Product Groups
A335 seamless steel pipe(15)
ASTM A333 alloy pipes(9)
ASTM A213 alloy tube(10)
Flange & fitting(1)
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Sunny Steel pipe Manufactory
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    chrome moly pipe ,Alloy Steel pipe ,Low Alloy Steel pipe ,High Alloy Steel pipe , Alloy Steel Seamless pipe ,ASTM A213 T5b Seamless alloy tube ,ASTM A213 T11 Seamless alloy pipe ,ASTM A335 P22 alloy steel pipe ,ASTM A335 P22 ,ASTM A335 P91 ,ASTM A333 Grade 6 ,ASTM A213 T22

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    North America , South America , Eastern Europe , Southeast Asia , Africa , Oceania , Mid East , Eastern Asia , Western Europe , Central America , Northern Europe , Southern Europe , South Asia , Domestic Market

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    No. 273, Siping Road Shanghai

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Best Products about A335 seamless steel pipe , ASTM A333 alloy pipes and ASTM A213 alloy tube

Company Profile

  • Sunny Steel pipe Manufactory
  • Sunny Steel pipe Manufactory
  • Sunny Steel pipe Manufactory
  • Sunny Steel pipe Manufactory
  • Sunny Steel pipe Manufactory
  • Sunny Steel pipe Manufactory
  • Sunny Steel pipe Manufactory
  • Sunny Steel pipe Manufactory

Sunny Steel pipe Manufactory

  • Shanghai China
  • 101 - 200 People
  • chrome moly pipe ,Alloy Steel pipe ,Low Alloy Steel pipe ,High Alloy Steel pipe , Alloy Steel Seamless pipe ,ASTM A213 T5b Seamless alloy tube ,ASTM A213 T11 Seamless alloy pipe ,ASTM A335 P22 alloy steel pipe ,ASTM A335 P22 ,ASTM A335 P91 ,ASTM A333 Grade 6 ,ASTM A213 T22
  • North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania
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Chrome Moly Alloy Steel pipe has high Tensile Strength, Corrosion resistance and has High Temperature Strength so it majorly used in Power Generation Industries and Petro Chemical industries. Chrome Moly is derived from Chromium -Molybdenum, which is also, know as Cr-Mo Steel Pipe. This pipe are Intended for High Temperature and high Pressure Service.


Chrome-Moly Alloy Steel pipe has a better strength to Weight ratio than Other steel, which enables us to use thinner wall pipe or smaller diameter pipe to reduce overall weight. Chrome Moly pipe are also known as Alloy pipe

ASTM A335 specification pipe are classified as chrome moly pipe.

General Abbreviations of chrome moly pipe are chrome-moly, cro-moly, CrMo, CRMO, CR-MOLY.


These pipe bear high resistance to rupture at high temperature and pressures. With hydrogen crack resistance and sulfide stress corrosion cracking chrome moly pipe are highly preferred over Carbon pipe.
ASTM A335 is often called as chrome moly pipe because of the chemical contain of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel and Chromium (or chrome) is the essential constituent of stainless steel. The composition chrome moly alloy steel pipe make it ideal for use in power plants, refineries, petro chemical plants, and oil field services where fluids and gases are transported at extremely high temperatures and pressures.

  • Strong resistance to rupturing at high temperatures and high pressures


  • May be used for Hydrogen Sulfide Corrosion Services

  • Resistant to cracking from hydrogen attack and embrittlement

  • Resistant to hot sulfide corrosion cracking

  • Can be used for NACE Applications where sour environments are under high temp and pressure

  • Can be used in NACE-MRO 175 Sour Service

  • Ideal for creep rupture applications

  • Can handle high temperatures with very low elasticity

Applications: Chrome moly pipe under ASTM & ASME specification A/SA 335 P1, P2, P11, P12, P15, P22, P91, P92, P122 are used for power industries whereas ASTM/ASME A/SA 335 P5, P9 are used for petrochemical industries
Certification: Chrome Moly pipe are certified as PER DIN 50049 3.1, EN 10204 3.1/3.2 and NACE MR-0175 & NACE MR-0103
Size: ½- – 56- Outer Diameter & 15NB – 800NB Nominal Bore. Chrome Moly pipe are supplied in single random length and double random length of 4-7 meters and 7-13 meters respectively.
Piping Component Specifications: Flanges and forged fittings – A/SA 182 F1, F2, F5, F9, F11, F12, F15, F22, F91, F92, F122 Wrought Butt-weld Pipe Fittings – A/SA 234 P1, P2, P5, P9, P11, P12, P15, P22, P91, P92, P122
Chrome Moly Pipe Specifications & Grades
SA335 & A335 – Grades P5, P9, P11, P22, P91, P92
A691 1-1/4 Chrome through 9 Chrome (Welded Alternative to A335)


Flanges & Fittings

Alloy Butt Weld Fittings: A/SA-234
WP-5, WP-9, WP-11 (Class 1 & 2), WP-22 (Class 1 & 3), WP-91, WP-92
Alloy Forged Fittings & Flanges: A/SA-182
F-5, F-9, F-11 (Class 1 & 2), F-22 (Class 1 & 3), F-91, F-92
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