Stainless Steel 304 Butt Weld Fittings are premium-quality, corrosion-resistant piping components designed to provide durable and leak-proof connections in a wide array of industrial and sanitary applications. As the most versatile and widely used stainless steel grade, SS304 offers an excellent combination of strength, formability, and resistance to a broad range of corrosive environments. This comprehensive range includes Elbows, Tees, Reducers (Concentric and Eccentric), and Caps. Shanxi Xinshunda Flange Manufacturing Co., Ltd. manufactures these fittings in strict compliance with international standards such as ASTM A403 and ASME B16.9, utilizing high-purity raw materials and advanced forming technologies. Our SS304 fittings guarantee superior weldability, long-lasting durability, and optimal flow characteristics, making them a cost-effective and reliable choice for your piping infrastructure. Comprehensive Mill Test Reports and certifications are provided with every shipment.
Production Details
Our ASTM A193 bolts are produced using state-of-the-art CNC machinery to ensure every thread and hexagonal head meets precise engineering drawings. The raw materials undergo strict chemical composition analysis before entering the production line. Each fastener is subjected to rigorous surface inspection to ensure the absence of defects such as cracks, laps, or improper coating. The dimensional accuracy is verified using advanced measuring instruments, ensuring a perfect match with your mating flanges.
Product Properties and Application
Product Properties
Excellent Corrosion Resistance: Contains a minimum of 18% chromium and 8% nickel, providing outstanding resistance to oxidation and corrosion in various atmospheric and mild chemical environments.
Superior Weldability: The low carbon content (typically ≤ 0.08%) minimizes carbide precipitation during welding, ensuring the welded joint retains its corrosion resistance without the need for post-weld annealing.
High Strength-to-Weight Ratio: Offers robust mechanical strength while being lighter than carbon steel alternatives, reducing the overall load on support structures.
Hygienic & Easy to Clean: The smooth, non-porous surface finish inhibits bacterial growth and allows for easy cleaning, making it ideal for sanitary applications.
Application
Stainless Steel 304 Butt Weld Fittings are extensively used in industries where both corrosion resistance and hygiene are paramount. They are the standard choice for Food and Beverage Processing, Dairy and Brewery Plants, and Pharmaceutical Manufacturing. Additionally, they are widely utilized in Water Treatment and Desalination Plants, Chemical Processing, Heat Exchangers, and Architectural Structures where aesthetic appeal and weather resistance are required.
|
Parameter |
Specification |
|
Standard |
ASME/ANSI B16.9, ASTM A403, MSS SP-43, DIN 2605, JIS B2312 |
|
Product Type |
Elbow (45°, 90°, 180°), Tee (Equal/Reducing), Reducer (Con/Ecc), Cap, Stub End |
|
Material |
Stainless Steel 304 (ASTM A403 WP304, EN 1.4301, UNS S30400) |
|
Size Range |
1/2" to 48" (DN15 to DN1200) |
|
Wall Thickness |
SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160, XXS |
|
End Connection |
Beveled End (BW) prepared for butt welding |
|
Manufacturing Method |
Seamless / Welded (ERW) |
|
Surface Finish |
Pickled, Passivated, Sand Blasted, 180 Grit Polished, 600 Grit Mirrored |
|
Packing |
Plywood Cases, Wooden Pallets, or Custom Export Packaging |
Physical Properties
|
Property |
Value (SS 304) |
|
Tensile Strength |
≥ 515 MPa (75,000 psi) |
|
Yield Strength |
≥ 205 MPa (30,000 psi) |
|
Elongation |
≥ 35% |
|
Hardness |
≤ 201 HB (Brinell) |
|
Corrosion Resistance |
Excellent (in mildly corrosive environments) |
QA & QC
At Shanxi Xinshunda, we implement a rigorous Quality Control system for our Stainless Steel 304 fittings. Every fitting undergoes strict dimensional inspections using calibrated templates and ultrasonic thickness gauges. We perform Hydrostatic or Pneumatic pressure tests to verify leak tightness and structural integrity. Surface defects are checked via Dye Penetrant Testing (DPT) to ensure a flawless finish. Material composition is verified through PMI (Positive Material Identification) spectroscopic analysis, and Mill Test Certificates (EN 10204 3.1) are provided with every shipment.
Packing, Storage, Handling and Transportation
To protect the product during transit, each fitting is carefully cleaned, pickled, and passivated. The beveled ends are coated with rust-preventative oil or capped with plastic protectors. Smaller fittings are individually wrapped in plastic bags or bubble wrap, while larger components are stacked and securely fixed on strong plywood pallets. For international shipping, products are packed in sturdy plywood cases with ample cushioning to prevent movement and surface scratches. Each package is clearly labeled with the size, material, quantity, and batch number. Store in a dry, well-ventilated area to prevent contamination.
Strategic Partners with Shanxi Xinshunda
With over 15 years of manufacturing expertise, Shanxi Xinshunda Flange Manufacturing Co., Ltd. has proudly supplied premium industrial piping components to 3,800+ global customers across 70+ countries. We are committed to delivering robust and reliable solutions that ensure the safety and efficiency of your infrastructure projects worldwide, making us your trusted partner in the global energy and processing industries.
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