304 Stainless Steel Fittings – The World’s Most Versatile Food-Grade Piping Solution
For more than 70 years, 304 Stainless Steel Fittings have set the global benchmark for corrosion-resistant, food-safe, and cost-effective piping assemblies. The balanced 18 % chromium / 8 % nickel chemistry delivers excellent resistance to atmospheric and mild chemical attack, while the austenitic structure provides outstanding formability and weldability without post-weld annealing. From brewery CIP lines and dairy pasteurizers to petrochemical cooling-water loops and architectural handrails, 304 Stainless Steel Fittings offer the lowest life-cycle cost of any stainless grade in general-service applications—making them the first choice for engineers, contractors, and stockists worldwide.
304 Stainless Steel Ball Valves Sanitary Fittings – 3A & FDA Compliant, Mirror Polished Ra≤0.4μm
Key Features & Benefits
- Excellent corrosion resistance in atmospheric, potable-water, and mild chemical environments
- Food-grade safety – meets FDA, NSF/ANSI 61, EU 1935/2004, and 3A sanitary standards
- Superior weldability by TIG, MIG, laser, and orbital processes; post-weld anneal not required for most services
- Wide temperature range: –196 °C to 800 °C continuous service
- Mirror-polished options down to Ra ≤0.4 µm for ultra-hygienic applications
- 100 % recyclable, supports LEED v4 credits
- Full compliance with ASTM A182, A403, A351, ASME B16.11, B16.9, EN 10253-4
Technical Specifications
Table 1 – Chemical & Mechanical Properties (ASTM A403 WP304/304L)
| Property | 304 | 304L |
|---|---|---|
| Cr % | 18.0–20.0 | 18.0–20.0 |
| Ni % | 8.0–10.5 | 8.0–10.5 |
| C % | ≤0.08 | ≤0.03 |
| Tensile MPa | ≥515 | ≥485 |
| Yield MPa (0.2 %) | ≥205 | ≥170 |
| Elongation % | ≥40 | ≥40 |
| Hardness HRB | ≤90 | ≤90 |
Table 2 – Pressure Ratings (common classes)
| Class/Sch | 150 lb Threaded | 3000 lb Socket-Weld | Butt-Weld Sch 40S |
|---|---|---|---|
| 1/2" | 1,370 psi @ 20 °C | 3,000 psi @ 20 °C | 2,850 psi @ 20 °C |
| 1" | 1,120 psi @ 20 °C | 3,000 psi @ 20 °C | 2,430 psi @ 20 °C |
| 2" | 920 psi @ 20 °C | 3,000 psi @ 20 °C | 2,000 psi @ 20 °C |
Derating factors apply above 100 °C – see ASME B16.5 for full tables.
Product Range Overview
| Fitting Type | Size Range | Standards | Finish Options |
|---|---|---|---|
| 304 stainless steel threaded fittings (NPT/BSPT) | 1/8"–4" | ASME B16.11, ISO 7-1 | Pickled, polished |
| 304 stainless steel compression fittings | 1/8"–2" | DIN 2353, ISO 8434-1 | Bright annealed |
| 304 stainless steel ball valves sanitary fittings (tri-clamp, 3A) | ½"–6" | 3A, FDA, ASTM A351 CF8 | Mirror Ra ≤0.4 µm |
| Butt-weld elbows, tees, reducers, caps | ½"–48" | ASTM A403, ASME B16.9 | Pickled, 180G |
| Socket-weld & hose barb fittings | ¼"–4" | ASME B16.11 | Pickled |
Detailed Product Types & Market Info
As one of the largest manufacturers and stocking distributors (with Houston, USA warehouse for 304 stainless steel fittings houston), we operate a 200-ton/month automated forging and CNC finishing line dedicated to 304 stainless steel fittings. Our 80 000 m² facility keeps 15 000 t of ready stock, ensuring immediate availability for 304 stainless steel fittings houston and global distributors. Whether you need one box of 304 stainless steel npt fittings or a full container of 304 stainless steel compression fittings, our mill-direct China pricing plus same-day shipping from USA gives you the competitive edge. Contact our export team today for the most updated quotation and downloadable 3.1 MTC.
Specialty products include complete stainless steel 304 tube fittings – compression, push-in, and weld-in configurations manufactured under DIN 2353 and ISO 8434-1.
304 Stainless Steel Fittings Houston – Same-Day Shipping from USA Local Stock for NPT & Compression Range
Main Applications
- Food & beverage: brewery piping, CIP lines, dairy pasteurizers
- Pharmaceutical: WFI, clean steam, sterile vessels
- Chemical: low-pressure acid lines, cooling water
- Water treatment: RO headers, desalination piping
- HVAC: chilled water, hot-water loops
- Marine: handrails, bollards, coastal canopies
- Architectural: polished handrails, elevator sills, column covers
Complete Range: 304 Stainless Steel Threaded Fittings, Compression Fittings & Stainless Steel 304 Tube Fittings
Why Choose Us – Mill-Direct + Houston Stock
- ISO 9001 & PED 2014/68/EU certified – EN 10204 3.1 MTC supplied
- 200-ton monthly forging capacity – 5-day lead time for standard items
- 304 stainless steel fittings houston warehouse – same-day pickup or LTL shipping
- In-house polishing & electropolishing – Ra ≤0.4 µm for sanitary grades
- Third-party inspection: SGS, TÜV, BV – accepted by European end-users
- Real-time stock portal – 24/7 visibility for 304 stainless steel npt fittings and 304 stainless steel ball valves sanitary fittings
304 vs 316 vs 304L vs 316L Fittings Comparison
| Grade | Cr % | Ni % | Mo % | Max Cl- ppm | Relative Cost | Best Use |
|---|---|---|---|---|---|---|
| 304 | 18 | 8 | 0 | 200 | 1.0× | General service |
| 304L | 18 | 8 | 0 | 200 | 1.02× | Welded assemblies |
| 316 | 16 | 10 | 2–3 | 1000 | 1.35× | Marine/chloride |
| 316L | 16 | 10 | 2–3 | 1000 | 1.37× | Welded chloride |
FAQ – 304 Stainless Steel Fittings
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What is the price difference between 304 and 316 fittings?
Mill-direct 304 is ~25 % cheaper than 316; our live portal updates daily at 08:00 CST. -
Are your 304 stainless steel ball valves sanitary fittings 3A certified?
Yes, tri-clamp and ball valves carry 3A symbol and FDA compliance – certificate supplied with each batch. -
Compression vs 304 stainless steel npt fittings – which to choose?
Use compression for vibration-free, high-pressure tubing; NPT for general threaded piping. -
Do you stock 304 stainless steel fittings houston?
Yes, 3 000 t local inventory – same-day pickup or LTL shipping within Texas and neighboring states. -
What is the minimum order quantity?
One carton for stock items; full container (≈20 t) for mill-direct custom forgings. -
How fast can you deliver stainless steel 304 tube fittings?
7 days production + 3–5 days ocean freight to Asian ports; 10 days to EU/US warehouses. -
Which certificates accompany the shipment?
EN 10204 3.1/3.2 MTC, ISO 9001, PED 2014/68/EU, and third-party inspection (SGS/TÜV/BV). -
Do you supply polished or electropolished finishes?
Yes, mirror Ra ≤0.4 µm for sanitary 304 stainless steel ball valves sanitary fittings; EP available on request.
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Stop paying trader margins. Contact the largest 304 stainless steel fittings producer today for the most competitive price, immediate access to 304 stainless steel fittings houston stock, and same-day shipping of any 304 stainless steel npt fittings, 304 stainless steel compression fittings, or stainless steel 304 tube fittings.