stainless steel pipe
Main products
Mechanical structure of stainless steel seamless pipe
Stainless steel seamless pipe conveying fluid
Boiler, heat exchanger with stainless steel seamless pipe
Food Hygiene stainless steel seamless pipe
Stainless steel seamless pipe for high pressure boiler
Stainless steel seamless pipe for petroleum cracking
Petrochemical, power with stainless steel
product specifications
OD :6mm-762mm,
Wall thickness :0.5-50mm,
Maximum length: as client’s request
Stainless steel Grade
Steel type |
Steel grade |
Standard |
Specification |
Heat Exchanger | TP304,TP304H,TP316, TP316L,TP321 |
ASTM A213,ASME SA213,JIS3463,DIN17458,EN10216-5 | OD: 12.7-159mm WT: 0.5-8mm |
Boiler Tube |
TP304H,TP310H,TP316H, TP321H,TP347H,TP347HFG |
ASTM A213,ASME SA213, EN10216-5, |
OD: 33.40-273.0mm |
Marine Tube |
P304H,TP304L,TP347H, |
ASTM A312, ASTM A269, |
OD: 6.0-273mm |
Instrumentation Tube |
TP304,TP304L,TP316, |
GB/T14976,EN10216-5, |
OD: 6-76.0mm |
General Tube |
TP304,TP304L,TP304H, |
EN10216-5, |
OD: 10.0-830.0mm |
Duplex Tube |
S31803; S32205;S31500; S32750 |
ASTM A789 |
OD: 12.0-219.0mm |
ASTM A790 |
OD: 10.0-273.0mm |
||
Nickel-base alloy |
N08825,N08904, |
ASME SB 163, ASTM B 163, |
OD: 16-273mm |
Note: Marine tubes could be verified by ABS,BV,CCS,DNV,GL,LR,KR |
ASTM A213 Permitted wall thickness tolerance
Permitted variations in wall thickness |
|||
Tolerance,% from Normal |
|||
NPS Designator |
|
Over |
Under |
1/8 to 21/2nincl.,all t/D ratios |
|
20 |
12.5 |
3 to 18 incl.,t/D up to 5% incl. |
|
22.5 |
12.5 |
3 to 18 incl.,t/D 〉5% |
|
15 |
12.5 |
20 and larger,welded,all t/D ratios |
|
17 |
12.5 |
20 and larger,seamless,t/D up to 5% incl. |
|
22.5 |
12.5 |
20 and larger, seamless,t/D〉5% |
|
15 |
12.5 |
Where: t= Nominal Wall Thickness D= Ordered outside diameter |