ASTM A335 Alloy Pipe for High-Temperature Service,Grade.P5,P9,P11,P22,P91,P92.
Size OD,WT,Tests
Mechanical Properties
Grade and Chemical Composition
ASTM A335 Standard Specification for High-Temperature Service
ASTM A335 is a ASTM standard specifies Seamless Ferritic Alloy Steel Pipe for High-Temperature Service.
ASTM A335 pipe ordered to this specification shall be suitable for bending and similar forming operations, and for fusion welding. Selection will depend upon design, service conditions, mechanical properties, and high-temperature characteristics.
Seamless Ferritic Alloy-Steel Pipe for High Temperature Service.
This specification covers both nominal and minimum wall thickness.
Hengtong Group will supply all the Alloy Steel A335/SA335 Seamless P5,P9,P11,P22,P91,P92. Piping that your company needs. Economic growth in the United States has led to an increased demand for P5 in recent years. We are not only capable of meeting the demand for this P5 high pressure steel pipe, also known as boiler steel pipe, but US Metals can also meet different needs for customized sizes and shapes.
Hengtong Group has an experienced and knowledgeable staff that can assist you with all your specialty alloy requirements, no matter how difficult the situation. Ideal for use in the oil and gas industries, P5,P9,P11,P22,P91,P92 pipe is suitable for bending, flanging, and similar forming operations, and for fusion welding.
Go to the Hengtong Group comparison chart titled The Difference Between ASTM A213 and ASTM A335 for more information on the difference between P5 and T5.
Size OD,WT,Tests
Steel Grade：ASTM A335 GR P5 | GR P9 | GR P11 | GR P22 | GR P91 | GR P92.
Size (mm) we can supply:
Hot-rolled: O.D.: 51-508; W.T.:7∼60; L: max 16000
Cold-drawn: O.D.: 10-50; W.T.:2∼10; L: max 16000
Hot-expanded: O.D.: 325-1020; W.T.:6∼50; L: max 12000 and other specifications in accordance with customer requirements.
W.T.:7∼60; L: max 12000 other SCH 40, SCH STD, SCH 80, SCH XS, SCH 160
Tests
Tensile tests: Transverse and Longitudinal
Flattening test
Hardness test
Bend Test
Mechanical Properties:
| Standard | Steel Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Impact Energy(J) | Rigidity |
| ASME SA335 | SA335 P11 | ≥415 | ≥205 | ≥22 | ≥35 | ≤163HB |
| SA335 P12 | ≥415 | ≥220 | ≥22 | ≥35 | ≤163HB | |
| SA335 P22 | ≥415 | ≥205 | ≥22 | ≥35 | ≤163HB | |
| SA335 P5 | ≥415 | ≥205 | ≥22 | ≥35 | ≤187HB | |
| SA335 P91 | 585∼760 | ≥415 | ≥20 | ≥35 | ≤250HB | |
| SA335 P92 | ≥620 | ≥440 | ≥20 | ≥35 | ≤250HB |
Grade and Chemical Composition (%)
| Grade | C | Mn | P, S, max | Si | Cr | Mo |
| P11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| P22 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.50 max | 1.90-2.60 | 0.87-1.13 |
| P5 | 0.15 max | 0.30-0.60 | 0.025 | 0.50 max | 4.00-6.00 | 0.45-0.65 |
| P9 | 0.15 max | 0.30-0.60 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
| P91 | 0.08-0.12 | 0.30-0.60 | 0.020/0.010 | 0.20-0.50 | 8.00-9.50 | 0.85-1.05 |
| V 0.18-0.25 | N 0.03-0.07 | Ni 0.40 max | Al 0.02 max | Nb 0.06-0.10 | Ti 0.01 max | |
| P92 | 0.07-0.13 | 0.30-0.60 | 0.020/0.010 | 0.50 max | 8.50-9.50 | 0.30-0.60 |
| V 0.15-0.25 | N 0.03-0.07 | Ni 0.40 max | Al 0.02 max | Nb 0.04-0.09 | W 1.50-2.00 | |
| B 0.001-0.006 | Ti 0.01 max | Zr 0.01 max |
Ordering Information
Orders for material under this specification should include the following, as required, to describe the desired material adequately:
| Quantity | Feet, meters, or number of lengths |
| Name of material | Seamless Alloy Steel Pipe |
| Grade | STANDARD AND STEEL GRADE |
| Manufacture | Hot-finished or cold-drawn |
| Size using one of the following: | |
| NPS and Schedule Number | |
| Outside Diameter and Nominal Wall Thickness | |
| Length | Specific or Random |
| End Finish | |
ASTM A335 Standard Specification for Seamless Steel Pipe for High-Temperature Service
This specification covers seamless ferritic alloy-steel pipe for high-temperature service. The pipe shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Grade P2 and P12 steel pipes shall be made by coarse-grain melting practice. 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 to 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.
1. Scope
1.1 This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high-temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Selection will depend upon design, service conditions, mechanical properties, and high-temperature characteristics.
1.2 Several grades of ferritic steels (see Note 1) are covered. Their compositions are given in Table 1.
Note 1.. Ferritic steels in this specification are defined as low- and intermediate-alloy steels containing up to and including 10% chromium.
1.3 Supplementary requirements (S1 to S7) of an optional nature are provided. These supplementary requirements call for additional tests to be made, and when desired, shall be so stated in the order together with the number of such tests required.
ASTM A335 Pipe (ASME S/A335, Chorme-Moly) is a seamless ferritic Alloy-Steel Pipe for high temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), 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.
2. Referenced Documents
A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
E213 Practice for Ultrasonic Examination of Metal Pipe and Tubing
E309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products
B36.10M Welded and Seamless Wrought Steel Pipe
SAE J 1086 Practice for Numbering Metals and Alloys (UNS)
SNT-TC-1A Recommended Practice for Nondestructive Personnel Qualification and Certification
