ERW Welded Square Steel Pipes With X42/X52/X60/X70 OD: 21.3*21.3-508*508

OD 

21.3×21.3-508×508

WT

2.11-59.54   (sch10s-XXS)

Length

6-12m (Fixed or Random)

Surface Treatment

Light varnish, black oil

Standard

API,ASTM ANSI,ASME,GB,DIN,BS 

Grade

10#,20#,45#,A53,A106,A312 X42 X46 X52 X56 X60 X70

Surface treatment

black rust-proof oil, transparent oil, hot galvanizing, 3PE,epoxy coating

Ends

plain or threaded with socket or beveled with plastic caps

Applications range

Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc

Tolerance

OD:±1%   WT:+15%/-12%     Length:±2%

MOQ

5 Ton

Certificate

API, ISO 9001:2000

Special design available as requirement