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ISO Approved Manufacturer & Exporter of ASTM A335/A691 Grade P1 Seamless & EFW Pipes.

Alloy Steel P1 Seamless Pipes, A335 P1 Alloy Steel Seamless Pipe, ASTM A335 P1 High Pressure Steel Pipe, P1 Alloy Steel Boiler Steel Pipe Distributor, ASTM A691 Alloy Steel EFW Pipe, ASME SA335 Grade P1 Alloy Steel Pipe Supplier in Mumbai, India.

Neminox Steel & Engineering Co. is leading A335 P1 Alloy steel Seamless Pipe manufacturer & Exporter. We pride ourselves on being at the forefront of innovation in both product lines and after sales services. This is why we will constantly upgrade our products and services to meet market expectations and demands. We are reputed as an excellent quality A335 P1 Alloy steel Seamless Pipe & ASTM A335 Grade P1 EFW Pipes supplier in the industry.

Carbon, manganese, phosphorus, sulfur, silicon, and molybdenum are all included within one per cent of the total weight of the ASTM A335 P1 Pipe. This is low carbon steel with a carbon content ranging from 0.05 to 0.15 %. In addition, Neminox Steel & Engineering Co. is a leading provider of ASTM A335 P1 Pipe products in various shapes and sizes. There are many schedules available, ranging from sch20 to XXS. The pipe is available in sizes ranging from 1/8NB to 26NB. These pipes are seamless and may be utilized in various welding processes. Because it is low carbon steel, it can be welded at room temperature.


The mechanical parameters of A335 P1 and A335 P11 are almost identical, with a minimum yield strength of 205MPa and a minimum tensile strength of 415MPa. The pipes have bigger internal diameters. Sa335 Gr.p1 Pipe is available in several shapes and sizes, including round, square, rectangular, hydraulic, and other variations. Pipe ends are available in three different shapes: bevelled, plain, and threaded. Each of them is beneficial in a variety of application settings. There are many ranges of thicknesses available, ranging from 3mm to 12mm. Cold has been drawn, and cold rolled Asme Sa335 P1 Pipe is also available for production. Pipes are available in various sizes, including single random, double random, and cut to length.
Heat treatment of the A335 P1 alloy steel pipe may also be used to harden the steel even more. Low carbon steel has higher welding capabilities and is used in applications such as petroleum, petrochemical, oil and gas, and other fluid transmission lines, among other things. Please do not hesitate to contact us for more information about A335 P1 Alloy Steel Seamless Pipe goods and pricing. To increase physical quality and provide unique properties like corrosion resistance and heat resistance, ASME SA335 P1 Pipe is alloyed with various elements. The SA335 P1 Pipe is alloyed with various elements, such as copper and zinc, to increase physical quality and provide unique features like corrosion resistance and heat resistance. When combined with other materials such as aluminium, nickel, or copper, ASTM A335 P1 Pipe may meet the standards of a project and be more cost-effective. As an essential ingredient of ASTM A335 grade P1 pipes and ASTM A335 Alloy Steel P1 EFW pipe, carbon (C) is an essential constituent. Strength, hardness, and resistance to wear and abrasion are all improved due to this process. It harms the ductility, toughness, and machinability of AISI P1 ERW pipes.

Global Supplier of High Quality Alloy Steel P1 Seamless Pipe, Alloy Steel UNS K11522 Pipes, Seamless Ferritic Alloy-Steel P1 Pipe, Alloy Steel Pipe P1, Alloy Steel ASTM A335 Grade P1 Seamless Pipe Manufacturer, P1 High Pressure Steel Pipe Exporter in India.

Specifications of Alloy Steel Pipes & Tubes

Specification ASTM/ASME A335 / ASTM/ASME A691
Size 1/2" NB - 24" NB
Thickness SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Grade A335 GR P1, P5, P9, P11, P12, P22, P23, P91.
A691 GR 1CR 11, 4CR 21, 4CR
Type Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form Round, Square, Rectangular, Hydraulic Etc
Length Single Random, Double Random & Cut Length.
End Plain End, Beveled End, Treaded

A335 gr P1 Pipe (ASME S/A335, Chrome-Moly) is a seamless ferritic alloy-steel pipe designed for high-temperature applications. Stainless steel P1 pipe and P1 seamless pipe are suited for high-temperature applications such as bending, flanging (stoning), and other forming operations used in fusion welding operations in the power sector petrochemical facilities. In addition to ASTM A335 P1 chrome-moly pipe, ASME SA 335 Alloy Steel P1 Seamless Pipe is also known as ASTM A335 P1 chrome-moly pipe due to the chemical composition of Molybdenum (Mo) and Chromium (Cr) (Cr). Because of the presence of molybdenum, the strength of the P1 Square Pipe is maintained, as is the elastic limit, wear resistance, impact characteristics, and hardenability. The high temperature creeps strength of ASTM A335 Grade P1 Alloy Steel Seamless Pipe may be improved by adding molybdenum, the most influential single addition. Hot Rolled ASTM A335 Alloy Steel P1 Seamless Pipe and High-Pressure P1 Boiler Pipe are available in lengths up to 22.5 meters in the hot rolled state. Cold-drawn ASTM A335 P1 Alloy Steel Pipe & boiler pipe are available in lengths up to 25m with tight tolerances, in standard and non-standard specifications, and inside-diameter control, depending on the application. Including P1 combustion chamber tubes, P1 header pipes, and P1 line pipes for main steam and reheater circuits, we offer a comprehensive range of P1 material tubular products in a variety of sizes ranging from the smallest dimension up to sizeable heavy wall pipes in all required steel grades, including stainless steel.

Alloy Steel Seamless Pipe & Tubes

Alloy Steel
Standards Seamless Pipe
ASTM A 335

Chemistry Composition of Alloy Steel Pipes & Tubes

C, %

Mn, %

P, %

S, %

Si, %

Cr, %

Mo, %



0.025 max

0.025 max




Mechanical properties of Alloy-Steel P1 Pipe & Tube

Tensile Strength, MPa

Yield Strength, MPa

Elongation, %

415 min

205 min

30 min

Alloy Steel Pipes & Tubes




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
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%

Type of SA335 Alloy Steel P1 Seamless Pipes

ERW pipe
  • ERW pipe
  • Welded Pipe
  • Welded Pipe
  • Seamless Pipe
  • Seamless Pipe

  • ASTM A335 / SA335 Alloy Steel P1 Seamless Pipes other Available Types

    Alloy Steel P1 Pipes Alloy Steel P1 Seamless Pipe
    ASTM A335 Alloy Steel P1 Pipes Chrome Moly Grade P1 Seamless Pipes
    ASTM A691 Alloy Steel EFW Pipes ASME SA335 Chrome Moly P1 Pipes
    Grade P1 Chrome Moly Seamless Pipes Alloy Steel P1 Seamless Pipes Supplier
    AS Grade P1 Seamless Pipe ASTM A691 Alloy Steel Pipes
    Alloy Steel UNS K11522 Pipes Alloy Steel Gr. P1 High Pressure Steel Pipe
    ASTM A335 Grade P1 Pipe AS P1 Seamless Pipes Stockiest
    Chrome Moly P1 Pipe Exporter ASME SA335 Alloy Steel P1 Pipe Dealer

    Neminox Steel & Engineering Co. offers the wide range of Industrial metal and steel products like pipes, tubes, sheets, plates, rods, bars, weld, flanges, forges & pipe fittings in various materials. Since two decades, we have led as a reliable exporter, supplier, trader and stockist of industrial steels in the world-wide market. We can also provide custom required as per your cut & full length, sizes, hardness and grades at the most competitive prices. Neminox Steel & Engineering Co. is ISO 9001:2015 approved manufacturer in India. We export the standard quality with swift delivery services to countries like USA, Indonesia, Thailand, Mexico, Vietnam, Philippines, Malaysia, Algeria, UK, UAE, Saudi Arabia, Africa, European and Middle East Countries. Just contact us or put your requirement in our Enquiry Form, will get back to you quickly.

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