SA335 P22 Alloy Steel Pipe Manufacturers & Suppliers in Namibia

  • UNS K21590 Grade P22/T22 Pipes – Manufacturer & Exporter of A335 Gr. P22 Alloy Steel Pipes or Chrome Moly Pipes to Namibia in Size Range of 1″ to 48″. We Export P22 Alloy Steel Pipes to Our Customers in Windhoek, Rundu, Walvis Bay, Oshakati, Swakopmund, Katima Mulilo, Grootfontein and Rehoboth among others. 

    • A335 Gr. P22 Alloy Steel Pipes in Size 1″ to 48″ in thickness Upto 40mm.

    • A234 WP22 Buttweld Fittings, Elbow, Tee, Reducer, U Bends are Available in Size Range of 1″ to 48″.

    • A182 F22 Forged Flanges are Available in Size Range of 1″ to 48″, with nut, bolts and gaskets.

    • Prices for P22 alloy steel pipes ranges from US$2.6/Kg to US$4.5/Kg depending on the diameter, thickness, length and quantity of pipes.

  • 100% Quality Guaranteed, with Competitive Prices – PED Certified, ISO Certified, Major TPI and Approvals, OHSAS Certified.

  • P22 Alloy Steel Pipe Factory, P22 Alloy Steel Pipe Suppliers in Namibia, P22 Chrome Moly Pipe, P22 Alloy Steel Pipe Mill, P22 Alloy Steel Pipe Manufacturers, Large Diameter P22 Alloy Steel Pipe, P22 Boiler Tubes, P22 Heat Exchanger Pipes, P22 High Wall Thickness Pipes, P22 Heavy Wall Thickness Pipes, P22 Alloy Steel Pipes for Refineries, P22 Alloy Pipes for Oil & Gas Applications, P22 Steel Pipe, Super Heater A335 Gr. P22 Pipes, UNS K21590 Pipes, Grade P22/T22 Pipes

  • We are a specialized manufacturer, stockist and supplier of A335 P22 alloy steel pipes in Namibia. P22 alloy steel pipes contain min. 1.9% chromium and 0.87% molybdenum, and offer minimum tensile strength of 415 MPa and yield strength of 205 MPa. The available data suggests that P22 grade alloy pipes have excellent fabrication properties and adequate long term strength, making it a suitable choice for use in high temperature erosive power generation applications.

  • A335 P22 alloy steel pipes are mainly used in power generation industry for manufacturing boilers, pipeline and heat exchangers, and are generally suitable for bending, flanging, and similar forming operations, and for fusion welding. 

  • With a collective experience of over 30 years, we have emerged as one of the largest just in time exporter of P22 alloy steel pipes to Namibia. ASTM A335 P22 alloy steel pipes are used in conjunction with ASTM A234 WP22 buttweld fittings, A234 WP22 elbow, A234 WP22 Tee, A234 WP22 reducer, A234 WP22 180 Degree U bends, and A182 F22 forged fittings and flanges. All these materials have similar chemical (Chrome, Moly, Nickel) and mechanical properties and can be easily welded and installed on site.

  • We are devoted to provide the best solutions for our customers in Windhoek, Rundu, Walvis Bay, Oshakati, Swakopmund, Katima Mulilo, Grootfontein and Rehoboth, the biggest industrial and commercial cities of Namibia. We have manufacturing set up, sales and export offices in both India and China to meet the immediate and long term alloy steel pipe requirements across Namibia. We aim at offering high quality but competitive price chrome moly P22 pipes for our global customers.

Professional Manufacturer of Alloy Steel SA335 P22 Pipes and Tubes, P22 U-Tubes, ASTM A335 Gr. P22 Steel Pipes and Tubes

  • Welded Alloy Steel Pipe, Size Range: 1/8″ to 48″
  • Seamless Alloy Steel Pipes, Size Range: 1/8″ to 48″
  • Thickness – SCH 20, 30, 40, STD, XH, 80, 100, 120, 140, 160, XXH, WT is 2.11mm – 40mm
  • Additional Services: Fusion Bond Epoxy, Galvanizing, 3LPE, Tar Epoxy
Alloy Steel ASTM A335 P5, P9, P11, P22, P91 Pipe Manufacturers, Suppliers, Exporters

Are You Looking for a P22 Alloy Steel Pipes Supplier in Namibia?

We are one of the largest P22 alloy steel pipe factory, supplier and exporter in Namibia. We welcome you to contact us and send us your requirements. Metline specialises in export of alloy steel P22 pipes to Namibia. We can offer CIF, Ex-Works, DDP delivery terms.

Product P22 Alloy Steel Seamless Pipes
Specification ASTM A335, ASME SA335
Grade P22
Size 2″ to 48″
Thickness 2.11 mm to 160 mm
Type Seamless, Hot Rolled, Cold Drawn
Test Certificates EN 10204 3.1
Length 6 MTR, 12 MTR, Custom

Equivalent Grades & Applications for P22 Alloy Steel Pipes

Material Group Common Name Type UNS Forging Spec. Casting Spec. Equivalent DIN DIN W. No Application
Low Alloy Steel Moly Steel C-1/2Mo K12822 A182-F1 cl2 A217-WC1 15M03 1.5415 Up to 470ºC* (875ºF)
Alloy Steel Chrome Moly 1.1/4Cr-1/2Mo K11572 A182-F11 cl2 A217-WC6 13CRM044 1.7335 Up to 593ºC (1100ºF)
2.1/4Cr-1Mo K21590 A182-F22 cl3 A217-WC9 10CRM09-10 1.738 Up to 593ºC (1100ºF), High Pressure Steam
5Cr-1/2Mo K41545 A182-F5/F5a A217-C5 12CRMO195 1.7362 High Temperature Refinery Service
9Cr-1Mo K90941 A182-F9 A217-C12 X 12 CrMo 9 1 1.7386 High Temp Erosive Refinery Service
9Cr-1Mo-V A182-F91 A217-C12A X 10 CrMoVNb 9 1 1.4903 High Pressure Steam
  • The equipment and pipelines in the power generation industry are manufactured from chrome-molybdenum P22 alloy steel pipes, also known as A335 P22 Gr. pipes. We are a specialist supplier of P22 or T22 steel tubes for boilers and heat exchangers to various power generation units in Middle East, Africa and Eastern Europe.
  • P22 alloy steel pipe shall not have a hardness not exceeding 250 HB/265 HV [25HRC].
  • ASTM A335 P22 Pipe (ASME S/A335, Chorme-Moly) is a seamless ferritic Alloy-Steel Pipe for high temperature service.

ASTM A335 is a standard specification for seamless ferritic alloy-steel pipe for high-temperature service. The specification generally covers “chrome-moly” seamless pipes with remarkable resistance to corrosion and good tensile strength at high-temperature service. The testing requirements for these pipes include the following:

  • Transverse/longitudinal: tension and flattening, hardness, bend tests- for material which has been heat-treated in batch furnaces, these tests shall be made on the 5% of the pipes from each heat lot number. For smaller lots, one pipe at a minimum has to be tested
  • ASTM A335 Gr. P91 shall have a hardness of 250 HB / 265 HV (25 HRC)
  • Hydro testing: shall be applied to every length of pipe
  • The non-destructive electric test is optional

Equivalents of Alloy Steel Pipes Under DIN, ASTM and EN

1.5415 16Mo3 A335 Grade P1
1.7335 13CrMo4-5 A335 Grade P11, P12
1.738 10CrMo9-10 A335 Grade P22
1.7362 X11CrMo5 A335 Grade P5
A335 Grade P9
1.4903 X10CrMoVNb9-1 A335 Grade P91

Chemical Composition of Alloy Steel Chrome Moly Pipes – ASTM A335 P5, P9, P11, P22, and P91

Grade C Mn P S Si Cr Mo
P5 0.15max 0.30-0.60 0.025 0.025 0.50 max 4.00-6.00 0.45-0.65
P9 0.15 max 0.30-0.60 0.025 0.025 0.25-1.00 8.00-10.00 0.90-1.10
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 0.05-0.15 0.30-0.60 0.025 0.025 0.50 max 1.90-2.60 0.87-1.13
P91 0.08-0.12 0.30-0.60 0.02 0.01 0.20-0.50 8.00-9.50 0.85-1.05
V 0.18-0.25 N 0.03-0.07 Ni 0.40 max Al 0.02 max Cb 0.06-0.10 Ti 0.01 max Zr 0.01 max

Mechanical Properties of Alloy Steel Chrome Moly Pipes – ASTM A335 P5, P9, P11, P22, and P91

Grade P11, P22, P5, P9 Grade P91
Tensile strength, min, psi, (MPa) 60,000 (415) 85,000 (585)
Yield strength, min, (MPa) 30.000 (205) 60,000 (415)