Name: ASME SA335 P22 1.25Cr-0.5Mo Seamless Ferritic Alloy Steel Pipe for Power Plant Boilers
Brand: Yuhong Group Co.,Ltd
SKU: ASTM A790 UNS S32750
Price: 1000000.00 USD
Availability: InStock

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

Product Details:

Place of Origin:	CHINA
Brand Name:	YUHONG
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:	ASTM A790 UNS S32750

Payment & Shipping Terms:

Minimum Order Quantity:	500KGS
Price:	Negotiable
Packaging Details:	Plywooden Case /Iron Case
Delivery Time:	15-30days
Payment Terms:	L/C, T/T
Supply Ability:	1500 tons per month

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Detailed Product Description

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
Highlight:	ASME SA335 P22 alloy steel pipe , seamless ferritic steel tube , power plant boiler steel pipe

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)