ASTM SA335 P22 seamless cold drawn ferritic alloy steel pipe
ASTM A335 Chrome Moly Pipe
ASTM A335 Seamless Ferritic Alloy-Steel Pipe for High-Temperature service. Pipe ordered to this specification shall be suitable for bending,
flanging, and similar forming operations, and for fusion welding.
Sometimes referred to as “P Grade”, chrome moly pipe is popular in
P-Grades P5, P9, P11, P22, and P91. The most common use of grades
P11, P22, and P91 is in the power industry and petro-chemical
plants, Grades P5 and P9 are commonly used in refineries.
A335 is often called chrome moly pipe because of the chemical
makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases
the strength of steel as well as the elastic limit, resistance to
wear, impact qualities, and hardenability. Moly increases the
resistance to softening, restrains grain growth and makes chromium
steel less susceptible to embrittlement. Moly is the most effective
single additive that increases high temperature creep strength. It
also enhances the corrosion resistance of steel, and inhibits
pitting. Chromium (or chrome) is the essential constituent of
stainless steel. Any steel with 12% or more Chrome is considered
stainless. Chrome is virtually irreplaceable in resisting oxidation
at elevated temperatures. Chrome raises the tensile, yield, and
hardness at room temperatures. 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.
Grades: P-5, P-9, P-11, P-22, and P-91
NPS 1/4'' to NPS 48''
Wall Thickness - Schedules 10 through 160, STD, XS, XXS.
Unscheduled heavy wall pipe thicknesses available up to 4 inches.
|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|
- Architectural/Civil Engineering: Cladding, handrails, door and
window fittings, street furniture, structural sections, enforcement
bar, lighting columns, lintels, masonry supports.
- Transport: Exhaust systems, car trim/grilles, road tankers, ship
containers, ships chemical tankers, refuse vehicles.
- Chemical/Pharmaceutical: Pressure vessels, process piping.
- Oil and gas: Platform accommodation, cable trays, sub-sea
- Medical: Surgical instruments, surgical implants, food processing.
- Food and Drink: Catering equipment, brewing, distilling, food
- Water: Water and sewage treatment, water tubing, hot water tanks.
- General: Springs, fasteners(bolts, nuts and washers) wire.