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China factory - YUHONG HOLDING GROUP CO., LTD

YUHONG HOLDING GROUP CO., LTD

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  3. ASTM A403 WP321H-S 180° Return Bends High-Temp Resistant Stainless Steel For
China ASTM A403 WP321H-S 180° Return Bends High-Temp Resistant Stainless Steel For
China ASTM A403 WP321H-S 180° Return Bends High-Temp Resistant Stainless Steel For

  1. China ASTM A403 WP321H-S 180° Return Bends High-Temp Resistant Stainless Steel For
  2. China ASTM A403 WP321H-S 180° Return Bends High-Temp Resistant Stainless Steel For
  3. China ASTM A403 WP321H-S 180° Return Bends High-Temp Resistant Stainless Steel For
  4. China ASTM A403 WP321H-S 180° Return Bends High-Temp Resistant Stainless Steel For

ASTM A403 WP321H-S 180° Return Bends High-Temp Resistant Stainless Steel For

  1. MOQ： 100 KGS
  2. Price： Negotiable
  3. Get Latest Price
Payment Terms TT, LC
Supply Ability 500 Ton Per Month
Delivery Time 20-80 days
Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Specification ASTM A403
Material Grade WP321H-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
Brand Name Yuhong
Model Number ASTM A403 WP321H-S
Certification ABS, BV, DNV, CCS, LR
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms TT, LC Supply Ability 500 Ton Per Month
Delivery Time 20-80 days Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Specification ASTM A403 Material Grade WP321H-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 Brand Name Yuhong
Model Number ASTM A403 WP321H-S Certification ABS, BV, DNV, CCS, LR
Place of Origin China
High Light High Temp Resistant Return Bends ，ASTM A403 Return Bends ，Furnace Piping Return Bends

ASTM A403 WP321H-S 180° Return Bends: High-Temp Resistant Stainless Steel for Furnace Piping

 

Yuhong Holding Group presents ASTM A403 WP321H-S 180° return bends, engineered for critical furnace connections in corrosive and high-temperature environments. These elbows ensure seamless flow in finned tube systems, combining durability with precision performance.

 

Material & Chemistry
Crafted from TP321H-S stainless steel, stabilized with titanium to resist carbide precipitation, ideal for elevated temperatures:

 

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
% 0.04-0.10 ≤2.00 ≤0.045 ≤0.03 ≤1.00 17-19 9-12

 

 

Mechanical Properties:

​

Property
Tensile Strength
Yield Strength
Elongation
Max Operating Temp
Corrosion Resistance
Value
≥515 MPa
≥205 MPa
≥30%
870°C
Excellent in oxidizing environments

 

Manufacturing & Design
 
  • Precision Forging: Ensures uniform wall thickness and tight radius tolerance (1.5D standard).
  • Solution Annealing: 925–1010°C heat treatment enhances grain structure for high-temperature stability.
  • HF Weld Compatibility: Matches finned tube systems with seamless integration in heater circuits.

 

Applications
 
Perfect for:
  • Industrial furnace radiant coils
  • Petrochemical reformer units
  • Waste heat recovery systems
  • Corrosive gas pipelines

Key Advantages

  • Carbide Stability: Titanium addition prevents intergranular corrosion under cyclic heating.
  • Thermal Fatigue Resistance: Handles rapid temperature fluctuations common in furnace operations.
  • Dimensional Accuracy: Tight tolerances reduce flow turbulence and pressure drop.

FAQ

Q: Can these bends be used with acidic fuels?
A: Yes, TP321H-S resists sulfuric and nitric acid corrosion typical in industrial exhaust.
Q: What sizes are available?
A: Standard sizes ½"–12", with custom dimensions for specific furnace layouts.

About Yuhong Holding Group

With 20 years exporting to 80 countries, we rank among China’s top 5 finned tube suppliers. Our 20,000㎡ facility houses 55 production lines and 110 experts, delivering advanced heating components. We offer full-range accessories, from elbows to custom fittings, backed by strict quality controls.
 
Contact: jimmy@steelseamlesspipe.com | WhatsApp: +86 18892647377
Visit www.steelfintube.com for technical specs and certifications.
 

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Importer,Exporter,Trading Company,Seller,Other

  • Year Established:

    1990

  • Total Annual:

    50M-70M

  • Employee Number:

    50~800

  • Ecer Certification：

    Verified Supplier

Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories,  the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories,  the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...

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Get in touch with us

  • Reach Us
  • YUHONG HOLDING GROUP CO., LTD
  • 20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
  • https://www.steelfintube.com/

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