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Changzhou Fenglan New Materials Co., Ltd.

Stainless Steel Pipe Fitting

-- Steady & Reliable Manufacturer --

Introduction

Stainless steel pipe fittings provide the corrosion resistance, hygienic properties, and long-term mechanical strength that standard carbon-steel or brass fittings cannot match in demanding environments. Available in grades 304 and 316/316L, they serve critical roles in chemical processing, food production, marine piping, and pharmaceutical distribution where contamination or premature failure are simply not acceptable.

Fenglan stainless steel pipe fittings are manufactured to ISO, DIN, and ASME B16.11 standards. Each fitting is electropolished or passivated to maximize corrosion resistance and facilitate cleaning, and all raw materials are supplied with mill test certificates (MTC) traceable to international standards.

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Specifications

Material Grade AISI 304, 304L, 316, 316L
Fitting Types Elbow (90°/45°), Tee, Reducer, Union, Coupling, Cap, Cross
Thread Standard BSP (G), NPT, DIN 11851 (sanitary)
Pressure Rating Up to 150 bar (size-dependent)
Size Range 1/8" – 4" (DN6 – DN100)
Temperature Range -196°C to +400°C (cryogenic to high-temp)
Surface Finish 2B mill finish, brushed (180/240 grit), electropolished (Ra ≤ 0.8 µm)
Certifications ISO 9001 / PED 2014/68/EU / ATEX available / 3.1 MTC

Applications

  • Food & Beverage Processing: Dairy lines, juice processing, brewing manifolds, and bottling plant pipework requiring hygienic, cleanable connections.
  • Pharmaceutical & Biotech: API manufacturing, WFI (water for injection) distribution, and CIP/SIP loop piping demanding ultra-clean surfaces.
  • Marine & Offshore: Seawater cooling loops, bilge systems, and deck piping aboard vessels and offshore platforms.
  • Chemical & Petrochemical: Acid, solvent, and corrosive fluid distribution lines where carbon steel or brass would corrode rapidly.
  • Cryogenic Systems: Liquid nitrogen and LNG distribution pipework where low temperatures rule out standard carbon-steel fittings.

Advantages

  • Dual-Grade Availability: 304 for general corrosive service; 316L with added molybdenum for superior resistance to chloride pitting and crevice corrosion.
  • Full Traceability: Mill test certificates (EN 10204 3.1) available for all heat batches, supporting pressure-equipment and pharmaceutical documentation requirements.
  • Hygienic Surface Options: Electropolished interior surfaces minimize bacterial adhesion and facilitate effective CIP/SIP cleaning — critical for food and pharma compliance.
  • Extreme Temperature Range: Performs reliably from cryogenic temperatures to above 400°C, accommodating applications that other materials cannot serve.
  • Long Service Life: No protective coating to degrade; the inherent passivation layer of stainless steel regenerates after surface damage, delivering decades of service.

Payment & Shipping

We accept T/T (bank transfer), PayPal, Western Union, and L/C at sight for orders above USD 5,000. A 30% deposit is required upon order confirmation, with the 70% balance paid before shipment. All prices are quoted EXW or FOB Ningbo by default; CIF and other Incoterms are available upon request.

Standard lead time is 15–25 business days for stock items and 30–45 days for customized orders. We ship worldwide via sea, air, or express courier (DHL / FedEx / UPS). Full tracking information and packing lists are provided with every shipment. MOQ and bulk discounts are negotiable — please contact our sales team for a tailored quotation.

Frequently Asked Questions

  • Q: When should I choose 316L over 304 stainless steel fittings?
  • A: Choose 316L wherever chlorides are present — seawater, swimming pool chemicals, or foods with high salt content. The added molybdenum in 316L provides significant additional resistance to pitting and crevice corrosion.
  • Q: What surface finish is required for hygienic or pharmaceutical piping?
  • A: Electropolished finishes (Ra ≤ 0.8 µm or better) are typically specified for pharmaceutical and sterile processing. DIN 11851 sanitary fittings with crevice-free designs are also available for food-grade systems.
  • Q: Are material test certificates included with the order?
  • A: Yes, EN 10204 3.1 mill test certificates are available on request for any batch. These documents confirm chemical composition and mechanical properties are traceable to a specific production heat.
  • Q: Can stainless steel fittings be welded to schedule 40/80 stainless pipe?
  • A: Absolutely. Butt-weld and socket-weld fittings conforming to ASME B16.11 and B16.9 are available for direct welding to standard schedule pipe. Matching grades and low-carbon variants (304L / 316L) prevent sensitization during welding.
  • Q: How should stainless steel fittings be cleaned and maintained?
  • A: Routine cleaning with warm water and mild detergent is sufficient for most applications. Avoid chloride-containing cleaning agents on 304 grade. For passivation after welding or mechanical work, citric acid or nitric acid passivation treatments restore the protective oxide layer.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
ABOUT US
Quality is Our Core Competitiveness
Changzhou Fenglan New Materials Co., Ltd.
Founded in 2010, As China Stainless Steel Pipe Fitting Manufacturers and Stainless Steel Pipe Fitting Company. we are dedicated to manufacturing precision parts for automotive, industrial, and electrical applications. Backed by advanced manufacturing and R&D, we provide high-quality products and trusted solutions to our clients. We provide a wide selection of components to meet diverse industry needs: Electric Shafts: Drive shafts, coil motor shafts, servo motor shafts, water pump motor shafts, industrial motor shafts, and magnetic levitation motor shafts. Hardware: Precision parts for medical equipment, water heater coils, plumbing fittings, and various gas springs. Our commitment is to support our customers with reliable performance and long-term value.
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