About this product
Includes generated contents Durable Construction: The Screw Connector Reducing Hex Nipple Pipe Fitting is manufactured using a forged technics, ensuring high strength and durability for long-lasting performance. Multi-Fluid Compatibility: This pipe fitting is suitable for various fluids including nitrogen, hydrogen, oxygen, argon, ammonia, propane, and air and other gases, making it a versatile choice for diverse applications. Wide Pressure Range: The product operates within a working pressure range of 0-3000psig, making it suitable for high-pressure applications. Customization Options: Available in various body shapes such as straight union, 90degree elbow, tee, and cross, this pipe fitting can be customized to meet specific user requirements through OEM or ODM support. Comprehensive Warranty: The product comes with a 1-year warranty, providing peace of mind for customers and ensuring satisfaction with the purchase.
The Characteristics of 316 Stainless Steel |
| 316 stainless steel is a commonly used austenitic stainless steel belonging to the 300 series (with chromium and nickel as the main alloying elements). By adding molybdenum (Mo, approximately 2-3%) and adjusting its composition, it significantly enhances corrosion resistance and high-temperature performance compared to the basic 304 stainless steel. It is widely used in industries such as chemical engineering, marine engineering, food and medical, and energy. The following analyzes its characteristics from multiple dimensions: |
I. Corrosion Resistance
Core Advantages:
- Strong resistance to pitting and crevice corrosion: The addition of molybdenum effectively improves the steel's resistance to pitting corrosion in chloride-ion-containing environments (such as seawater, salt solutions, and acidic conditions), making it more suitable for humid, high-salt, or highly corrosive scenarios (e.g., marine equipment, chemical reaction vessels).
- Excellent acid corrosion resistance: It exhibits better tolerance to organic acids (such as sulfuric acid, phosphoric acid, and acetic acid) and some inorganic acids than 304 stainless steel, making it suitable for acid liquid transportation or storage equipment in the chemical industry.
- Good intergranular corrosion resistance: By controlling the carbon content (typically ≤0.08%, with the extra-low carbon version 316L having ≤0.03% carbon), it reduces the precipitation of chromium carbides at grain boundaries, minimizing the risk of intergranular corrosion. This makes it suitable for welded components or parts operating at high temperatures (450-850°C) for extended periods.
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II. Mechanical Properties
- Balance of Strength and Toughness:
- At room temperature: Tensile strength ≥515 MPa, yield strength ≥205 MPa, elongation ≥40%, hardness ≤200 HB, combining good strength and processing plasticity.
- At high temperatures: It maintains high creep strength and oxidation resistance at 500-600°C, suitable for high-temperature equipment such as boilers and heat exchangers (short-term use temperature up to 800°C, long-term use recommended ≤650°C).
- Workability:
- Can be formed through cold working (e.g., stamping, bending), but has a slightly higher work hardening tendency than 304, requiring attention to stress relief during processing.
- Good weldability, recommended to use matching 316 or 316L electrodes to avoid corrosion issues in the weld heat-affected zone.
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III. Physical Properties
- Density: Approximately 7.98 g/cm³, similar to 304 stainless steel.
- Coefficient of thermal expansion: Approximately (20-100°C), slightly higher than carbon steel, requiring attention to thermal deformation in high-temperature environments.
- Thermal conductivity: Approximately 15 W/(m·K), poor thermal conductivity with lower heat dissipation efficiency than carbon steel, suitable for thermal insulation scenarios.
- Magnetism: Austenitic structure is typically non-magnetic, but cold working may produce a small amount of martensitic transformation, leading to slight magnetism (can be eliminated by solution treatment).
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IV. Surface Treatment and Aesthetics
- Can be surface-treated through processes such as polishing, brushing, and electroplating to achieve mirror, matte, and other effects, combining corrosion resistance with aesthetics. Commonly used in food equipment, medical devices, and decorative engineering.
- The surface oxide film is dense and stable, requiring only simple cleaning for daily maintenance to maintain a smooth finish.
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| Part No. |
P NPT |
Dimensions (mm) |
|
|
|
| |
|
L |
E |
F(inch) |
F(mm) |
| HN - 02N |
1/8 |
25.6 |
4.8 |
7/16 |
11.11 |
| HN - 04N |
1/4 |
35.6 |
7.1 |
9/16 |
14.28 |
| HN - 06N |
3/8 |
36.3 |
9.6 |
11/16 |
17.46 |
| HN - 08N |
1/2 |
46.7 |
11.9 |
7/8 |
22.22 |
| HN - 12N |
3/4 |
46.7 |
15.7 |
1 - 1/16 |
26.98 |
| HN - 16N |
1 |
58.9 |
22.4 |
1 - 3/8 |
34.92 |
Q1. What products can you provide? Re: Compression fittings(connections), hydraulic fittings, tube fittings, ball valves, needle valves etc.
Q2. Can you make the products based on our requests, such as size, connection, thread, shape and so on? Re: Yes, We have experienced techincal team and can design and produce the products according to your requirements.
Q3. What about the quality and price? Re: Quality is very good. Price is not low but pretty reasonable at this quality level.
Q4. Can you provide samples to test? For free? Re: Of course, you can take several to test firstly. Your side shall bear the cost due to its high value. Q5. Can you operate OEM orders? Re: Yes, OEM is supported though we also have our own brand named AFK.
Q6. What payment methods for chose? Re: For small order, 100% Paypal, Western Union and T/T in advance. For bulk purchase, 50%T/T, Western Union, L/C as deposit, and 50% balance paid before shipment.
Q7. How about the lead time? Re: Usually, delivery time is 5-7 working days for sample, 7-10 working days for mass production.
Q8. How will you ship the goods? Re: For small amount, international express is used mostly such as DHL, FedEx, UPS, TNT. For large amount, by air or by sea. Besides, you also can have your own forwarder pick up the goods and arrange the shipment.
Buying Guide My dear friend,
if you wanna know more information about our products such as dimension size and drawing, kindly send us inquiry or email, we will reply you within 24 hours! Please provide the following parameters in your inquiry as many as possible: 1. Model No. . Or describe shape: straight union, 90° elbow, T(3 way), cross(4 way) 2. Connection: NPT male threaded, NPT female threaded, ferrule, welded, tube, hose barb. 3. Material: SS316, SS304 4. Fluid: what fluid is used for? Gas,oil? 5. Actual working pressure 6. Quantity Please advise the model no. or describe what kind of fittings do you need, then we can send you the exact model and quotation. For example, A. UT, 1/2" tube ferrule, SS316, 100pcs.
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