180 Degree Seamless Stainless Steel Butt Weld Elbow, Industrial Pipe Fitting

180-degree seamless stainless steel butt-weld elbow for industrial piping systems

Our 180 degree seamless stainless steel butt weld elbow is a critical industrial pipe fitting for changing fluid direction by 180° in piping systems. Made from 304 / 316L stainless steel, manufactured in accordance with ASME B16.9 & ASTM A403. It features uniform wall thickness, high pressure resistance, stable performance and excellent corrosion resistance. Widely used in petroleum, natural gas, chemical industry, water treatment, power and ship pipeline projects.

Specifications of the 180° Seamless Stainless Steel Butt Weld Elbow, Industrial Pipe Fitting

Manufacturing Capability and Material Range for the Industrial Welded Elbow

Key Features 

· Full in-house manufacturing with mandrel cold push forming line and complete polishing & finishing equipment

· 100% PMI spectral inspection per batch, full material traceability to original mill heat number

· Dual product lines: industrial heavy-duty pipe fittings + sanitary high-purity hygienic fittings

· Mature special alloy processing technology for severe corrosion & high-temperature working conditions

· Seamless one-piece forming, uniform wall thickness, compatible with orbital welding

· Compliance with full international standards, supported by complete authoritative certifications

· Multiple surface finish options: mechanical polish, mirror polish, electropolishing for sanitary grades

 Manufacturing Process 

· Raw Tube PMI Spectral & Dimension Inspection

·Precision Cutting & Sizing

· Mandrel Cold Push Forming (one-piece seamless forming)

·End Trimming & Beveling

· Internal & External Polishing (mechanical / mirror / electropolishing)

· Degreasing & High-purity Cleaning (for sanitary grade)

· Semi-finishing Dimensional & Surface Inspection

·Final Quality Control (size, roughness, leakage test)

· Clean Packaging & Delivery

Process Steps

Raw tube PMI and dimension inspection → precision cutting and sizing → mandrel cold push forming → end trimming and beveling → internal and external polishing → degreasing and high-purity cleaning → dimensional and surface inspection → final QC (size, roughness, leakage test) → clean packaging.

Applications

· Dairy: milk, yogurt and cream processing

· Food and beverage: juice, sauce and edible oil

· Brewery: beer and wine fermentation and filling

· Pharmaceutical and biotech: purified water, WFI and liquid medicine

· Cosmetic and personal care: lotion, cream and essence

· Pure water and water treatment: ultrapure water piping

Certifications

D2000 Certificate	PED Certificate	PED Certificate
TS Pressure Pipe Element Manufacturing License	EAC Certificate	EAC Certificate
ISO 9001 Quality Management System	ISO 14001 Environmental Management System	ISO 45001 Occupational Health & Safety System

Quality Control 

· Material Verification: 100% PMI spectral analysis, chemical composition fully traceable to original mill heat number

· Dimensional Control: High-precision inspection of diameter, wall thickness, bending angle and end flatness

· Surface & Cleanliness: Surface roughness (Ra) test; defect inspection; sanitary grade cleanliness test

· Performance Testing: Sampling pressure & leakage test; ovality & concentricity check

· Third-party Inspection: SGS, BV, TUV witnessed inspection supported

 Why Choose Us 

· 16+ Years Professional Manufacturer (Founded in 2010, based in Wenzhou, China)

· Full In-house Production Chain: Forming → Polishing → Cleaning → Testing

· Leading Special Alloy Technology: Mature processing of nickel-based, Hastelloy, super austenitic and super duplex steel pipe fittings

· Dual Product System: Industrial heavy-duty pipe fittings + Sanitary high-purity hygienic fittings

· Complete Authoritative Certifications: TS pressure pipe license, ISO 9001/14001/45001, CE-PED, AD2000, EAC

· Full Engineering Support: Working condition analysis, material selection, custom piping solution design

· New Energy Layout: Professional piping solutions for data center liquid cooling, hydrogen energy and energy storage

· Stable & Reliable Delivery: exported to 30+ countries

Available Materials 

· Standard Stainless Steel: ASTM A270 / A312 TP304/TP304L, TP316/TP316L, TP321, TP347, 904L

· Super Austenitic & Duplex Steel: Super austenitic steel, SAF 2205, SAF 2507 super duplex steel

· Nickel & Special Alloys: Inconel 600/625/690, Incoloy 800/825/800H, Monel 400, Hastelloy series

· Custom special alloy grades available upon request

 Custom Service 

· Full custom production per customer drawings, samples or project requirements

· Custom dimensions, bending radius, wall thickness, bevel type and surface finish

· Special material customization: special alloys, sanitary grade materials

· Engineering Support: Working condition analysis, material selection, piping solution design

· Laser marking: logo, part number, batch number, project identification

· Custom export packaging and special protection requirements

· OEM & ODM services

 Packaging & Shipping 

· Packaging: Export-special wooden cases

· Marking: Custom shipping marks, batch number and material traceability marking

· Shipping: FCL/LCL sea freight, air freight, international express delivery

· Documents: Full set of export documents, MTR reports, certificates and packing lists provided

FAQ ：

What standards do your sanitary elbows meet?

They meet ASTM A270, DIN 11850 and ISO 2037 and are compatible with 3A and FDA requirements.

What surface finishes are available?

Mirror polish Ra ≤0.8μm is standard; electropolishing to Ra ≤0.2μm is available for high-purity pharmaceutical and ultrapure water lines.

What bending radius options do you offer?

R=1.5D long radius is standard; R=1D short radius and custom radii are available per drawing.

Can you provide an MTR with each batch?

Yes. Each batch is supplied with a material test report, PMI verification and traceability to the mill heat number.

What is the lead time for custom sanitary elbows?

8-10 working days after drawing confirmation; standard sizes held in stock can ship within 3 working days.

Do you support small sample orders?

Yes, sample orders and small trial batches are supported.

What other sanitary fittings do you supply?

Elbows, tees, reducers, end caps, clamps, valves and tubing are available.