ASTM A312 316L Stainless Steel Seamless Pipe
ASTM A312 316L stainless steel seamless pipe is a high quality pipe used in a wide variety of different fields. One of the main advantages of this tube is that it has excellent corrosion resistance, which makes it ideal for use in environments that have an impact on corrosion. In addition, this tube also has extremely high temperature resistance, which makes it ideal for use in high temperature environments.
ASTM A312 316L seamless tubing is of high quality and it meets many different standards and requirements. For example, the tubing is compliant with ASTM A312, a standard widely used in the industry. In addition, it complies with many other national and industry standards and requirements, including ASME, DIN, EN, JIS, and more.
The cost of ASTM A312 316L seamless tubing is relatively high, but due to its high quality and excellent performance, it is a tubing well worth the investment. It can be used for a long time without maintenance and replacement, which makes it ideal for many companies and businesses.
SS 316L Seamless Pipe vs Stainless Steel 316L Welded Pipe
Stainless Steel 316L is a popular material choice for a wide range of applications due to its excellent corrosion resistance, high ductility, and good mechanical properties. One of the most important factors to consider when choosing the right type of pipe for your application is whether to opt for a seamless or welded option. Below, we will discuss the benefits of both SS 316L seamless pipes and stainless steel 316L welded pipes.
SS 316L Seamless Pipe:
- Seamless pipes are made by piercing a solid block of steel and drawing it out to form the desired shape without any joints or seams. This eliminates the risk of weak points and makes them more reliable and durable than welded pipes.
- The absence of welds also makes seamless pipes more aesthetically pleasing, as the surface is completely smooth and uniform. This is particularly important for applications where appearance matters, such as in the automotive, aerospace, and healthcare industries.
- Due to their manufacturing process, seamless pipes usually have tighter tolerances and higher wall thicknesses than welded pipes. This makes them more suitable for high-pressure and high-temperature applications where reliability and safety are critical.
Stainless Steel 316L Welded Pipe:
- Welded pipes are made by rolling a flat sheet of steel into a tube shape and welding the edges together. This makes them a more cost-effective option than seamless pipes, as the manufacturing process is simpler and less time-consuming.
- Welded pipes are also available in a wider range of sizes and wall thicknesses than seamless pipes, making them more versatile and adaptable to different applications.
- While welded pipes do have seams, modern welding techniques such as TIG and MIG produce strong and reliable joints that are resistant to corrosion and wear. This makes them suitable for a wide range of applications where appearance is not a priority but strength and durability are key factors.
In conclusion, both SS 316L seamless pipes and stainless steel 316L welded pipes have their own unique benefits and applications. Choosing the right type of pipe for your needs depends on a variety of factors, such as the budget, the application requirements, and any specific functional or aesthetic considerations. Ultimately, both options are excellent choices for anyone looking for a high-quality, durable, and corrosion-resistant material for their piping needs.
AISI 316L Pipe Outside Diameter
OD | NOMINAL PIPE SIZE (NPS) |
---|---|
0.84 | 1/2" |
1.05 | 3/4" |
1.315 | 1" |
1.66 | 1-1/4" |
1.9 | 1-1/2" |
2.375 | 2" |
2.875 | 2-1/2" |
3.5 | 3" |
4 | 3-1/2" |
4.5 | 4" |
SUS 316L Pipe Od Tolerance
Standard | Manufacturing Method | Wall Thickness Tolerance | OD Tolerance | Others | |
---|---|---|---|---|---|
Outer Diameter (mm) | Class | ||||
EN10216-5 | Hot Finished Stainless Steel 316L Seamless Pipe | +22.5%T,-15%T | 219.1~610 | D1 | T/D≤0.05 |
T1 | T/D≤0.09 | ||||
T2 | T/D>0.09 | ||||
T1 | 30~219.1 | D2 | |||
T2 | |||||
Cold Finished 316L SS Seamless Pipe | T3 | ≤219.1 | D3 | ||
T4 | D4 | Agreement | |||
EN10297-2 | Hot Finished 1.4436 Stainless Steel Seamless Pipe | T1 | D1 | ||
T2 | D2 | Agreement | |||
Cold Finished 316L Stainless Steel Seamless Pipe | T3 | D3 | |||
T4 | D4 | Agreement | |||
EN10217-7 | Stainless Steel 316L Welded Pipe | T3 | >168.3 | D2 | |
T3 | ≤168.3 | D3 | |||
T3 | D4 | Agreement | |||
EN10296-2 | 316L SS Welded Pipe | T3 | >168.3 | D2 | |
T3 | ≤168.3 | D3 | |||
T3 | ≤114.3 | D4 | Agreement | ||
EN10312 | 1.4436 Stainless Steel Welded Pipe | T3 | Series 1 | D4 | T=0.6~2 Mm |
T3 – T4 | Series 2 | D3 – D4 | T=1~ |
ASTM specification of Stainless Steel 316L Pipe
Stainless Steel 316L Pipe American Standard | |
---|---|
ASTM A999 | |
ASTM A312 / A312M | ASTM A790 / A790M |
ASTM A778 | ASTM A928 / A928M |
ASTM A409 / A409M | ASTM A814 / A814M |
ASTM A376 / A376M | ASTM A813 / A813M |
Alloy 316L Pipe Temperature Limit
Hot working: 1150-1260 °C
TP316L Pipe Thermal Conductivity
Specific Heat (0 to 100°C) | J.kg-1.°K-1 | 500 |
---|---|---|
Thermal Conductivity | W.m -1.°K-1 | 16.3 |
Thermal Expansion | μm/μm/°C | 15.9 |
SS 316L Pipe Chemical Composition
Element | Min | Max |
---|---|---|
C | - | 0.035 |
Mn | - | 2 |
Ni | 10 | 15 |
Cr | 16 | 18 |
Mo | 2 | 3 |
S | - | 0.03 |
Si | - | 1 |
P | - | 0.045 |
316L Pipe Mechanical Properties
Temper | SS 316L Annealed Pipe | 316L Cold worked Pipe(approx. 20%) | ||
---|---|---|---|---|
Tensile Strength Rm | 70 | ksi (min) | 102-131 | ksi (min) |
Tensile Strength Rm | 485 | MPa (min) | 700-900 | MPa (min) |
R.p. 0.2% Yield Strength | 27 | ksi (min) | 73-102 | ksi (min) |
R.p. 0.2% Yield Strength | 182 | MPa (min) | 500-700 | MPa (min) |
Elongation (2” or 4D gl) | 35 | % (min) | 40 | % (min) |
SS 1.4408 Pipe equivalent grades chart
USA | UNS No | Old British | Euronorm | Swedish SS | Japan JIS | ||
BS | En | WNR | id | ||||
316L | S31603 | 304S11 | 58E | 1.4436 | X3CrNiMo17-13-3 | 2348 | SUS 316L |
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