| Product Name: | Alloy Steel Seamless Tube | Standard: | ASTM A335 / ASME SA335 |
|---|---|---|---|
| Material: | P22，T22 | O.D: | 1/2′ TO 24 ‘ |
| End: | Plain End， Beveled End | Length: | Single Random， Double Random & Cut Length |
ASTM A335 Grade P22 Alloy Steel Seamless Tube For Boiler and Superheaters
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/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 |
| TONG CHUANG Special Steel is Exporters & Supplier of alloy steel， 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. | |
Alloy Steel Pipe A335 P22
Size : 1/2" TO 24 "IN OD & NB
Schedule: SCH20， SCH30， SCH40
Type : Fabricated / Seamless
Length : Single Random， Double Random & Cut Length.
End : Plain End， Beveled End.
MATERIALS :
Alloy Steel Pipe A335 P22
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 |
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
