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4 Inch Stainless Steel Return Bend Pipe Fitting ASTM A403 WP321 For Furnace

4 Inch Stainless Steel Return Bend Pipe Fitting ASTM A403 WP321 For Furnace

Brand Name: YUHONG
Model Number: ASTM A403 WP321-S
MOQ: 100 KGS
Price: YUHONG HOLDING GROUP CO., LTD
Payment Terms: T/T,L/C
Supply Ability: 500 Ton Per Month
Detail Information
Place of Origin:
CHINA
Certification:
ABS, GL, DNV, NK, PED, AD2000, CCS, ISO 9001-2008
Features:
Corrosion-resistant, High Strength, Durable
Specification:
ASTM A403
Material Grade:
WP321-S, 08X18H10T, 12X18H10T
Application:
Oil, Gas, Chemical, Petrochemical, Power, And Other Industries
Size:
4 Inch
Material:
Stainless Steel
Shape:
180 Degree
Connection Type:
Butt Welded
Testing:
UT , PT , MT, PMI
Standard:
ANSI/ASME B16.9
Surface:
Polished
Packaging Details:
Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Supply Ability:
500 Ton Per Month
Highlight:

4 inch return bend pipe fitting

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WP321 return bend pipe fitting

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WP321 return bend pipe

Product Description
4 Inch Stainless Steel Return Bend Pipe Fitting ASTM A403 WP321 For Furnace
Product Specifications
Attribute Value
Specification ASTM A403
Material Grade WP321-S, 08X18H10T, 12X18H10T
Application Oil, Gas, Chemical, Petrochemical, Power, and other industries
Size 4 inch
Material Stainless Steel
Shape 180 Degree
Connection Type Butt Welded
Testing UT, PT, MT, PMI
Standard ANSI/ASME B16.9
Features Corrosion-resistant, High strength, Durable
Surface Polished
Available Configurations
Type Radius Size Range
Short Radius R=1.0 x Nominal Dia. 1/2" - 24"
Customized As per requirement Available
Chemical Composition
Element C Mn P S Si Cr Ni
% ≤0.08 ≤2.00 ≤0.045 ≤0.03 ≤1.00 17-19 9-12
Mechanical Properties
  • Tensile Strength: ≥515 MPa
  • Yield Strength: ≥205 MPa
  • Elongation: ≥35%
  • Hardness: ≤187 HB
Manufacturing Process
  • Raw material inspection
  • Cold/Hot forming
  • Solution heat treatment
  • Surface finishing
  • NDT testing
  • Dimensional inspection
  • Quality control
Key Features
  • Excellent corrosion resistance
  • Superior high-temperature stability
  • Outstanding mechanical properties
  • Precise dimensional accuracy
  • Smooth surface finish
  • Enhanced titanium stabilization
Applications
  • Chemical processing equipment
  • Food processing systems
  • Pharmaceutical industry
  • Marine applications
  • Nuclear power plants
  • High-temperature heat exchangers
Quality Assurance
  • ISO 9001:2015 certified
  • PED 2014/68/EU approved
  • ASME certified facility
  • Full material traceability
  • Third-party inspection available
Frequently Asked Questions
Q: What is the maximum operating temperature?
A: Up to 816°C (1500°F) for continuous service
Q: Are custom specifications available?
A: Yes, we can manufacture according to customer specifications
Q: What are the standard surface treatments?
A: Pickled and passivated, additional treatments available upon request
ASTM A403 WP321 Stainless Steel 180° Return Bends manufactured by Yuhong Holding Group
About Yuhong Holding Group
Your Trusted Partner in Industrial Heat Exchange Solutions

As a leading manufacturer with 20 years of export experience to 80 countries, Yuhong Holding Group specializes in premium heat exchange components. Our 20,000-square-meter facility houses 55 production lines and over 110 skilled professionals, ensuring world-class manufacturing standards.

Ranking among China's top 5 finned tube exporters, we combine advanced manufacturing technology with stringent quality control to deliver exceptional products. Our commitment to excellence and customer satisfaction has earned us trust worldwide.

Contact our technical team for detailed specifications and customized solutions to meet your specific requirements.