TORICH GB/T9808 ZT380 Precision Steel Tube Seamless Steel Tubes
Basic Properties
Place of Origin:
CHINA
Brand Name:
TORICH
Certification:
ISO9001 ISO14001
Model Number:
GB/T9808
Trading Properties
Minimum Order Quantity:
3ton
Price:
800-1200USD/TON
Payment Terms:
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability:
30000tons/year
Product Summary
GB/T9808 ZT380 Good OD and ID tolerance Seamless Steel Tubes Size: OD:33-340mm WT:2-28mm L:4000mm-12500mm Steel Grade: ZT380,ZT490,ZT520,ZT540,ZT590,ZT640,ZT740 The Production method: Hot rolling(extrusion) or cold drawing(rolling) seamless method. Delivery State: Hot rolling(extrusion)steel tubes ...
Product Details
Highlight:
precision steel pipe
,precision seamless pipe
Product Name:
GB/T9808 ZT380 Good OD And ID Tolerance Seamless Steel Tubes
Keyword:
Seamless Steel Tubes
Type:
Seamless Steel Tube
Surface:
Oiled
Material:
30CrMo ZT380
Usage:
Oil Pipe
Shape:
Round
Length:
2-12m
OD:
30-340mm
WT:
2-30mm
Product Description
GB/T9808 ZT380 Good OD and ID tolerance Seamless Steel Tubes
Size:
OD:33-340mm WT:2-28mm L:4000mm-12500mm
Steel Grade:
ZT380,ZT490,ZT520,ZT540,ZT590,ZT640,ZT740
The Production method:
Hot rolling(extrusion) or cold drawing(rolling) seamless method.
Delivery State:
Hot rolling(extrusion)steel tubes should be delivered with hot rolling condition or hot finished.Cold drawn(rolling) steel tubes should be delivered with hot finished.
Surface quality
There is no visual visible cracks,rolling, folding,scarring and abscission layer in the internal and external surfaces of the steel pipe.
Test:
Tensile tast
Ultrasonic inspection
Eddy current inspection
Magnetic flux leakage inspection
Tolerance of Outer Diameter and Wall Thickness
| Standard | Production Method | Tube Size | Tolerance | |
| GB/T 9808-2008 | Hot rolled | OD | (+1.0%D) or +0.65 (-0.5%D) -0.35 | |
| WT | ≤10 | (+15%S)or +0.45 (-10%S) -0.35 | ||
| >10 | (+12.5%S, -10%S) | |||
| Cold Drawn(rolled) | OD | ±0.50%D or ±0.20 | ||
| WT | ±8%S or ±0.15 | |||
| Q(N)/ T118-2010 | Cold Drawn | OD | OD | ±0.40%D or ±0.20 |
| WT | WT | ±7%S or ±0.15 | ||
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