We offer ASTM A312 TP 316L stainless steel pipe for many industries, ASTM A312 pipe can be welded pipe, also seamless pipe, Astm a312 grade 316L has excellent properties to meet special applications.
There are wide range dimensions and sizes for ASTM A312 stainless steel pipe, sizes from 1/8 inch to 30 inch for outside diameter, Schedule 5 to Schedule 160 for wall thicKness, heavy wall pipe is available.
ASTM A312 TP 316L Stainless Steel Welded Pipe, ASTM A312 TP 316L SCHEDULE 10S, 40S, 80S Pipe, ASTM A312 TP 316L 1.4404 Equivalent Pipe, ASTM A312 SS 316L Large Diameter Stainless Steel Pipe, ASME SA312 TP316L SS EFW Pipes.
ASTM A312 TP 316L Stainless Steel Pipe Specifications
| Standard | ASTM A312, ASME SA312 |
|---|---|
| Material | TP316L |
| Pipe Type | Welded Pipe, Seamless Pipe |
| Finishes | Annealing Pickling |
| Outside Diameter | 1/8 Inch To 30 Inch |
| Thickness | Sch 5 To Sch 160 |
| Application | Pressure, High Temperature Service |
ASTM A312 TP316L Stainless Steel
TP316L stainless steel is molybdenum-bearing grade, beside TP304 grade, it is second used Austenitic stainless steel material, because TP316L has excellent properties.
With molybdenum alloy addition, and low carbon content, TP316L possesses better overall corrosion resistant properties, particular in chloride environments.
ASTM A312 TP316L Chemical Composition
| Grade | C | Si | Mn | Cr | Ni | Mo | S | P |
|---|---|---|---|---|---|---|---|---|
| TP316L | 0,035 | 1,0 | 2 | 16 – 18 | 10 – 15 | 2 – 3 | 0,03 | 0,045 |
* Maximum value, unless otherwise indicated.
ASTM A312 TP316L Mechanical Properties
| Grade | Tensile Strength(Mpa) | Yield Point(Mpa) | Elongation(%) |
|---|---|---|---|
| 316L | 485 | 170 | 35 |
* Minimum value, unless otherwise indicated.
TP316 is higher carbon content grade compared to TP316L, in practice, it can be dual certified with TP316L to obtain better properties.
Other grades are avalaible, ASTM 312 TP304, ASTM A312 TP304L.
ASTM A312 TP 316L Seamless Pipe
ASTM A312 specification covers welded and seamless stainless steel pipes, seamless pipe is made from billet, a hollow semi finished tube, then hot rolling or cold drawn process, our mill adopt cold rolled and cold drawn to produce seamless pipe.
ASTM A312 TP 316L Welded Pipe
ERW or EFW welding method is usually used for ASTM A312 welded pipe, making from plate without additional metal filler, often single longitudinal welding is used, for large diameter pipe, double longitudinal welding is accepted.
Heat Treatment
ASTM A312 TP316L grade minimum solution temperature is 1040 degree, then and cool rapidly, it can not be harden by annealing, both seamless and welded stainless steel pipes shall be furnished in heat treatment condition comply to ASTM A312 specification.
ASTM A312 TP316L Stainless Steel Pipe Sizes
Pipe sizes are based on ANSI B36.19, outside diameter ranges from NPS 1/8 inch to 30 Inch, that is 10.3 to 762 mm, DN 6 to DN 750, wall thickness ranges from Sch 5S to 80S.
Small diameter pipe, thin wall pipe and heavy wall pipe are available on request.
We should notice that pipe sizes under NPS 14 inch is not actual diameter, for example, NPS 8 inch, it is 219.08 mm, not 203.2 mm.
ASTM A312 Stainless Steel Pipe Tolerances
| OD | Tolerance | WTH, mm | Length, mm |
|---|---|---|---|
| 10.3 to 48.3 | +0.40/-0.80 | +/-12.5%t | +6/-0 |
| over 48.3 to 114.3 | +0.80/-0.08 | ||
| over 114.3 to 219.1 | +1.60/-0.80 | ||
| over 219.1 to 457.2 | +2.40/-0.80 | ||
| over 457.2 to 660.4 | +3.20/-0.80 | ||
| over 660.4 to 864 | +4.00/-0.08 | ||
| over 864 to 1219.2 | +4.80/-0.08 |
ASTM A312 TP 316L Pipe Quality Control
ASTM A312 TP316L pipe dimensional tolerance should be confirmed to above table, tight tolerance is often offered doe special requirement, mechanical tests should be performed in accordance with ASTM A312, flare for seamless pipes, flange and reverse flatten for welded pipes.
Related Documents
- 316L Stainless Steel – a chromium-nickel molybdenum austenitic stainless steel grade.
- A312 tp316l Density – 7980 Kg / M3 (0.288 Lb/In3), density of stainless steel.
- Difference between 316l and 304 stainless steel
- Difference between 316l and 316 – 316L is very similar to 316 in almost every aspect. there both are durable, corrosion-resistant, and a good choice for high-stress applications, in practice, dual certified grade 316/316L is often required. However, the “L” designation means 316L steel has less carbon than 316 steel, it is less susceptible to sensitization, a condition caused when carbon combines with chromium around the grain boundaries, depleting the grain boundary areas of chromium during welding process, though it can be resisted via annealing.
- ASME/ANSI B36.10/19 – Alloy and Stainless Steel Pipes – Dimensions – Metric Units, Pipe sizes, inside and outside diameters, wall thickness, schedule.