seamless steel pipe

seamless steel pipe
We are one of the leading stockiest of IBR certified alloy steel pipes and tubes
seamless steel pipe

1
T 1
243
15 Mo 3
16 Mo 5
TU 15 D 3
Cold bending
light bending: no heat treatment
heavy bending: annealing at 1250 necessary
Hot bending
Temperature zone to be avoided 1380/1650
advisable working temperature:
light bending: < 1380
heavy bending: 1750/2000(1)
Welding
perheating at 400 min. recommended for W.T.>= 20mm or 3/4 in. (light preheating possible for W.T. < 20 mm or 3/4 in.)
final heat treatment:
W.T.>= 20mm(3/4 in.) tempering at 1250
W.T. < 20mm(3/4 in.) tempering at 1250 recommended but not compul