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ASME SA335 P22 1.25Cr-0.5Mo Seamless Ferritic Alloy Steel Pipe for Power Plant Boilers

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ASME SA335 P22 1.25Cr-0.5Mo Seamless Ferritic Alloy Steel Pipe for Power Plant Boilers

Brand Name : YUHONG

Model Number : ASME SA335 P22

Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Place of Origin : CHINA

MOQ : 500KGS

Price : Negotiable

Payment Terms : L/C, T/T

Supply Ability : 1500 tons per month

Delivery Time : 15-30days

Packaging Details : Plywooden Case /Iron Case

Standard : ASME SA335

Grade : P22

Material : Alloy Steel

Product Type​ : Seamless Pipe

Size Range​ : OD: 1/2"-48" / WT: SCH 5S-XXS

​​Application : Power Plant Boilers

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ASME SA335 P22 1.25Cr-0.5Mo Seamless Ferritic Alloy Steel Pipe for Power Plant Boilers

​​YUHONG GROUP​​ is a leading manufacturer of ​​high-performance alloy steel pipes​​, specializing in ASME-certified solutions for critical power and industrial applications. Our ​​ASME SA335 P22 Seamless Alloy Steel Pipes​​ combine superior material engineering with rigorous quality control to meet the demanding requirements of modern power plants.

Chemical Composition of ASME SA335 P22 Alloy Steel Pipe​

Element​​ ​​Content Range (%)​​ ​​Key Function​​
​​Carbon (C)​​ 0.05 - 0.15 Controls strength and weldability
​​Manganese (Mn)​​ 0.30 - 0.60 Enhances hardenability
​​Phosphorus (P)​​ ≤0.025 Minimizes brittleness
​​Sulfur (S)​​ ≤0.025 Improves machinability
​​Silicon (Si)​​ ≤0.50 Deoxidizer
​​Chromium (Cr)​​ 1.90 - 2.60 Provides oxidation resistance
​​Molybdenum (Mo)​​ 0.87 - 1.13 Enhances high-temperature strength

Heat Treatment Requirements for ASME SA335 P22 Alloy Steel Pipe​

Parameter​​ ​​Requirement​​ ​​Notes​​
​​Standard​​ ASME SA335/SA335M 2023 Edition
​​Heat Treat Type​​ Full/Isothermal Anneal ​​or​​ Normalize & Temper Multiple options permitted
​​Normalizing Temperature​​ 1250°F [675°C] (minimum) Air cooling standard
​​Subcritical Anneal/Temper Temp​​ 1250°F [675°C] (minimum) Equivalent to normalizing temp
​​Cooling Media​​ Not specified (default: air cooling) Accelerated cooling optional

Tensile Requirements for ASME SA335 P22

Property​​ ​​Requirement (ksi)​​ ​​Requirement (MPa)​​
Tensile Strength, min 60 415
Yield Strength, min 30 205

​​ASME SA335 P22 (UNS K21590) Required Testing Summary

1. Mechanical Testing Requirements​

Test Type​​ ​​Requirement​​
​​Tensile Test​​ Minimum: 415 MPa (60 ksi) tensile, 205 MPa (30 ksi) yield
​​Hardness Test​​ Not required for P22 (applies only to P23/P91/P92 grades)
​​Flattening Test​​ Required for OD≤NPS 25 pipes (or bend test for OD>NPS 25)
​​Bend Test​​ Alternative for OD≥NPS 10 pipes (180° bend at room temp, 25mm inner diameter)

2. Nondestructive Examination

Method​​ ​​Applicability​​
​​Hydrostatic Test​​ Required for OD>10" [250mm] & WT≤0.75" [19mm] pipes
​​Electric Test​​ Default for other sizes (unless purchaser specifies hydrostatic test)
​​Ultrasonic Test​​ Not required unless specified (mandatory only for P91/P92 grades)

ASME SA335 P22 Seamless Alloy Steel Pipe - Key Application Advantages

  • Superior High-Temperature Performance​​
  • ​​Enhanced Safety for Power Plants​​
  • ​​Corrosion Resistance​​
  • ​​Fabrication Advantages​​
  • ​​Quality Assurance​​

ASME SA335 P22 1.25Cr-0.5Mo Seamless Ferritic Alloy Steel Pipe for Power Plant Boilers


Product Tags:

ASME SA335 P22 alloy steel pipe

      

seamless ferritic steel tube

      

power plant boiler steel pipe

      
Quality ASME SA335 P22 1.25Cr-0.5Mo Seamless Ferritic Alloy Steel Pipe for Power Plant Boilers for sale

ASME SA335 P22 1.25Cr-0.5Mo Seamless Ferritic Alloy Steel Pipe for Power Plant Boilers Images

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