ASTM A312 Stainless Steel Pipe
Extra-large & Extra-thick
- International Standard
- Material Grades
- Outer Diameter
- Wall Thickness
- Tube Type
- Mill Test Certificate(MTC)
- Certificate
- ASTM A312 , ASME SA312 , ASME B36.19
- TP304/304L, TP316/316L, TP309/309S, TP310/310S, TP321/321H, TP347/347H, Duplex2205 / S31803, etc.
- 1/8″ – 80″ ,10.3mm - 2032mm
DN6 - DN2000 - 1mm - 60mm
SCH 5S - SCH XXS - Welded , Seamless
- EN10204 3.1
- ISO 9001:2015 , PED 2014/68/EU , AD 2000-WO
Stainless steel industrial pipes are essential for corrosive, high-pressure, and hygienic applications. They are used in oil & gas, chemical processing, food & beverage, and water treatment due to their rust resistance, strength, and cleanability.
ASTM A312 is the standard specification for seamless, welded, and heavily cold-worked austenitic stainless steel pipes used in high-temperature and corrosive service applications. It is one of the most widely used standards for industrial stainless steel piping.
ANSI/ASME B36.19 DIMENSION
ASTM A312 stainless steel pipe sizes and dimensions should conform to ANSI B36.19, nominal pipe size (NPS) ranges from NPS 1/8 [10.29 mm] to NPS 80 [2032 mm], Schedule number for wall thickness from Sch 5s to Sch xxs, more Pipe Schedule Sizes are specified for special applications, the value stated respectively for a specific size, average wall and minimum wall pipe are available.
| Nominal Size | OD | Wall Thickness, SCHEDULE | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NPS | DN | mm | 5S | 10S | 10 | 20 | 30 | 40S | STD | 40 | 80S | XS | 80 | 100 | 120 | 140 | 160 | XXS | |
| 1∕8" | 6 | 10.3 | 1.24 | 1.73 | 1.73 | 1.73 | 2.41 | 2.41 | 2.41 | ||||||||||
| 1∕4" | 8 | 13.7 | 1.65 | 2.24 | 2.24 | 2.24 | 3.02 | 3.02 | 3.02 | ||||||||||
| 3∕8" | 10 | 17.2 | 1.65 | 2.31 | 2.31 | 231 | 3.2 | 3.2 | 3.2 | ||||||||||
| 1∕2" | 15 | 21.3 | 1.65 | 2.11 | 2.77 | 2.77 | 2.77 | 3.73 | 3.73 | 3.73 | 4.78 | 7.47 | |||||||
| 3∕4" | 20 | 26.7 | 1.65 | 2.11 | 2.87 | 2.87 | 2.87 | 3.91 | 3.91 | 3.91 | 5.56 | 7.82 | |||||||
| 1" | 25 | 33.4 | 1.65 | 2.77 | 3.38 | 3.38 | 3.38 | 4.55 | 4.55 | 4.55 | 6.35 | 9.09 | |||||||
| 1-1∕4" | 32 | 42.2 | 1.65 | 2.77 | 3.56 | 3.56 | 3,56 | 4.85 | 4.85 | 4.85 | 6.35 | 9.7 | |||||||
| 1-1∕2" | 40 | 48.3 | 1.65 | 2.77 | 3.68 | 3.68 | 3.68 | 5.08 | 5.08 | 5.08 | 7.14 | 10.15 | |||||||
| 2" | 50 | 60.3 | 1.65 | 2.77 | 3.91 | 3.91 | 3.91 | 5.54 | 5.54 | 5.54 | 8.74 | 11.07 | |||||||
| 2-1∕2" | 65 | 73 | 2.11 | 3.05 | 5.16 | 5.16 | 5.16 | 7.01 | 7.01 | 7.01 | 9.53 | 14.02 | |||||||
| 3" | 80 | 88.9 | 2.11 | 3.05 | 5.49 | 5.49 | 5.49 | 7.62 | 7.62 | 7.62 | 11.13 | 15.24 | |||||||
| 3-1∕2" | 90 | 101.6 | 2.11 | 3.05 | 5.74 | 5.74 | 5.74 | 8.08 | 8.08 | 8.08 | |||||||||
| 4" | 100 | 114.3 | 2.11 | 3.05 | 6.02 | 6.02 | 6.02 | 8.56 | 8.56 | 8.54 | 11.13 | 13.49 | 17.12 | ||||||
| 5" | 125 | 141.3 | 2.77 | 3.4 | 6.55 | 6.55 | 6.55 | 9.53 | 9,53 | 9.53 | 12.7 | 15.88 | 19.05 | ||||||
| 6" | 150 | 168.3 | 2.77 | 3.4 | 7.11 | 7.11 | 7.11 | 10.97 | 10.97 | 10.97 | 14.27 | 18.26 | 21.95 | ||||||
| 8" | 200 | 219.1 | 2.77 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 8.18 | 12.7 | 12.7 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 | ||
| 10" | 250 | 273.1 | 3.4 | 4.19 | 6.35 | 7.8 | 9.27 | 9.27 | 9.27 | 12.7 | 12.7 | 15.09 | 18.26 | 21.44 | 25.4 | 28.58 | 25.4 | ||
| 12" | 300 | 323.9 | 3.96 | 4.57 | 6.35 | 8.38 | 9.53 | 9.53 | 10.31 | 12.7 | 12.7 | 17.48 | 21.44 | 25.4 | 28.58 | 33.32 | 25.4 | ||
| 14" | 350 | 355.6 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 12.7 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | ||||
| 16" | 400 | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | 9.53 | 12.7 | 12.7 | 21.44 | 26.19 | 30.95 | 36.53 | 40.49 | ||||
| 18" | 450 | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 12.7 | 23.83 | 29.36 | 34.93 | 39,67 | 45.24 | ||||
| 20" | 500 | 508 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 9.53 | 15.09 | 12.7 | 26.19 | 32.54 | 38.1 | 44.45 | 50.01 | ||||
| 22" | 550 | 558.8 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 9.53 | 12.7 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | |||||
| 24" | 600 | 609.6 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 12.7 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | ||||
| 26" | 650 | 660.4 | 7.92 | 12.7 | 9.53 | 12.7 | |||||||||||||
| 28" | 700 | 711.2 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||||||
| 30" | 750 | 762 | 6.35 | 7.92 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||||
| 32" | 800 | 812.8 | 7.92 | 12.7 | 15.88 | 17.48 | 9.53 | 17.48 | 12.7 | ||||||||||
| 34" | 850 | 863.6 | 7.92 | 12.7 | 15.88 | 17.48 | 9.53 | 17.48 | 12.7 | ||||||||||
| 36" | 900 | 914.4 | 7.92 | 12.7 | 15.88 | 19.05 | 9.53 | 19.05 | 12.7 | ||||||||||
| 38" | 950 | 965.2 | - | 9.53 | 12.7 | ||||||||||||||
| 40" | 1000 | 1016 | - | 9.53 | 12.7 | ||||||||||||||
Mechanical Strenght
| SS Pipes Grade ASTM A312/ASME SA312 | Yield Strength N/mm2 (min) | Tensile Strength N/mm2 (min) | Elongation % (min) |
|---|---|---|---|
| TP304 | 205 | 515 | 35 |
| TP304L | 170 | 485 | 35 |
| TP316 | 205 | 515 | 35 |
| TP316L | 170 | 485 | 35 |
| TP321 | OD < 17,1 mm – 205 | OD < 17,1 mm – 515 | 35 |
| OD > 17,1 mm – 170 | OD > 17,1 mm – 485 |
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