mill:

• A large heated slab is rolled into a long flat plate or ribbon of uniform thickness.

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