TORICH GB/T9808 ZT380 Precision Steel Tube Seamless Steel Tubes

Basic Information
Place of Origin: CHINA
Brand Name: TORICH
Certification: ISO9001 ISO14001
Model Number: GB/T9808
Minimum Order Quantity: 3ton
Price: 800-1200USD/TON
Packaging Details: In plywood case,In wooden box.
Delivery Time: 30-45work days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 30000tons/year
Detail Information
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
High Light:

precision steel pipe


precision seamless pipe

Product Description

GB/T9808 ZT380 Good OD and ID tolerance Seamless Steel Tubes



OD:33-340mm WT:2-28mm L:4000mm-12500mm


Steel Grade:



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.



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

±7%S or ±0.15



TORICH GB/T9808 ZT380 Precision Steel Tube Seamless Steel Tubes 0

Contact Details

Phone Number : +8613736164628

WhatsApp : +8613736164628