Delivery Time:3-5 days
Certification:CE,FCC,MSDS

Straight Welded ERW Steel Pipe A53 GRB Q235 Q195 For Fluid Transport And Construction

Specifications:

ERW express resistance welding, resistance welding with high production efficiency, low cost, saving materials, easy automation and so on, so it is widely used in aviation, aerospace, energy, electronics, automobile, light industry and other industrial sectors, is one of the important welding process.

Technical Parameter for ERW Steel Pipe	Tensile Strength	≥410(42)
Yield Strength 0.2%	≥245(25)
Elongation %	≥25
XT	OK
UT	OK
Water Pressure	OK
IMP	OK
Flat Test	OK
Surface	Painting Marking
Ends	Beveled and Caps
Packing	In bundles	With steel strip
Dimension	OD Size	219-820 mm
Thickness	6-25mm
Length	6-20m
Certificate	API 5L / ISO

 Description:

ERW steel pipe is straight weld pipe, electric resistance welding, the abbreviation for ERW for transporting oil and natural gas vapor liquid objects, can meet the requirements of high and low pressure, the transport in the world with pipe sector accounted for a pivotal position.

ERW tube is a \"high frequency resistance welded steel pipe\", and the common welded pipe welding process is not the same, the welding seam is made from the steel body of the base metal, the mechanical strength is better than the general welded pipe 

standard thickness tolerance
tolerance class	thickness tolerance
S/D
0.1< S/D	0.05< S/D≤0.1	0.025< S/D≤0.05	S/D≤0.025
S1	±15%,min±0.6mm
S2	A	±12.5%,min±0.4mm
B	+ plus tolerance depend on weight request - 12.5%
S3	A	±10%,min±0.2mm
B	±10%	±12.5%,min±0.4mm	±15%
C	+plus tolerance depend on weight request - 10%
S4	A	±7.5%,min±0.15mm
B	±7.5%	±10%	±12.5%	±15%
S5	±5%,min±0.10mm
non-standard thickness tolerance
tolerance class	thickness tolerance,%
NS1	+15 -12.5
NS2	+15 -10
NS3