ALLOY SEAMLESS PIPE ALLOY TUBE HIGH PRESSURE STEEL PIPE
Description
OD:6-720MM
WT:0.5-120MM
Length:3-16M
Application:Petroleum, Chemical Engineering, Electricity, Boiler
Standard:ASTM A335/A335M, ASTM A213/213M, DIN17175-79, JIS3467-88,GB5310-95
Material:P5,T5,P11,P12,STFA22, P22, T91, T9,WB36
Alloy pipe is a kind of seamless steel pipe, its performance is much higher than that of general seamless steel pipe, because this type of steel pipe contains more Cr, its high temperature resistance, low temperature resistance, corrosion resistance performance is much better than other Steel pipe , so the alloy pipe is widely used in petroleum, aerospace, chemical, electric power, boiler, military and other industries.
Alloy tube refers to the use of alloy extrusion processing into a metal tubular material, which can have one or more closed through holes, wall thickness and uniform cross section, used in automobiles, ships, aerospace, aviation, electrical, agricultural, electro mechanical, home and other industries.
Specification
Chemical Composition
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % |
| 0.05-0.15 | 0.30-0.60 | 0.025 max | 0.025 max | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
Mechanical Properties
| Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
| 415 min | 205 min | 30 min |
Outside Diameter & Tolerance
|
ASTM A450
|
Hot rolled | Outside Diameter, mm | Tolerance, mm |
| OD≤101.6 | +0.4/-0.8 | ||
| 101.6＜OD≤190.5 | +0.4/-1.2 | ||
| 190.5＜OD≤228.6 | +0.4/-1.6 | ||
| ASTM A530 & ASTM A335 | NPS | Outside Diameter, inch | Tolerance, mm |
| 1/8≤OD≤1-1/2 | ±0.40 | ||
| 1-1/2＜OD≤4 | ±0.79 | ||
| 4＜OD≤8 | +1.59/-0.79 | ||
| 8＜OD≤12 | +2.38/-0.79 | ||
| OD>12 | ±1% |
Wall thickness & Tolerance
| ASTM A450 | Hot rolled | Outside Diameter, mm | Tolerance, % |
| OD≤101.6, WT≤2.4 | +40/-0 | ||
| OD≤101.6, 2.4＜WT≤3.8 | +35/-0 | ||
| OD≤101.6, 3.8＜WT≤4.6 | +33/-0 | ||
| OD≤101.6, WT>4.6 | +28/-0 | ||
| OD>101.6, 2.4＜WT≤3.8 | +35/-0 | ||
| OD>101.6, 3.8＜WT≤4.6 | +33/-0 | ||
| OD>101.6, WT>4.6 | +28/-0 | ||
| ASTM A530 | NPS | Outside Diameter, inch | Tolerance, % |
| 1/8≤OD≤2-1/2 | +20.0/-12.5 | ||
| 3≤OD≤18, WT/OD≤5% | +22.5/-12.5 | ||
| 3≤OD≤18, WT/OD>5% | +15.0/-12.5 | ||
| OD≥20, WT/OD≤5% | +22.5/-12.5 | ||
| OD≥20, WT/OD>5% | +15.0/-12.5 |
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: (S)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
(S)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
Painting&Coating
Black coating , oil/varnish ,FBE,2PE,3PE, galvanized etc Packaging Detail: Packing in bundles or for the client’s requirement
Packing&Loading
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