Chrome Moly Pipe Manufacturers, Suppliers & Exporters to South Africa

  • Manufacturers & Suppliers of Chrome Moly Pipes (ASTM A335 P5, P9, P11, P22, P91, P92) in South Africa

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

  • Chrome Moly Seamless Pipes, High Temperature P5 & P9 Seamless Pipes, Chrome Moly Welded Pipes, ERW Pipes, ASTM A335 P11 Seamless Pipes, ASTM A335 P22 Pipes, ASTM A335 P91 Pipes, ASTM A335 P5 Pipes, ASTM A335 P9 Pipes, Alloy Steel Pipes for Power Generation, Alloy Steel Pipes for Refineries, Oil & Gas Applications

  • As a leading exporter and supplier of chrome moly pipes in South Africa, we sell 5000 tons steel pipes per year, including the steel pipes for the high, medium and low pressure boilers. We specialize in selling chrome moly steel heat exchanger tubes, chrome moly steel boiler pipes, and high pressure chrome moly steel pipes in South Africa. In chrome moly steel, ASTM A335 P11, P22, and P91 pipes are used in power generation and in downstream oil and gas, while P5 and P9 grades are for refinery applications.

  • With a collective experience of over 30 years, we have emerged as one of the largest just in time exporter of ASTM A335 P5, P9, P11, P22 and P91 chrome moly steel pipes to South Africa. Chrome moly steel pipes are used in the energy industry for high temperature and very low-temperature service (cryogenic), or for applications with very high pressures. ASTM A335 chrome moly steel pipes are used in conjunction with ASTM A234 WPx series buttweld fittings (WP5, WP9, WP11, WP22, WP91) and A182 Fx forged fittings and flanges (A182 F5, F9, F11, F22, F91). 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 Cape Town, Johannesburg, Durban, Pretoria, Port Elizabeth, Bloemfontein, Nelspruit and Kimberley, the biggest industrial and commercial cities of South Africa. We have manufacturing set up, sales and export offices in both India and China to meet the immediate and long term chrome moly steel pipe requirements across the Republic of South Africa (RSA). We aim at offering high quality but competitive price chrome moly pipes for our global customers.

Professional Manufacturer of Chrome Moly Seamless Pipes and Tubes, U-Tubes, Alloy Steel Seamless Pipes and Tubes

  • Welded Chrome Moly Pipe, Size Range: 1/8″ to 48″
  • Seamless Chrome Moly 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
  • Chrome Moly Pipe Grades: ASTM A335 P5, P9, P11, P22, P91
Alloy Steel ASTM A335 P5, P9, P11, P22, P91 Pipe Manufacturers, Suppliers, Exporters

Are You Looking for a Chrome Moly Steel Pipe Supplier in South Africa?

We are one of the largest chrome moly steel pipe manufacturer, supplier and exporter in South Africa. We welcome you to contact us and send us your requirements. Metline specialises in export of alloy steel ASTM A335 P5, P9, P11, P22, P91 pipe suppliers to South Africa. We can offer CIF, Ex-Works, DDP delivery terms.

Product Chrome Moly Seamless Pipe
Specification ASTM A335, ASME SA335
Grades P5, P9, P11, P22, P91, P92
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

ASTM A335 Pipe (ASME S/A335, Chrome-moly, Cro-moly, CrMo, CRMO, CR-MOLY.) is a seamless ferritic Alloy Steel Pipe for high temperature service application. Pipe ordered to this specification normally used for power industry with P11,P22 grades, and for petro-chemical plants with P91 grade, as well as for refineries with P5 & P9 grades.

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 Chrome Moly Steel Pipes Under DIN, ASTM and EN

DIN EN ASTM
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 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)