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A403 ASTM WP321-S 180 Degree Return Bend Elbow Stainless Steel For Shipbuilding Boiler

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A403 ASTM WP321-S 180 Degree Return Bend Elbow Stainless Steel For Shipbuilding Boiler

Brand Name:	YuHong
Model Number:	ASTM A403 WP304L, WP304H, WP310S, WP316H, WP316L, WP321
MOQ:	1 PC
Price:	Negotiable
Packaging Details:	Ply-wooden Cases/Pallets
Payment Terms:	T/T, L/C AT SIGHT

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

ISO,PED, TUV, ABS, DNV, GL , LR , KR, BV, CCS, COST

Product Name:

180 Degree Elbow SR/180 Degree Return Bend

Surface:

Black Painted Or Oiled

Test:

Size Inspection, NDE Test...

Standard:

ASME B16.9

Supply Ability:

According to Clients' requirements

Highlight:

A403 Return Bend

180 Degree Return Bend

Shipbuilding Boiler return bend pipe

Product Description

A403 ASTM WP321-S 180 Degree Return Bend Elbow Stainless Steel For Shipbuilding Boiler

Product Specifications

Attribute	Value
Product Name	180 Degree Elbow SR/180 Degree Return Bend
Surface	Black Painted or Oiled
Test	Size Inspection, NDE Test
Standard	ASME B16.9

Product Description

ASTM A403 WP321-S 180° Elbow Stainless Steel Return Bend designed for shipbuilding and boiler applications, offering superior performance in high-temperature and corrosive environments.

A403 WP321 Return Bend Composition

UNS Designation	C	Mn	P	S	Si	N	Cr	Mo
S32100	0.08	2.00	0.045	0.03	1.00	17.0-19.0	9.0-12.0	...

A403 WP321 Return Bend Strength

The A403 WP321 Return Bend is a high-performance pipe fitting manufactured from WP321 stainless steel per ASTM A403 standard, designed for 180° directional changes in piping systems.

Key Characteristics

Excellent high temperature oxidation and corrosion resistance
Superior mechanical properties and weldability
Titanium addition prevents chromium carbide precipitation, enhancing intergranular corrosion resistance

Strength Parameters

Tensile Strength: ≥515 MPa (75,000 psi)
Yield Strength: ≥205 MPa (30,000 psi)
Elongation: ≥35% (within 50mm standard distance)
Hardness range: HB ≤187 (Brinell hardness)

Strength Influencing Factors

Wall thickness: Increased thickness enhances strength
Manufacturing process: Seamless construction offers higher strength than welded
Temperature: Maintains high strength at elevated temperatures with proper reduction factor consideration

Application Scenarios

High temperature environments: boilers, heat exchangers, steam pipelines
Corrosive media applications: chemical and petrochemical industries
Systems requiring resistance to intergranular corrosion: post-weld piping systems

Strength Verification

Test standards: ASTM A403 and ASME B16.9 compliance
Hydraulic testing for pressure performance validation
Tensile testing for strength verification
Hardness testing for material standard compliance

Material Comparison

vs Carbon Steel: Similar strength with enhanced corrosion and high temperature resistance
vs 304 Stainless Steel: Comparable strength with superior intergranular corrosion resistance
vs 316 Stainless Steel: Similar strength with 316 offering better pitting resistance

Tags:

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return bend pipe fitting

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