The stainless steel seamless pipe is a long strip of steel with a hollow section and no seams around it.
The thicker the wall thickness of the product, the more economical and practical it is, and the thinner the wall thickness, the greater the processing cost.
Let’s focus on the 304/304L and 316/316L materials.
304 / 304L Stainless Steel Seamless Pipe
Characteristic
304 / 304L stainless steel pipe is a strong, tough metal with high corrosion protection, high temperature resistance and the ability to be sterlized. It has high workability and can be manufactured to tight tolerances and welded. These alloys are the most commonly used of the stainless steel alloys and are a cost-effective choice for most applications.
Application
304 / 304L seamless pipe is used for moving liquids or gases in the food processing, diary, petrochemical, chemical, water treatment industries. Welded 304 pipe is used for handrails, posts and poles in marine and outdoor applications.
304/304L Chemical Composition
| Chemical Composition | 201 | 202 | 301 | 304 | 316 | 430 | 304L | 316L |
| C | ≤0.08 | ≤0.06 | ≤0.06 | ≤0.06 | ≤0.08 | ≤0.12 | ≤0.03 | ≤0.03 |
| S | ≤0.02 | ≤0.02 | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 |
| P | ≤0.075 | ≤0.06 | ≤0.045 | ≤0.035 | ≤0.045 | ≤0.04 | ≤0.045 | ≤0.045 |
| Mn | 8.5-10.5 | 7.5-10 | ≤2.0 | ≤2.0 | ≤2.0 | ≤1.0 | ≤2.0 | ≤2.0 |
| Si | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | ≤0.75 | ≤0.75 |
| Cr | 14-15 | 14-16 | 16-18 | 17-20 | 16-18 | 16-18 | 17-20 | 16-18 |
| Ni | 0.8-1.2 | 4-6 | 4-7 | 8-12 | 12-16 | ≤0.05 | 8-12 | 12-16 |
304/304L Physical Property
| Physical Property | 201 | 202 | 301 | 304 | 316 | 430 | 304L | 316L |
| Density | 7.9 | 7.9 | 8 | 8 | 8 | 7.8 | 8 | 8 |
| The Conductivity | 16.3 | 16.3 | 16.3 | 16.3 | 14.2 | 26 | 16.3 | 16.3 |
| Specific Heat(0-100Cp) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 46 | 0.5 | 0.5 |
| Abrasion Resistance | Good | Good | Good | Good | Good | Good | Good | Good |
| Cold Forming | Fair | Good | Good | Good | Good | Good | Good | Good |
| Weldability | Good | Good | Excel | Excel | Excel | Fair | Excel | Excel |
| Melting Point | 1400-1420 | 1400-1420 | 1400-1420 | 1400-1450 | 1370-1400 | 1430-1510 | 1400-1450 | 1370- |
304/304L Stainless Steel Seamless Pipe Sizes
Remarks:
The above dimensions are for reference only. If you do not have the size you would like to know, please feel free to contact us.
| Nominal Size | OD | Wall Thickness(mm) | ||||||||||
| NPS | DN | mm | SCH5S | SCH10S | SCH10 | SCH20 | SCH30 | SCH40S | STD | SCH40 | SCH60 | SCH80S |
| 1/8 | 6 | 10.3 | – | 1.24 | – | – | – | 1.73 | 1.73 | 1.73 | – | 2.41 |
| 1/4 | 8 | 13.7 | – | 1.65 | – | – | – | 2.24 | 2.24 | 2.24 | – | 3.02 |
| 3/8 | 10 | 17.2 | – | 1.65 | – | – | – | 2.31 | 2.31 | 2.31 | – | 3.2 |
| 1/2 | 15 | 21.3 | 1.65 | 2.11 | – | – | – | 2.77 | 2.77 | 2.77 | – | 3.73 |
| 3/4 | 20 | 26.7 | 1.65 | 2.11 | – | – | – | 2.87 | 2.87 | 2.87 | – | 3.91 |
| 1 | 25 | 33.4 | 1.65 | 2.77 | – | – | – | 3.38 | 3.38 | 3.38 | – | 4.55 |
| 1 1/4 | 32 | 42.2 | 1.65 | 2.77 | – | – | – | 3.56 | 3.56 | 3.56 | – | 4.85 |
| 1 1/2 | 40 | 48.3 | 1.65 | 2.77 | – | – | – | 3.68 | 3.68 | 3.68 | – | 5.08 |
| 2 | 50 | 60.3 | 1.65 | 2.77 | – | – | – | 3.91 | 3.91 | 3.91 | – | 5.54 |
| 2 1/2 | 65 | 73 | 2.11 | 3.05 | – | – | – | 5.16 | 5.16 | 5.16 | – | 7.01 |
| 3 | 80 | 88.9 | 2.11 | 3.05 | – | – | – | 5.49 | 5.49 | 5.49 | – | 7.62 |
| 3 1/2 | 90 | 101.6 | 2.11 | 3.05 | – | – | – | 5.74 | 5.74 | 5.74 | – | 8.08 |
| 4 | 100 | 114.3 | 2.11 | 3.05 | – | – | – | 6.02 | 6.02 | 6.02 | – | 8.56 |
| 5 | 125 | 141.3 | 2.77 | 3.4 | – | – | – | 6.55 | 6.55 | 6.55 | – | 9.53 |
| 6 | 150 | 168.3 | 2.77 | 3.4 | – | – | – | 7.11 | 7.11 | 7.11 | – | 10.97 |
| 8 | 200 | 219.1 | 2.77 | 3.76 | – | 6.35 | 7.04 | 8.18 | 8.18 | 8.18 | 10.31 | 12.7 |
| 10 | 250 | 273.1 | 3.4 | 4.19 | – | 6.35 | 7.8 | 9.27 | 9.27 | 9.27 | 12.7 | 12.7 |
| 12 | 300 | 323.9 | 3.96 | 4.57 | – | 6.35 | 8.38 | 9.53 | 9.53 | 10.31 | 14.27 | 12.7 |
| 14 | 350 | 355.6 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | – | 9.53 | 11.13 | 15.09 | – |
| 16 | 400 | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | – | 9.53 | 12.7 | 16.66 | – |
| 18 | 450 | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | – | 9.53 | 14.27 | 19.05 | – |
| 20 | 500 | 508 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | – | 9.53 | 15.09 | 20.62 | – |
| 22 | 550 | 558.8 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | – | 9.53 | – | 22.23 | – |
| 24 | 600 | 609.6 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | – | 9.53 | 17.48 | 24.61 | – |
| 26 | 650 | 660.4 | – | – | 7.92 | 12.7 | – | – | 9.53 | – | – | – |
| 28 | 700 | 711.2 | – | – | 7.92 | 12.7 | 15.88 | – | 9.53 | – | – | – |
| 30 | 750 | 762 | 6.35 | 7.92 | 7.92 | 12.7 | 15.88 | – | 9.53 | – | – | – |
| 32 | 800 | 812.8 | – | – | 7.92 | 12.7 | 15.88 | 17.48 | 9.53 | 17.48 | – | – |
| 34 | 850 | 863.6 | – | – | 7.92 | 12.7 | 15.88 | 17.48 | 9.53 | 17.48 | – | – |
| 36 | 900 | 914.4 | – | – | 7.92 | 12.7 | 15.88 | 19.05 | 9.53 | 19.05 | – | – |
| 38 | 950 | 965.2 | – | – | – | – | – | – | 9.53 | – | – | – |
| 40 | 1000 | 1016 | – | – | – | – | – | – | 9.53 | – | – | – |
304/304L Stainless Steel Seamless Pipe Supplier Quote
Remarks:
Due to our time, we have only collected 5 offers from the supplier 304/304L Stainless Steel Seamless Pipe.
To get the latest 304/304L Stainless Steel Seamless Pipe prices, you are welcome to contact us.
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316 / 316L Stainless Steel Seamless Pipe
Characteristic
316 / 316L stainless steel pipe is used for applications that require the high strength, toughness and workability, coupled with increased corrosion resistance. The alloy contains higher percentages of molybdenum and nickel than 304 stainless pipe, increasing the corrosion resistance and making it an ideal material for applications in aggressive environments.
Application
316 / 316L seamless pipe is used for pressure operations to move liquids or gases in water treatment, waste treatment, petrochemical, chemical and pharmaceutical industries. Structural applications include handrails, poles and support pipe for salt water and corrosive environments. It is not used as often as welded pipe due to its reduced weldability compared to 304 stainless unless its superior corrosion resistance outweighs it decreased weldability.
316/316L Chemical Composition
| 316/316L Chemical Composition | ||
| Element | Type 316 (%) | Type 316L (%) |
| Carbon | 0.08 max. | 0.03 max. |
| Manganese | 2.00 max. | 2.00 max. |
| Phosphorus | 0.045 max. | 0.045 max. |
| Sulfur | 0.03 max. | 0.03 max. |
| Silicon | 0.75 max. | 0.75 max. |
| Chromium | 16.00-18.00 | 16.00-18.00 |
| Nickel | 10.00-14.00 | 10.00-14.00 |
| Molybdenum | 2.00-3.00 | 2.00-3.00 |
| Nitrogen | 0.10 max. | 0.10 max. |
| Iron | Balance | Balance |
316/316L Mechanical properties
| 316/316L Mechanical properties | ||
| Tensile Strength σb (MPa)(min) | 520 | 480 |
| Yield Strength σ0.2 (MPa) (min) | 205 | 177 |
| Elongation δ5 %(min) | 40 | 40 |
| Hardness (Brinell) max | 217 | 217 |
| HB
Hardness(max) HRB |
187 | 187 |
| 90 | 90 | |
| 200 | 200 | |
316/316L Stainless Steel Seamless Pipe Supplier Quote
Remarks:
Due to our time, we have only collected 5 offers from the supplier 316/316L Stainless Steel Seamless Pipe.
To get the latest 316/316L Stainless Steel Seamless Pipe prices, you are welcome to contact us.
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316 / 316L Stainless Steel Seamless Pipe Sizes
Remarks:
The above dimensions are for reference only. If you do not have the size you would like to know, please feel free to contact us.
| Size(Outer Diameter * Thickness) | ||||||
| 630*8 | 159*6 | 108*3 | 60*3.5 | 45*6 | 32*5 | 18*3 |
| 530*8 | 159*5 | 102*6 | 60*3 | 45*5 | 32*4 | 18*2.5 |
| 480*8 | 159*4 | 102*5 | 57*13 | 45*4 | 32*3.5 | 18*2 |
| 426*10 | 159*3 | 102*4 | 57*12 | 45*3.5 | 32*3 | 16*3 |
| 426*7/8 | 140*4.5 | 89*10 | 57*10 | 45*3 | 32*2.5 | 16*2.5 |
| 426*6 | 140*4 | 89*8 | 57*8 | 45*2.5 | 32*2 | 16*2 |
| 377*10 | 133*12 | 89*6 | 57*6 | 45*2 | 30*3 | 14*3 |
| 377*7 | 133*8 | 89*5 | 57*5 | 42*10 | 28*3 | 14*2 |
| 377*8 | 133*6 | 89*4.5 | 57*4.5 | 42*7/8 | 27*5 | 12*2 |
| 377*6 | 133*5 | 89*4 | 57*4 | 42*6 | 27*4 | 12*1 |
| 325*8 | 133*4.5 | 89*3.5 | 57*3.5 | 42*5 | 27*3 | 10*2 |
| 325*6 | 133*4 | 89*3 | 57*3 | 42*4 | 27*2 | 10*1 |
| 273*8 | 133*3 | 89*2.5 | 57*2.5 | 42*3.5 | 25*4 | 8*1 |
| 273*6 | 120*8 | 89*2 | 57*2 | 42*3 | 25*3 | 6*1 |
| 273*5 | 120*6 | 76*8 | 51*10 | 38*6 | 25*2.5*6 | |
| 219*8 | 120*5 | 76*6 | 51*8 | 38*5 | 25*2.5 | |
| 219*6 | 120*4.5 | 76*5 | 51*6 | 38*4 | 25*2*6 | |
| 219*5 | 120*4 | 76*4 | 51*5 | 38*3 | 25*2 | |
| 219*4.5 | 120*3.5 | 76*3.5 | 51*4 | 38*2.5 | 22*6 | |
| 219*4 | 114*8 | 76*3 | 51*3.5 | 38*2 | 22*5 | |
| 194*4.5 | 114*6 | 76*2.5 | 51*3 | 34*7 | 22*4 | |
| 180*5 | 114*5 | 76*2 | 48*10 | 34*6 | 22*3 | |
| 168*8 | 114*4 | 60*12 | 48*8 | 34*5 | 22*2 | |
| 168*6 | 114*3 | 60*10 | 48*6 | 34*4 | 21*3 | |
| 168*5 | 108*8 | 60*8 | 48*5 | 34*3.5 | 20*3 | |
| 168*4 | 108*6 | 60*6 | 48*4 | 34*3 | 20*2 | |
| 166*4.5 | 108*5 | 60*5 | 48*3.5 | 34*2.5 | 19*3 | |
| 162*5 | 108*4.5 | 60*4.5 | 48*3 | 32*8 | 19*2.5 | |
| 159*8 | 108*4 | 60*4 | 45*8 | 32*6 | 19*2 | |
