Alloy Steel Pipe

• With a collective experience of over 30 years, we have emerged as one of the largest just in time exporter of ASTM A33S PS, P9. PH. P22 and P91 alby steel pipes worldwide. Alloy 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 A33S alby steel pipes are used in conjunction with ASTM A234 WPx series buttweld fittings (WPS WP9. WP11. WP22. WP9I) and A182 Fx forged fittings and flanges (A182 FS. F9. FIT. F22 F91J. All these materials have similar chemical (Chrome. Moly. Nickel) and mechanical properties and can be easily welded and installed on site.
• 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 the globe. We aim at offering high quality but competitive price chrome moly pipes for our global customers. The benefits of alloy steel pipes include its tensile strength, yield strength, fatigue resistance, toughness, and wear resistance. We deal in all grades of alloy steel pipes including Chrome Moly Pipe. Low Temperature Pipe. ASTM Standards. EN102I6. ASTM A213. ASTM A33S ASTM A333. ASTM ASI9. and DIN 1717S.
• If you are satisfied with our seamless alloy steel pipe ASTM A33S PS. P9. P11. P22. and P91. please be free to place orders with our factory. Our company is one of the leading manufacturers and suppliers worldwide. We have many quality products for sale at your choice Welcome to enjoy our competitive price and service.

Professional Manufacturer of Alloy Steel Seamless Pipes and TUbes. U-Tubes Alloy Steel Seamless Pipes and Tubes

• Welded Alby Steel Pipe. Size Range 1 /8* to 48*
• Seamless Alby Steel Pipes. Size Range 1/8`to 48*
• Thickness    SCH 20. 30. 40. STD. XH SO. 100.120.140.160. XXH. WT is 211mm - 40mm
• Additional Services: Fusion Bond Epoxy. Galvanizing. 3LPE. Tar
• Epoxy -   Alby Steel Pipe Grades: ASTM A33S PS. P9. Pll. P2Z P91

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 die 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: Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non - destructive examination method in accordance to the required practices.
• The non - destructive electric test is optional

Alloying Elements of Steel and Its Impact on Properties of Alloy Steel Pipes or Chrome Moly Pipes

• Chromium - Adds hardness Increased toughness and wear resistance.
• Cobalt - Used in making cutting tools improved Hot Hardness (or Red Hardness).
• Manganese - Increases surface hardness Improves resistance to strain, hammering & shocks.
• Molybdenum - Increases strength Improves resistance to shock and heat
• Nickel - Increases strengdi 6* toughness. Improves corrosion resistance
• Tungsten - Adds hardness and improves grain structure Provides improved heat resistance.
• vanadium - Increases strength, toughness and shock resistance Improved corrosion resistance
• Chromium - Vanadium - Greatly improved tensile strength. It is hard but easy to bend and cut