316 Stainless Steel Pipe
- Standard
- Technical Treatment
- Wall Thickness
- Outer Diameter
- Surface Finish
- Welding Way
- Welding Seam Test
- AISI, ASTM, EN, DIN, JIS
- Cold Rolled, Hot Rolled
- SCH5S – SCH80S
- 1/8" to 80", DN6-DN2000, 10.3-2000mm
- Polishing, Annealing, Pickling, Bright
- PLASMA+TIG
- Hydrostatic Test/UT/PT/RT
316 stainless steel is a high-performance austenitic stainless steel pipe known for its excellent corrosion resistance, particularly in harsh environments.
- TUV ISO 9001:2015, PED 2014/68/EU, and AD 2000-WO
- DIN EN ISO 9606-1, DIN EN ISO 14732 Welder Certificate
- EN ISO 9712 NDT Personnel Certificate
- EN10204.3.1MTC
- EN ISO 15613 WPQR
- AISI
- UNS
- JIS
- EN/DIN Symbolical
- EN/DIN Numerical
- 316
- S31600
- SUS 316
- X5CrNiMo17-12-2
- 1.4401
| Element | 316 (S31600) | Primary Role |
|---|---|---|
| Carbon (C) | ≤0.08 | Improves strength but harms weldability (316L avoids carbide precipitation) |
| Chromium (Cr) | 16.0–18.0 | Forms protective Cr₂O₃ oxide layer (corrosion resistance) |
| Nickel (Ni) | 10.0–14.0 | Stabilizes austenitic structure, enhances ductility/formability |
| Molybdenum (Mo) | 2.0–3.0 | Resists pitting/crevice corrosion (critical for chlorides/acids) |
| Manganese (Mn) | ≤2.0 | Improves hot workability and strength |
| Silicon (Si) | ≤0.75 | Deoxidizer during steelmaking |
| Phosphorus (P) | ≤0.045 | Impurity (reduces toughness if excessive) |
| Sulfur (S) | ≤0.03 | Improves machinability but may reduce corrosion resistance |
| Nitrogen (N) | ≤0.10 | Enhances strength and corrosion resistance |
| Iron (Fe) | Balance | Base metal |
| Nominal Size (Tube OD) | Wall Thickness, SCHEDULE | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| DN | NPS(inch) | mm | 5S | 10S | 40S | STD | 80S | |||
| 6 | 1∕8" | 10.3 | – | 1.24 | 1.73 | 1.73 | 2.41 | |||
| 8 | 1∕4" | 13.7 | – | 1.65 | 2.24 | 2.24 | 3.02 | |||
| 10 | 3∕8" | 17.2 | – | 1.65 | 2.31 | 2.31 | 3.2 | |||
| 15 | 1∕2" | 21.3 | 1.65 | 2.11 | 2.77 | 2.77 | 3.73 | |||
| 20 | 3∕4" | 26.7 | 1.65 | 2.11 | 2.87 | 2.87 | 3.91 | |||
| 25 | 1" | 33.4 | 1.65 | 2.77 | 3.38 | 3.38 | 4.55 | |||
| 32 | 1-1∕4" | 42.2 | 1.65 | 2.77 | 3.56 | 3.56 | 4.85 | |||
| 40 | 1-1∕2" | 48.3 | 1.65 | 2.77 | 3.68 | 3.68 | 5.08 | |||
| 50 | 2" | 60.3 | 1.65 | 2.77 | 3.91 | 3.91 | 5.54 | |||
| 65 | 2-1∕2" | 73 | 2.11 | 3.05 | 5.16 | 5.16 | 7.01 | |||
| 80 | 3" | 88.9 | 2.11 | 3.05 | 5.49 | 5.49 | 7.62 | |||
| 90 | 3-1∕2" | 101.6 | 2.11 | 3.05 | 5.74 | 5.74 | 8.08 | |||
| 100 | 4" | 114.3 | 2.11 | 3.05 | 6.02 | 6.02 | 8.56 | |||
| 125 | 5" | 141.3 | 2.77 | 3.4 | 6.55 | 6.55 | 9.53 | |||
| 150 | 6" | 168.3 | 2.77 | 3.4 | 7.11 | 7.11 | 10.97 | |||
| 200 | 8" | 219.1 | 2.77 | 3.76 | 8.18 | 8.18 | 12.7 | |||
| 250 | 10" | 273.1 | 3.4 | 4.19 | 9.27 | 9.27 | 12.7 | |||
| 300 | 12" | 323.9 | 3.96 | 4.57 | 9.53 | 9.53 | 12.7 | |||
| 350 | 14" | 355.6 | 3.96 | 4.78 | – | 9.53 | – | |||
| 400 | 16" | 406.4 | 4.19 | 4.78 | – | 9.53 | – | |||
| 450 | 18" | 457.2 | 4.19 | 4.78 | – | 9.53 | – | |||
| 500 | 20" | 508 | 4.78 | 5.54 | – | 9.53 | – | |||
| 550 | 22" | 558.8 | 4.78 | 5.54 | – | 9.53 | – | |||
| 600 | 24" | 609.6 | 5.54 | 6.35 | – | 9.53 | – | |||
| 650 | 26" | 660.4 | – | – | – | 9.53 | – | |||
| 700 | 28" | 711.2 | – | – | – | 9.53 | – | |||
| 750 | 30" | 762 | 6.35 | 7.92 | – | 9.53 | – | |||
| 800 | 32" | 812.8 | – | – | 17.48 | 9.53 | – | |||
| 850 | 34" | 863.6 | – | – | 17.48 | 9.53 | – | |||
| 900 | 36" | 914.4 | – | – | 19.05 | 9.53 | – | |||
| 950 | 38" | 965.2 | – | – | - | 9.53 | – | |||
| 1000 | 40" | 1016 | – | – | - | 9.53 | – | |||
| Tube OD | Wall Thickness | Tolerance of OD | Tolerance of WT | Weight | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (inch) | (mm) | (Gauge) | (inch) | (mm) | (in/mm) | (kg/m) | |||||
| 1/4 | 6.35 | 20 | 0.035 | 0.89 | ±0.005 / ±0.13 | ±10% | 0.124 | ||||
| 1/2 | 12.7 | 16 | 0.065 | 1.65 | ±0.005 / ±0.13 | ±10% | 0.454 | ||||
| 3/4 | 19.1 | 16 | 0.065 | 1.65 | ±0.005 / ±0.13 | ±10% | 0.717 | ||||
| 1 | 25.4 | 16 | 0.065 | 1.65 | ±0.008 / ±0.20 | ±10% | 0.976 | ||||
| 1-1/2 | 38.1 | 16 | 0.065 | 1.65 | ±0.008 / ±0.20 | ±10% | 1.50 | ||||
| 2 | 50.8 | 16 | 0.065 | 1.65 | ±0.010 / ±0.25 | ±10% | 2.02 | ||||
| 2-1/2 | 63.5 | 16 | 0.065 | 1.65 | ±0.010 / ±0.25 | ±10% | 2.54 | ||||
| 3 | 76.2 | 16 | 0.065 | 1.65 | ±0.010 / ±0.25 | ±10% | 3.06 | ||||
| 4 | 101.6 | 14 | 0.083 | 2.11 | ±0.015 / ±0.38 | ±10% | 5.23 | ||||
| 6 | 152.4 | 12 | 0.109 | 2.77 | ±0.030 / ±0.76 | ±10% | 10.32 | ||||
| 8 | 203.2 | 12 | 0.109 | 2.77 | +0.061 / +1.27 -0.031 / -0.79 | ±10% | 13.86 | ||||
| Size | Tube OD | Thickness | Length | |||
|---|---|---|---|---|---|---|
| DN | mm | mm | (m) | |||
| DN10 | 12 | 1.5 | 4/6 | |||
| DN15 | 18 | 1.5 | 4/6 | |||
| DN20 | 22 | 1.5 | 4/6 | |||
| DN25 | 28 | 1.5 | 4/6 | |||
| DN32 | 34 | 1.5 | 4/6 | |||
| DN40 | 40 | 1.5 | 4/6 | |||
| DN50 | 52 | 1.5 | 4/6 | |||
| DN65 | 70 | 2.0 | 4/6 | |||
| DN80 | 85 | 2.0 | 4/6 | |||
| DN100 | 104 | 2.0 | 4/6 | |||
| DN125 | 129 | 2.0 | 4/6 | |||
| DN150 | 154 | 2.0 | 4/6 | |||
| DN200 | 204 | 2.0 | 4/6 | |||
| DN250 | 254 | 2.0 | 4/6 |
| Tube OD | Tolerance of OD | Wall Thickness | Tolerance of WT | Tolerance of Length | |||
|---|---|---|---|---|---|---|---|
| (inch) | (mm) | inch(mm) | (Gauge) | (inch) | (mm) | inch/mm | |
| 1/4" | 6.35 | +/-0.005(0.13) | 18 | 0.049" | 1.25 | +/-10.0% | +1/8"(3.18)-0 |
| 3/8" | 9.53 | +/-0.005(0.13) | 18 | 0.049" | 1.25 | +/-10.0% | +1/8"(3.18)-0 |
| 1/2" | 12.7 | +/-0.005(0.13) | 16 | 0.065" | 1.65 | +/-10.0% | +1/8"(3.18)-0 |
| 3/4" | 19.1 | +/-0.005(0.13) | 16 | 0.065" | 1.65 | +/-10.0% | +1/8"(3.18)-0 |
| 1" | 25.4 | +/-0.005(0.13) | 16 | 0.065" | 1.65 | +/-10.0% | +1/8"(3.18)- 0 |
| 1-1/2" | 38.1 | +/-0.008"(0.20) | 16 | 0.065" | 1.65 | +/-10.0% | +1/8"(3.18)-0 |
| 2" | 50.8 | +/-0.008"(0.20) | 16 | 0.065" | 1.65 | +/-10.0% | +1/8" (3.18)-0 |
| 2-1/2" | 63.5 | +/-0.010"(0.25) | 16 | 0.065" | 1.65 | +/-10.0% | +1/8"(3.18)-0 |
| 3" | 76.2 | +/-0.010"(0.25) | 16 | 0.065" | 1.65 | +/-10.0% | +1/8"(3.18)-0 |
| 4" | 101.6 | +/-0.015"(0.38) | 14 | 0.083" | 2.11 | +/-10.0% | +1/8" (3.18)-0 |
| 6" | 152.4 | +/-0.030"(0.76) | 14 | 0.083" | 2.11 | +/-10.0% | +1"(25.4)-0 |
| 8" | 203.2 | +0.061"(1.55) -0.031"(0.79) | 12 | 0.109" | 2.77 | +/-10.0% | +1"(25.4)-0 |
Application Industry
| Industries | Standards | Descirption | Application |
|---|---|---|---|
| Sanitary Tube | ASTM A270, EN10357(DIN11850), AS1528.1, ISO2037 | Beer, Food & beverage, pharmacy biological, and high sanitary industry requirements. |  |
| Heat Exchanger Tube | ASTM A249/ASME SA249, ASTM A269 (Welded), EN10217-7 | Boiler, Superheater, Heat Exchanger, Condenser, Evaporator |  |
| Liquid Cooling System | ASTM A249/ASME SA249, ASTM A269 (Welded), EN10217-7 | Supercomputer, Database Center |  |
| IIndustrial Pipe | ASTM A312, ASTM A358, ASTM A778, EN10217-7 | Petroleum, Chemical, Paper, Water Treatment, Construction, Energy, Environmental Protection |  |
| Automobile Exhaust | ASTM A554, ASTM A249 | Passenger cars, Performance & Racing, Motorcycles |  |
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