Astm A335 P91 P22 Alloy Seamless Steel Pipe 1/2"-36" Sch Xxs
Astm A335 P91 P22 1/2"-36" Sch XxsAlloy Steel Seamless Pipe Hot Rolled Steel Pipe
Introduction
Alloy seamless steel pipe is a kind of seamless steel pipe, its performance is much higher than that of general seamless steel pipe, because this kind of steel pipe contains more Cr, its high temperature, low temperature and corrosion resistance performance is not compared with other seamless steel pipe, so alloy pipe is widely used in petroleum, chemical industry, electric power, boiler and other industries.
Alloy seamless steel pipe contains elements such as silicon, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, aluminum, copper, boron, rare earth, etc.
Alloy seamless steel pipe (Seamless Steel Tube) with hollow section, no joints around the strip steel. The steel pipe has a hollow section and is widely used as a pipeline for conveying fluid, such as oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, alloy seamless steel pipe is light weight when bending and torsion strength is the same. It is an economic section steel, which is widely used in the manufacture of structural parts and mechanical parts, such as oil conveying, stair handrails, bicycle frames and steel scaffolding used in construction. Making ring parts with alloy seamless steel pipe can improve material utilization, simplify manufacturing process, and save material and processing time, such as rolling bearing ring, Jack sleeve and so on. Steel pipe has been widely used to manufacture. Alloy seamless steel pipe or all kinds of conventional weapons indispensable materials, gun barrel, barrel and so on must be made of steel pipe. In addition, when the ring section is subjected to internal or external radial pressure, the force is more uniform, so most alloy seamless steel tubes are circular tubes
Production process
Hot rolling (extruded seamless steel pipe): pipe billet → heating → perforation → three-roll oblique rolling, continuous rolling or extrusion → pipe → diameter (or diameter reduction) cooling pipe straightening → hydraulic test (or flaw detection) marking → storage.
cold drawn (rolled) seamless steel tube billet → heating → perforation → head → annealing → pickling → oiling (copper plating), multi-pass cold drawing (cold rolling)→ billet tube → heat treatment, straightening → water pressure test (flaw detection), marking → storage
Chemical composition(%):
| Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
| P11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| P22 | 0.05-0.16 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | 0.87-1.13 |
| P5 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 4.00-6.00 | 0.45-0.65 |
| P9 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
| P91 | 0.08-0.12 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | 0.02-0.50 | 8.00-9.50 | 0.85-1.05 |
| P92 | 0.07-0.13 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | ≤0.50 | 8.50-9.50 | 0.30-0.60 |
Mechanical properties:
| Grade | Tensile strength | Yield strength | Elongation |
| P11, P22, P5, P9 | ≥415 | ≥205 | ≥30/20 |
| P91 | ≥585 | ≥415 | ≥20 |
| P92 | ≥620 | ≥440 | ≥20 |
tandard |
Standard Number |
Steel Grade |
Seamless steel tubes for high pressure boiler |
GB/T 5310 |
20G,25MnG,15MoG,15CrMoG,12Cr1MoVG,12Cr2MoG,15Ni1MnMoNbCu,10Cr9Mo1VNbN |
High temperature seamless carbon steel nominal pipe |
ASME SA-106/SA-106M |
B,C |
Seamless carbon steel boiler tubes for high pressure service |
ASME SA-192/SA-192M |
A192 |
Seamless carbon molybdenum alloy steel tubes for boiler and Superheater |
ASME SA-209/SA-209M |
T1,T1a,T1b |
Seamless medium carbon tubes for boilers and superheaters |
ASME SA-210/SA-210M |
A-1,C |
Seamless Ferritic and austenitic alloy tubes for boilers, superheaters and heat exchangers |
ASME SA-213/SA-213M |
T2,T5,T11,T12,T22,T91 |
Seamless Ferritic Alloy Steel nominal pipe for high temperature service |
ASME SA-335/SA-335M |
P2,P5,P11,P12,P22,P36,P9,P91,P92 |
Seamless steel pipe made of heat resistant steel |
DIN 17175 |
St35.8,St45.8,15Mo3,13CrMo44,10CrMo91 |
Seamless steel pipe |
EN10216 |
P195GH,P235GH,P265GH,13CrMo4-5,10CrMo9-10,15NiCuMoNb5-6-4,X10CrMoVNb9-1 |
Boiler tubes shall comply with the above relevant standards. It is used for heating surface, economizer, header, superheater, reheater and petrochemical industry pipe of high pressure boiler. |
||
FAQ
Q. How long can make delivery?
A:For stock products, will make shipments in 5- 7 days after receiving deposit or receiving L/C; for products need new production for common materials, usually make shipments in 15-20 days; for products need new production for special and rare materials, usually need 30-40 days to make shipment.
Q:Can you provide the samples?
A:Samples can be provided with samples charge and courier fee by the buyer's side.
Q:Are the products in stock?
A:Yes.Most of our products are in stock.So we can prompt delivery.
Q:Can you accept customize?
A:Yes.It can be customized as per the customers' request.
Q:What about the quality?
A:According to the standard for production.And we can also accept the third-party inspection
and quarantine.
About the After-Sale Service
a.We are glad that customers can give us some suggestions for price and products.
b.If you have any questions,pls feel free to contact us by email or phone.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.