Customized products

ERW pipe fittings

SPECIFICATIONS

ERW pipe fittings

Butt weld pipe fittings can be divided to seamless pipe fittings and weld pipe fittings. Here by we don’t say any information about seamless pipe fittings, we want to discuss something about weld pipe fittings. Weld pipe fittings also named of ERW pipe fittings, its parent metal is ERW steel pipes. The material types refer to carbon steel, alloy steel and stainless steel. At present Beijing Metleader Pipeline Technology Inc. mainly adopted carbon steel to produce ERW pipe fittings.
The following is the specification of ERW pipe fittings that Metleader supplying:
Dimension: 2 inch to 72 inch, below 2 inch only can produce seamless pipe fittings.
Wall thickness: SCH10, SCH20, SCH30, STD, SCH40, SCH60, XS for the size to 24 inch, SCH10, SCH20, STD, XS for the size to 48 inch, customized wall thickness also available.
Material: ASTM 234 WPB and A53 Gr.B.
ERW pipe fittings
The production processing of ERW pipe fittings is generally hot forming. For small size the raw material is ERW steel pipes the production processing is same as seamless steel pipe fittings. For big size commonly above 24 inch, the raw material is usually steel plate. The production processing as below just make the elbow as sample.
ERW pipe fittings
The first step: steel plate cutting.
The second step: hot forming in this step the plate would be put into the mold and heating in the furnace to form.
The third step: welding, make the blanks to weld together to get fittings.
The forth step: heat treatment to remove the stress.
The sixth step: shorting blasting to remove the rust.
The seventh step: bevel end, marking and packaging.
This is just the whole processing of ERW pipe fittings. Because the raw material steel plate cost is cheaper than seamless steel pipes, ERW pipe fittings are also accepted and popular for some customers. Actually ERW pipe fittings really can be applied for the pipelines that not request very high pressure.