Description
1 Production technology:
Hot-expanding
Advantage:
this kind of steel pipes are with low density but very strong
contractility. The diameter is expanded by helical rolling or
drawing. The precision rolling technology can thicken the pipe in a
short time. Non-standard or special sizes of seamless steel pipes
can be made through hot expanding technology.
2 Standards:
GB/T***2/***3/***7/***0, ASME B*6 *0, ASTM A**6/A*3, API 5L/5CT,
DIN
3 Specification
range:
OD: 8''**6'' (
**9mm***4mm)
WT:
SCH**-SCHXXS
4 Materials: *0#, *0#,*5#,*6Mn,
GRB, Q**5B, X****6, ST*4, ST*2 etc.
5 Testing: Eddy current,
Hydrostatic, Ultrasonic, Intergranular corrosion etc.
6 Packing: in bundles with steel
strips, seaworthy packing as per customer's
requirements
7 Application: Hot-rolled
seamless steel pipes are widely used in fluid transmission such as
petroleum, natrural gas, coal gas, waster as well as shipbuilding,
large constructions, machinery, chemical fertilizer equipment,
electricity industry etc.
8Surface: painting in
black our as customers ask. Plastic cap in both side.
