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Boiler tubes, hydraulic steel tubes, high temperature steel alloys tubes, Boiler tubes, Heat Exchanger Tubes, Hydraulic and pneumatic Tubes, High-temperature steel tubes, ASTM A213 GRADE T2 Tubes, ASTM A213 GRADE T5 Tubes, ASTM A213 GRADE T9 Tubes, ASTM A213 GRADE T11 Tubes, ASTM A213 GRADE T12 Tubes, ASTM A213 GRADE T22 Tubes, ASTM A213 GRADE T92 Tubes, ASTM A213 GRADE T91 Tubes, ASTM A335 Alloy Pipes
ASTM A335 Seamless Ferritic Alloy Steel Pipe for High-Temperature Service. ASTM A335 standard is issued under the fixed designation A 335/A 335M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last pre approvals. A superscript Epsilon ( ュ) indicates an editorial change since the last revision or pre approvals.
This specification covers seamless ferritic alloy-steel pipe for high-temperature service. The pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding. The steel material shall conform to chemical composition, tensile property, and hardness requirements. 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 with the required practices. The range of pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practices. The different mechanical test requirements for pipes, namely, transverse or longitudinal tension test, flattening test, and hardness or bend test are presented.
ASTM A335 P2 alloy chrome-moly pipe in South Korea.
ASTM A335 P5 alloy chrome-moly pipe in South Korea.
ASTM A335 P9 alloy chrome-moly pipe in South Korea.
ASTM A335 P11 alloy chrome-moly pipe in South Korea.
ASTM A335 P22 alloy chrome-moly pipe in South Korea.
ASTM A335 P91 alloy chrome-moly pipe in South Korea.
ASTM A335 P92 alloy chrome-moly pipe in South Korea.
ASTM A335 P2 alloy chrome-moly pipe.
ASTM A335 P5 alloy chrome-moly pipe.
ASTM A335 P9 alloy chrome-moly pipe.
ASTM A335 P11 alloy chrome-moly pipe.
ASTM A335 P22 alloy chrome-moly pipe.
ASTM A335 P91 alloy chrome-moly pipe.
ASTM A335 P92 alloy chrome-moly pipe.
Sizes Range.
NPS 1/4” to NPS 24”
Wall Thickness – Schedules 40 through 160, STD, XS, XXS.
Unscheduled heavy wall pipe thicknesses available up to 4 inches.
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.
Material Trade Name.
| Trade Name |
Grade
|
UNS #
|
Pipe
|
Forged / Bored Pipe*
|
| 1 1/4 Chrome |
P11
|
K11597
|
A369 / SA369
|
|
| 2 1/4 Chrome |
P22
|
K21590
|
A369 / SA369
|
|
| 5 Chrome |
P5
|
K41545
|
A369 / SA369
|
|
| 9 Chrome |
P9
|
S50400
|
A369 / SA369
|
|
| P91 |
P91
|
K91560
|
A369 / SA369
|
|
| P92 |
P92
|
K92460
|
A369 / SA369
|
APPROVED VENDERS MAKE & ORIGIN |
|||
| ARAMCO | ADMA-OPCO | ADPC | IPC |
| GASCO | ADMA | SAIPEM | PDO |
| TOTAL | OIEC | IOOC | NIOC |
| KOC | ZADCO | ADNOC | SABIC |
| KNPC | BP | EIL | IOCL |
Testing Services.
When every measurement requires the highest level of precision—we leave nothing to chance.
Critical applications demand highly accurate measurements and very tight tolerances. So we maintain a range of in-house lab testing services and a close network of trusted testing contractors to provide the measurements and assurance you need. It’s just one way we help ensure the highest level of precision in all of our products—and all without slowing your projects down.
Non-Destructive |
Destructive |
|---|
| Ultrasonic Testing (UT) Hydro-Testing Positive Material Identification (PMI) X-Ray, Magnetic Particle (MP) Liquid Penetrant (LP) |
Chemical Analysis Mechanical Testing Flattening & Bend Tests Photomicrographs Metallography Impact Testing Hardness Testing |
Material Specification
| MATERIAL | SPECIFICATION | |
| ASTM | ASME | |
| CHROME- MOLY ALLOY STEEL PIPE NOMINAL WALL SEAMLESS |
A335 Grade P5 5% Chrome; ½% Moly |
SA335 Grade P5 5% Chrome; ½% Moly |
| CHROME- MOLY ALLOY STEEL PIPE NOMINAL WALL SEAMLESS |
A335 Grade P9 9% Chrome; 1% Moly |
SA335 Grade P9 9% Chrome; 1% Moly |
| CHROME- MOLY ALLOY STEEL PIPE NOMINAL WALL SEAMLESS |
A335 Grade P11 1-1/4% Chrome; ½% Moly |
SA335 Grade P11 1-1/4% Chrome; ½% Moly |
| CHROME- MOLY ALLOY STEEL PIPE NOMINAL WALL SEAMLESS |
A335 Grade P22 2-1/4% Chrome; 1% Moly |
SA335 Grade P22 2-1/4% Chrome; 1% Moly |
| CHROME- MOLY ALLOY STEEL PIPE NOMINAL WALL SEAMLESS |
A335 Grade P91 9% Chrome; 1% Moly + trace elements |
SA335 P91 A335 9% Chrome; 1% Moly + trace elements |
Chemical Composition
| Grade | Carbon | Manganese | Phosphorous,max | Sulfur, max | Silicon | Molybdenum | ||||||||||||
| ASTM A335 P5 | 0.15max | 0.30-0.60 | 0.025 | 0.025 | 0.50max | 0.45-0.65 | ||||||||||||
| ASTM A335 P9 | 0.15max | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 0.90-1.10 | ||||||||||||
| ASTM A335 P11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 0.44-0.65 | ||||||||||||
| ASTM A335 P22 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50max | 0.87-1.13 | ||||||||||||
| ASTM A335 P91 | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.010 | 0.20-0.50 | 0.85-1.05 | ||||||||||||
| Zr 0.01 max | 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 | ||||||||||||
Tensile Requirements.
| Tensile Strength, min., psi |
P-5 | P-9 | P-11 | P-22 | P-91 | P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC]. |
||||||||||||
| ksi | 60 | 60 | 60 | 60 | 85 | |||||||||||||
| MPa | 415 | 415 | 415 | 415 | 585 | |||||||||||||
| Yield Strength, min., psi | ||||||||||||||||||
| ksi | 30 | 30 | 30 | 30 | 60 | |||||||||||||
| MPa | 205 | 205 | 205 | 205 | 415 | |||||||||||||
Mechanical Properties.
| Mechanical properties | P1, P2 | P12 | P23 | P91 | P92, P11 | P122 | ||||||||||||
| Tensile strength | 380 | 415 | 510 | 585 | 620 | 620 | ||||||||||||
| Yield strength | 205 | 220 | 400 | 415 | 440 | 400 | ||||||||||||
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, restraints grain growth and makes chromium steel less susceptible to embrittlement. Moly is the most effective single additive that increases high temperature creep strength.
OUR SALES LOCATIONS.
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