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China 321 316L Stainless Steel Pipe Suppliers - High-Quality Factory Manufacturing for Fluid Transport Applications

Product Description

Our stainless steel pipes are expertly manufactured in China, providing an ideal solution for piping systems designed to transport fluids and gases. As a reliable supplier, we utilize high-quality steel alloys that include nickel and chromium, ensuring our stainless steel offers exceptional corrosion resistance. These pipes are designed to resist oxidation, making them a low-maintenance option suitable for high-temperature and chemical environments. Additionally, their ease of cleaning and sanitization makes our stainless steel pipes a preferred choice for food, beverage, and pharmaceutical applications. Partner with our factory for premium stainless steel pipe solutions that meet your diverse needs.

    Product Description

    "Quality is our culture."
    Welcome know more about our company.
    • 15+ rich experience in stainless steel sheet, coil and all kinds of bars;
    • The company was awarded the gold product by Ali and verified by SGS certification;
    • Competitive prices with customer-oriented service;
    • Exported to more than 100 countries;
    • Fast delivery in 5 days.
    Any questions, pls feel free to let me know and I will reply you in 2 hours; Looking forward to your reply!
    Type 321 316L stainless steel pipe
    Material 304 304L 316 316L 316Ti 321 309S 310S 317L 347H 2205 2507 904L 201
    Thickness 1.73mm-59.54mm
    Outer diameter 10.3mm-1219.0mm
    Length 6m or as customer's requirement
    Finish Polished, Pickled, hairline, mirror
    Shape Round, square, rectangular, oval
    Technology Seamless, weld
    Standard JIS, AISI, ASTM, GB, DIN, EN, etc.
    MOQ 1 Ton
    Application Decoration, industry, etc.
    Certificate SGS
    Packaging Standard exporting packing

    Product Specifications

    Specifications of 321 316L stainless steel pipe (Round)
    Standard 0.6 0.7 0.8 0.9 1 1.2 1.5 2 2.5 3 3.5 4 4.5
    Actual 0.32 0.4 0.5 0.6 0.7 0.9 1.1 1.4 1.9 2.4 2.9 3.4 3.9
    Φ 12.3 0.57 0.71 0.88 1.05 1.21 1.53 1.84
    Φ 12.7 0.59 0.74 0.91 1.09 1.26 1.91 1.91
    Φ 15.3 0.72 0.89 1.11 1.32 1.53 2.33 2.33
    Φ 16 0.75 0.93 1.16 1.38 1.6 2.45 2.45 3.06
    Φ 17.2 0.81 1 1.25 1.49 1.73 2.19 2.65 3.31
    Φ 18 0.85 1.05 1.31 1.56 1.81 2.3 2.78 3.47
    Φ 19 0.89 1.11 1.38 1.65 1.91 2.43 2.94 3.68 4.86
    Φ 20.2 0.95 1.18 1.47 1.76 2.04 2.6 3.14 3.93 5.2
    Φ 22 1.04 1.29 1.61 1.92 2.23 2.84 3.43 4.31 5.71
    Φ 25 1.18 1.47 1.83 2.19 2.54 3.24 3.93 4.94 6.56
    Φ 28 1.32 1.65 2.06 2.46 2.86 3.65 4.42 5.57 7.41
    Φ 29.2 1.38 1.72 2.14 2.57 2.98 3.81 4.62 5.82 7.75
    Φ 31.8 1.51 1.88 2.34 2.8 3.25 4.16 5.04 6.36 8.49 10.55 12.53
    Φ 35.8 1.7 2.12 2.64 3.16 3.67 4.69 5.7 7.2 9.63 11.98 14.26
    Φ 38 1.8 2.25 2.8 3.35 3.9 4.99 6.07 7.66 10.25 12.77 15.22
    Φ 42 2.49 3.1 3.71 4.32 5.52 6.72 8.5 11.39 14.21 16.95
    Φ 48 2.85 3.55 4.25 4.95 6.34 7.71 9.75 13.09 16.36 19.55
    Φ 50.8 3.01 3.76 4.5 5.24 6.71 8.17 10.34 13.89 17.36 20.76 24.09
    Φ 60 3.56 4.45 5.33 6.2 7.95 9.68 12.26 16.5 20.66 24.75 28.77
    Φ 63 4.67 5.6 6.52 8.35 10.18 12.89 17.35 21.74 26.05 30.29
    Φ 70 6.22 7.25 9.29 11.32 14.36 19.34 24.25 29.09 33.85
    Φ 76 6.76 7.88 10.1 12.31 15.61 21.04 26.4 31.69 36.9 42.03
    Φ 80 7.12 8.3 10.64 12.97 16.45 22.18 27.84 33.42 38.93 44.36
    Φ 85 7.57 8.82 11.31 13.79 17.49 23.6 29.63 35.59 41.47 47.28
    Φ 88.9 7.92 9.23 11.84 14.43 18.31 24.71 31.03 37.28 43.45 49.55
    Φ 101.6 9.06 10.56 13.55 16.52 20.97 28.32 35.59 42.78 49.91 56.96
    Φ 108 11.23 14.41 17.58 22.31 30.13 37.88 45.56 53.16 60.69
    Φ 114 11.86 15.21 18.56 23.56 31.84 40.04 48.16 56.21 64.18
    Φ 127 16.96 20.7 26.28 35.53 44.7 53.8 62.82 71.76
    Φ 133 17.77 21.69 27.54 37.23 46.85 56.4 65.87 75.26
    Φ 141 18.85 23 29.21 39.51 49.72 59.86 69.93 79.92
    Φ 159 25.96 32.98 44.62 56.18 67.67 79.08 90.42
    Φ 168 34.86 47.17 59.41 71.57 83.65 95.66
    Φ 219 45.54 61.66 77.7 93.68 109.57 125.39
    Standard 0.6 0.7 0.8 0.9 1 1.2 1.5 2 2.5 3 3.5 4 4.5
    Actual 0.32 0.4 0.5 0.6 0.7 0.9 1.1 1.4 1.9 2.4 2.9 3.4 3.9
    Specifications of 321 316L stainless steel pipe (Square)
    Standard 0.6 0.7 0.8 0.9 1 1.2 1.5 2 2.5 3 3.5 4 4.5
    Actual 0.32 0.4 0.5 0.6 0.7 0.9 1.1 1.4 1.9 2.4 2.9 3.4 3.9
    Φ 10 × 10 0.59 0.74 0.91 1.09 1.26 1.59 1.91
    Φ 12.7 × 12.7 0.76 0.69 1.17 1.4 1.62 2.06 2.48
    Φ 15 × 15 0.9 1.12 1.39 1.66 1.93 2.45 2.96
    Φ 19 × 19 1.14 1.42 1.77 2.12 2.46 3.13 3.8 4.77 6.33
    Φ 20 × 20 1.2 1.5 1.87 2.23 2.59 3.31 4.01 5.04 6.69
    Φ 22 × 22 1.32 1.65 2.06 2.46 2.86 3.65 4.43 5.57 7.42
    Φ 25 × 25 1.51 1.88 2.34 2.8 3.26 4.16 5.06 6.37 8.5
    Φ 28 × 28 1.69 2.11 2.63 3.14 3.66 4.68 5.68 7.17 9.59 11.93
    Φ 30 × 30 1.81 2.26 2.82 3.37 3.92 5.02 6.1 7.7 10.31 12.84
    Φ 36 × 36 2.72 3.39 4.06 4.72 6.05 7.36 9.3 12.48 15.58
    Φ 38 × 38 2.87 3.58 4.29 4.99 6.39 7.78 9.83 13.2 16.5 19.72 22.86

    Chemical Component

    Grade C Si Mn P S Ni Cr Mo
    201 ≤0.15 ≤0.75 5.5-7.5 ≤0.06 ≤0.03 3.5-5.5 16.0-18.0 -
    202 ≤0.15 ≤1.0 7.5-10.0 ≤0.06 ≤0.03 4.-6.0 17.0-19.0 -
    301 ≤0.15 ≤1.0 ≤2.0 ≤0.045 ≤0.03 6.0-8.0 16.0-18.0 -
    302 ≤0.15 ≤1.0 ≤2.0 ≤0.035 ≤0.03 8.0-10.0 17.0-19.0 -
    304 ≤0.08 ≤1.0 ≤2.0 ≤0.045 ≤0.03 8.0-10.5 18.0-20.0
    304L ≤0.03 ≤1.0 ≤2.0 ≤0.035 ≤0.03 9.0-13.0 18.0-20.0
    309S ≤0.08 ≤1.0 ≤2.0 ≤0.045 ≤0.03 12.0-15.0 22.0-24.0
    310S ≤0.08 ≤1.5 ≤2.0 ≤0.035 ≤0.03 19.0-22.0 24.0-26.0
    316 ≤0.08 ≤1.0 ≤2.0 ≤0.045 ≤0.03 10.0-14.0 16.0-18.0 2.0-3.0
    316L ≤0.03 ≤1.0 ≤2.0 ≤0.045 ≤0.03 12.0-15.0 16.0-18.0 2.0-3.0
    321 ≤0.08 ≤1.0 ≤2.0 ≤0.035 ≤0.03 9.0-13.0 17.0-19.0 -
    904L ≤2.0 ≤0.045 ≤1.0 ≤0.035 - 23.0-28.0 19.0-23.0 4.0-5.0
    2205 ≤0.03 ≤1.0 ≤2.0 ≤0.030 ≤0.02 4.5-6.5 22.0-23.0 3.0-3.5
    2507 ≤0.03 ≤0.80 ≤1.2 ≤0.035 ≤0.02 6.0-8.0 24.0-26.0 3.0-5.0
    2520 ≤0.08 ≤1.5 ≤2.0 ≤0.045 ≤0.03 0.19-0.22 0.24-0.26 -
    410 ≤0.15 ≤1.0 ≤1.0 ≤0.035 ≤0.03 - 11.5-13.5 -
    430 0.12 ≤0.75 ≤1.0 ≤0.040 ≤0.03 ≤0.60 16.0-18.0 -

    Application

    Stainless steel has unique characteristics such as unique strength, high abrasion resistance, superior anti-corrosion performance and resistance to rust. Therefore, it is widely used in industry, food machinery, mechanical and electrical industry, household appliance industry, home decoration and finishing industry. The development prospect of stainless steel application will be more and more broad, but the development of stainless steel application largely depends on the development of its surface treatment technology.

    Recommend Products

    Product Testing

    Carbon (C): 1. Improve the deformation resistance and tensile strength of the blade; 2. Enhance hardness and improve wear resistance.
    Cr (Cr): 1. Enhance hardness, tensile strength and toughness; 2. Anti-wear and corrosion.
    Cobalt (CO): 1. Increase the hardness and strength so that it can withstand high temperature quenching; 2. Used to enhance certain individual properties of other elements in more complex alloys.
    Copper (Cu): 1. Enhance corrosion resistance; 2. Enhance wear resistance.
    Manganese (Mn): 1. Increase the quenchability, wear resistance and tensile strength; 2. Removal of oxygen from molten metal by separate oxidation and separate vaporization; 3. When added in large quantities, the hardness is enhanced, but the brittleness is improved.
    Molybdenum (Mo): 1. Enhanced strength, hardness, quenchability and toughness; 2. Improve machinability and corrosion resistance.
    Nickel (Ni): 1. Enhance strength, hardness and corrosion resistance.
    Phosphorus (P): 1. Enhanced strength, machinability and hardness; 2. When the concentration is too large, it is easy to crack.
    Silicon (Si): 1. Enhanced ductility; 2. Increase the tensile strength; 3. Removal of oxygen from molten metal by separate oxidation and separate vaporization.
    Sulphur (S): Small amount used to improve machinability.
    Tungsten (W): Increases strength, hardness and toughness.
    Vanadium (V): Increases strength, hardness and seismic resistance.

    Frequently Asked Questions

    What are the main grades of stainless steel pipes you offer?
    We offer a wide range of materials including 304, 304L, 316, 316L, 316Ti, 321, 309S, 310S, 317L, 347H, 2205, 2507, 904L, and 201.
    What size ranges are available for your 321 and 316L stainless steel pipes?
    Our pipes are available in thicknesses from 1.73mm to 59.54mm, and outer diameters from 10.3mm to 1219.0mm. Standard length is 6m, or customized to customer requirements.
    What are the primary applications for these stainless steel pipes?
    They are extensively used in decoration, industrial piping, food machinery, mechanical and electrical applications, household appliances, and home finishing.
    How does the addition of Chromium (Cr) and Nickel (Ni) affect the pipes?
    Chromium enhances hardness, tensile strength, toughness, and anti-corrosion properties. Nickel further improves overall strength, hardness, and corrosion resistance under demanding environments.
    What certifications and quality assurances do your products have?
    Our company has over 15 years of rich experience, is verified by SGS certification, and has been awarded the gold product status by Alibaba.

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