EN 
ES
PT
KO
DE
TR
FR
JA
Duplex stainless Steel tube, Seamless Duplex Stainless Steel Tube
Duplex stainless Steel tube, Seamless Duplex Stainless Steel Tube
Seamless Duplex Stainless Steel Tube
Duplex seamless stainless tube Pickled
Seamless stainless duplex tube annealed
Super Duplex Stainless Steel Pipe
ASTM A789 , A789M;
S31803, S32205, S32750, S31803, S32205, S32750;
- Description
- Specification
- Comments
Description:
Steam boiler is an important equipment for the production of chemical industry.
Applications:
Brief Introduction
Steam boiler is an important equipment for the production of chemical industry.
The steam is an indispensable source of heat source and power source in petrochemical enterprises. With the development of production technology, the exchange and recycling of heat energy is becoming more and more frequent, and the use of various types of boilers is increasing, so the automation of boiler operation is becoming more and more attention. Boiler operation automation not only reduces the labor intensity of workers, to ensure the safe and stable operation of equipment, more important is greatly improve the efficiency of fuel combustion, has good effect to save energy. In this case, we must understand the purpose and characteristics of the stainless boiler tube.
China's boilers are divided into living boilers, general industrial boilers, locomotive boilers and coal-fired power boilers.
Specification
Standard | ASME SA213, Gb5310-1995, Gb13296-2013 |
Steel Grade | Cr18Ni9(TP304H), 310H, 321H, 1Cr19Ni11Nb (TP347H), Supercritical boiler tube S30432 and S31042. |
Size Range | OD: 1/2" to 24" ( 12.7mm--609.6) Thickness: 10S to XXS (1mm--30mm) |
Certificate | PED, ASME, ISO9001:2008, ISO14001:2004 |
Description
Gb5310-1995 Standard Specification for high pressure boiler
Gb13296-2013 Standard Specification for boiler and heat exchanger
ASME SA213 Standard Specification for for boiler, superheater and heat exchanger
Chemical Composition:
Grade | Cr18Ni9 | 310H | 321H | 1Cr19Ni11Nb (TP347H) | TP310HCbN | S30432 |
C≤ | 0.04~0.10 | 0.04~0.10 | 0.04~0.10 | 0.04~0.10 | 0.04~0.10 | 0.07~0.13 |
Mn≤ | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 1.00 |
P≤ | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.040 |
S≤ | 0.030 | 0.030 | 0.030 | 0.03 | 0.03 | 0.010 |
Si≤ | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.30 |
Cr≤ | 18.0~20.0 | 24.0~26.0 | 17.0~19.0 | 17.0~19.0 | 24.0~26.0 | 17.0~19.0 |
Ni≤ | 8.0~11.0 | 19.0~22.0 | 9.0~12.0 | 9.0~13.0 | 19.0~22.0 | 7.5~10.5 |
NB | - | - | - | - | 0.15~0.35 | 0.30~0.60 |
Nb≤ | - | - | - | 8xC~1.10 | 0.20~0.60 | - |
Ti≤ | - | - | 4x(C+N)~0.70 | - | - | - |
others | - | - | - | - | - | Al(0.003~0.030) |
Trusted Customers or End Users of Duplex Stainless Steel Tube:
Standard | ASME SA213, Gb5310-1995, Gb13296-2013 |
Steel Grade | Cr18Ni9(TP304H), 310H, 321H, 1Cr19Ni11Nb (TP347H), Supercritical boiler tube S30432 and S31042. |
Size Range | OD: 1/2" to 24" ( 12.7mm--609.6) Thickness: 10S to XXS (1mm--30mm) |
Certificate | PED, ASME, ISO9001:2008, ISO14001:2004 |
Grade | Cr18Ni9 | 310H | 321H | 1Cr19Ni11Nb (TP347H) | TP310HCbN | S30432 |
C≤ | 0.04~0.10 | 0.04~0.10 | 0.04~0.10 | 0.04~0.10 | 0.04~0.10 | 0.07~0.13 |
Mn≤ | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 1.00 |
P≤ | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.040 |
S≤ | 0.030 | 0.030 | 0.030 | 0.03 | 0.03 | 0.010 |
Si≤ | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.30 |
Cr≤ | 18.0~20.0 | 24.0~26.0 | 17.0~19.0 | 17.0~19.0 | 24.0~26.0 | 17.0~19.0 |
Ni≤ | 8.0~11.0 | 19.0~22.0 | 9.0~12.0 | 9.0~13.0 | 19.0~22.0 | 7.5~10.5 |
NB | - | - | - | - | 0.15~0.35 | 0.30~0.60 |
Nb≤ | - | - | - | 8xC~1.10 | 0.20~0.60 | - |
Ti≤ | - | - | 4x(C+N)~0.70 | - | - | - |
others | - | - | - | - | - | Al(0.003~0.030) |
● Nice quality, Nice logistics. ___Malory （Czech Republic）
● Price is very cheap. ___Kerwin （Egypt）
● Good quality,but if the pipes are with lower price,it will be better. ___Jason （South Africa）
● Delivery is very timely. ___Pulitzer （Peru）