ASME SA335 Ferritic Alloy-Steel Pipe P11 Seamless Steel Alloy Boiler Pipe Cold Drawn

 
Alloy Steel Seamless Pipe's working pressure capability is around 20% higher than a welded pipe, similar to most alloys. As a result, the use of a seamless pipe is justified in applications that require a higher working pressure. The cost is substantially more than a welded pipe, despite the fact that it is stronger. Alloy Steel Seamless Pipes & Tubes are utilised in applications that demand moderate corrosion resistance, as well as good durability and a low cost.
 
Alloy Steel Seamless Tube Application
- Offshore Oil Drilling
- Power Generation
- Petrochemicals
- Gas Processing
- Specialty Chemicals
- Pharmaceuticals
- Pharmaceutical Equipment
- Chemical Equipment
- Sea Water Equipment
- Heat Exchangers
- Condensers
- Pulp and Paper Industry

Specification

Chemical Composition

 
Mechanical Properties

 
Outside Diameter & Tolerance

 
Wall Thickness & Tolerance

Standard

ASTM A335-for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
ASTM A519-for Seamless Carbon and Alloy Steel Mechanical Tubing
ASTM A213-for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Super heater, and Heat-Exchange Tubes
ASTM ASME (S)A-335/(S)A-335M Grade and Chemical Composition
 

Note:
A335 P91 other chemical composition are : V 0.18~0.25; N 0.030~0.070; Ni ≤ 0.40; Al ≤ 0.04 ; Nb 0.06~0.10
A335 P92 other chemical composition are : V 0.15~0.25; N 0.030~0.070; Ni ≤ 0.40; Al ≤ 0.04 ; Nb 0.04~0.09; W 1.5~2.00 ; B 0.001~0.006

Process

Pipe Process of ASME SA335 P91 Steel Tube / ASTM A335 P91 Alloy Steel Seamless Tubes:
Round Billet → Material Inspection → Grinding → Cut to Length → Heating → Piercing → Bite Mandrel → Hot Rolled → Get Rid of Mandrel → Heat Treatment → Size Reducing → Cooling → Straightening → Semi Manufactured Product → Corp End Cutting off → UT/ET TEST or Hydrostatic Test → Marking → Packing → Warehousing
 

 

 

Q1: How long is the warranty period?
We provide 18 months warranty for all spare parts(exclude fragile parts).
 
Q2: How can we guarantee quality?
1 All machines are in strict accordance with the ISO quality and CE system requirements.
2 Each procedure is crafted by professional Skilled labour, followed by particular QC
3 All information of our products can be checked in efficient management system.
 
Q3: What can you buy from us?
Boiler Economizer, Boiler Fin tube, Boiler Air preheater, Boiler superheater, Boiler membrane wall,Boiler manifold headers and other pressure spare parts.
 
Q4: What kind of service do you provide?
Before sales:Provide productinformations, market research forecasting, product customization,product processing,consultation and other services for your convenience.
 
Q5: Are you a factory or trading company, where are you located?
We are a factory in wuxi ,  just 130km(2 hours by car) away from Shanghai Airport.
 
We offer pickup service at Shanghai or wuxi  for your visit.