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Alloy Steel P1 seamless pipes are a specific kind of pipe that are utilized in many different industrial applications because of their exceptional strength, endurance, and heat-resistant qualities. These pipes are composed of a particular alloy steel grade, known as P1, which is well-known for its resilience to harsh environments. Typically, P1 alloy steel is composed of silicon, manganese, carbon, and other components to improve its mechanical qualities. High tensile strength, excellent ductility, and resistance to thermal expansion are provided by this composition. To guarantee that the pipe can withstand high pressure settings and withstand degradation from mechanical and thermal stresses, the alloying components are meticulously matched.
The fact that these pipes are "seamless" indicates that there are no joins or welds made throughout their production, thus enhancing their dependability and strength. Heating an alloy steel billet and shaping it into the shape of a pipe using extrusion or rotary piercing are the two steps in the manufacturing process. Because of the smooth internal surface and consistent thickness ensured by this process, the pipes are perfect for high-pressure applications.
Petrochemical processing, power generation, and the oil and gas industry are just a few of the industries that employ seamless alloy steel P1 pipes extensively. They are especially valuable in applications that require high strength and corrosion and heat resistance. These pipes are used in the building of high-temperature equipment, pressure vessels, and pipelines.
Pipe Specification : ASTM A335, A691 / ASME SA335, SA691
Size : 1/2" NB To 36" NB
Outside Diameter (OD) : 19.05mm – 114.3mm
Wall Thickness : 2.0mm – 14 mm
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type : Seamless / EFW / Cold Drawn / Annealed & Pickled / Hot Finished / Extruded / Structural
Form : Round Pipes
Length : Single Random, Double Random & Cut Length
End : Plain End, Beveled End, Threaded
End Protection : Plastic Caps
Finish : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Origin : Indian Origin, European Origin, Japanese Origin
Testing and Documents : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
Packing : Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests
A Wide Range of ASTM A335 P1 Alloy Steel Pipes at Best Price.
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GRADE | UNS | TRADE NAME |
P1 | K11522 | - |
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 |
Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
415 min | 205 min | 30 min |
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 | ||
Cold Drawn | Outside Diameter, mm | Tolerance, mm | |
OD<25.4 | ±0.10 | ||
25.4≤OD≤38.1 | ±0.15 | ||
38.1<OD<50.8 | ±0.20 | ||
50.8≤OD<63.5 | ±0.25 | ||
63.5≤OD<76.2 | ±0.30 | ||
76.2≤OD≤101.6 | ±0.38 | ||
101.6<OD≤190.5 | +0.38/-0.64 | ||
190.5<OD≤228.6 | +0.38/-1.14 | ||
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% |
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 | ||
Cold Drawn | Outside Diameter, mm | Tolerance, % | |
OD≤38.1 | +20/-0 | ||
OD>38.1 | +22/-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 |
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