Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM A335 Grade P22 Alloy Steel Pipe for Boiler and Superheater
A335 P22 alloy steel pipe, made of 2.25Cr-1Mo chromium molybdenum high-temperature ferrite steel for boilers and superheaters, is a high-temperature and high-pressure pipeline material for power plants.
The chemical composition and properties of T22 and P22 alloy steel pipes are similar. T22 is used for the heating surface of boilers, in direct contact with flue gas. Seamless steel pipes are used for connecting pipes T/P22, which is equivalent to German 10CrMo910. T22 belongs to ASTM SA213 seamless ferrite and austenitic alloy steel pipes (tubes) for boilers, superheaters, and heat exchangers, and P22 belongs to ASTM SA335 seamless ferrite alloy steel pipes for high-temperature use.
Other standard and material
| Alloy steel seamless pipe/tube | |
| PIPES & TUBES | ASTM A335, ASTM A213, ASTM A691 |
| PIPES FITTINGS | ASTM A234 |
| FITTINGS & FLANGES | ASTM A182 |
| GRADES | P1/P5/P9/P11/P12/P22/P91 & T5/T9/T11/T22/T91 |
| FORM (PIPES) | SEAMLESS / E.R.W / EFSW |
| Yuhong Special Steel is Exporters & Supplier of alloy steel seamless pipe, alloy steel pipe gr p5,alloy steel pipe gr p11, alloy steel pipe gr p9, alloy steel pipe gr p22, alloy steel pipe gr p91, ASTM A335, ASTM A213, ASTM A691. | |
| Available Shapes | |
| Tubes & Pipes (SEAMLESS ) up to 30". Tubes & Pipes (ERW ) up to 60". Sheets / plates up to 150 MM. Rod / Bar up to 350 MM. Circle up to 1000 & Above as per your requirements. thickness up to 200 MM & Above as per requirements. | |
ASTM A335 P22 Alloy Steel Pipe Chemical Composition(%)
| Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
| P11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| P22 | 0.05-0.16 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | 0.87-1.13 |
| P5 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 4.00-6.00 | 0.45-0.65 |
| P9 | ≤0.15 | 0.30-0.60 | 0.025 | 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 | 0.020/0.010 | 0.02-0.50 | 8.00-9.50 | 0.85-1.05 |
| P92 | 0.07-0.13 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | ≤0.50 | 8.50-9.50 | 0.30-0.60 |
ASTM A335 P22 Alloy Steel Pipe Mechanical properties
| Grade | Tensile strength | Yield strength | Elongation |
| P11, P22, P5, P9 | ≥415 | ≥205 | ≥30/20 |
| P91 | ≥585 | ≥415 | ≥20 |
| P92 | ≥620 | ≥440 | ≥20 |
Applications
-Pharmaceutical equipment
-Chemical equipment
-Sea water equipment
-Heat exchangers
-Condensers
-Pulp and paper industry
-Off-shore oil drilling companies
-Power generation
-Petrochemicals
-Gas processing
-Specialty chemicals
Summary:
ASTM A335 P22 alloy steel pipe is a 2.25% chromium-1% molybdenum high-temperature ferritic alloy steel seamless pipe with a stable and reliable performance and mature application, capable of maintaining excellent strength, creep resistance, and oxidation corrosion resistance in high-temperature and high-pressure environments below 593°C (1100°F). Its rigorous heat treatment and sophisticated welding process control make it widely used in key high-temperature components in power plant boilers, petrochemicals, and other fields.
