Astm A335 Seamless Ferritic Alloy Steel Pipe For High Temperature Service - Chinaprice: contact company for price
ASTM A335 Chrome Moly Pipe
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
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
P22, P5, P9Grade P91
Tensile strength, min, psi, ( MPa) 60, 000 ( 415)
85, 000 ( 585)
Yield strength, min, ( MPa) 30.000 ( 205)
60, 000 ( 415)
( Note: This is summarized information from ASME
Specification A335. Please refer to the specific Standard or
Specification or contact us for more details. )
Permissible Variations in Diameter
For pipe ordered to NPS or outside diameter, variations
outside diameter shall not exceed those specified following:
NPS Designator OverUnder
In. mm In.
1⁄ 8to 11⁄ 2, incl. 1⁄ 64 ( 0.015) 0.40 1⁄ 64
( 0.015) 0.40
Over 11⁄ 2 to 4, incl. 1⁄ 32 ( 0.031) 0.79 1⁄ 32
( 0.031) 0.79
Over 4 to 8, incl. 1⁄ 16 ( 0.062) 1.59 1⁄ 32
Over 8 to 12, incl. 3⁄ 32 ( 0.093) 2.38 1⁄ 32
Over 12 6 1 % of the pacified outside diameter
For pipe ordered to inside diameter, the inside diameter
shall be not vary more than 1 % from the specified inside
Packing: Bare packing/ bundle packing/ crate packing/ wooden
protection at the both sides of tubes and suitably protected
for sea- worthly delivery or as requested.
Inspection and Test: Chemical Composition Inspection,
Mechanical Properties Test( Tensile Strength, Yield Strength,
Elongation, Flaring, Flattening, Bending, Hardness, Impact
Test) , Surface and Dimension Test, No- destructive Test,
Surface treatment: Oil- dip, Varnish, Passivation,
Phosphating, Shot Blasting.
Both ends of each crate will indicate the order no. , heat
no. , dimensions, weight and bundles or as requested.
- Posted By: Ningbo Junfun International Trade Co.,Ltd
- Phone: 8605748200788
- Address: B-2320, ShiJi Plaza,Daliang Street No.118,Haishu D, Ningbo, China
- Website: http://www.junfunsteel.com
Published date: September 14, 2015 -
- Business Description: Junfun is an available Chinese supplier located in Ningbo city. We focus
on steelfiled, under the brand name of "Junfun", including seamless
steel pipe,welded steel pipe, ball valve, butterfly valve, flange,
elbow, tee,etc., which are used in industries like petrol,
chemical,pharmaceuticals, environmental protection, food&water,
conservancy,shipbuilding, automobile, aerospace, pressure vessels,
mechanical processing, etc. Professional and experienced workers, strict
supply chain management ensures the fulfillment of clients'
From the raw material to finished products, we insist on recording each
step of production situation and test, which can track the quality
problem. Welcome inquiry, welcome cooperation.
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