ASTM A312 TP304 TP316 Large Diameter Stainless Steel Welded Pipe
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ASTM A312 is the standard specification for austenitic stainless steel pipe, including large-diameter welded pipe for high-temperature and corrosive applications. Large-diameter (NPS > 14) pipe can be constructed with a single longitudinal weld or from two longitudinally welded sections.
GNEE's ASTM A312 TP304 and TP316 large-diameter stainless steel welded pipes are large pipes (typically 30 inches or larger) made of 304 and 316 stainless steel, manufactured in accordance with ASTM A312 using an automated welding process that requires no filler metal and is welded together to form the pipe structure. These pipes are used in high-pressure, corrosive, or high-temperature applications and are renowned for their corrosion resistance. Large-diameter welded pipes are generally more economical than seamless pipes.
If you want to know more details and prices of the products, please contact us in time! Email: info@gneestainless.com
ASTM A312 Large Diameter Stainless Steel Pipe Description:
|
Out Diameter(OD): |
NPS 10"-32", DN250-DN800, 273mm-813mm. |
|
Wall Thickness(W.T.): |
4mm-50mm, Sch5S, SCH10S, SCH20, SCH40, Sch80, Sch XXS. |
|
Length(L): |
Fixed 6 meters, or other Length as Specified. |
|
End: |
Plain End, Bevel End. |
|
Delivery Condition: |
Annealed and Pickled, Bright Annealed, Polished(400#,600#), Hairline. |
|
Inspection: |
100% PMI, Hydrostatic Test, Eddy Current, Ultrasonic, X-Ray, Penetrant Test. |
|
Mechanical Test: |
Tension Test, Flattening Test, Flaring Test, Hardness Test, Impact Test. |
|
Tolerance: |
According to the Production Standard. |
|
Packing: |
By Bundles, Plywood Cases. |
|
Mill Test Certificate: |
According to EN 10204 3.2 |
|
Production Time: |
2-30 Days, or up to the quantity. |
|
Shipping: |
By Sea, By Air, By Express. |
|
MOQ: |
1000KGS. |
|
Sample: |
Free samples but freight charge paid by customer. |
|
Customized: |
Available. |
ASTM A312 Large Diameter Stainless Steel Welded Pipe Chemical Composition:
|
Chemical Composition |
|||||||||||
|
Grade |
UNS |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
Other |
|
301 |
S30100 |
0.15 |
2.00 |
1.00 |
0.045 |
0.030 |
16.0-18.0 |
|
6.0-8.0 |
0.10 |
|
|
302HQ |
S30430 |
0.030 |
2.00 |
1.00 |
0.045 |
0.030 |
17.0-19.0 |
|
8.0-10.0 |
|
3.0-4.0 Cu |
|
303 |
S30300 |
0.15 |
2.00 |
1.00 |
0.2 |
0.15min |
17.0-19.0 |
|
8.0-10.0 |
|
|
|
304 |
S30400 |
0.08 |
2.00 |
1.00 |
0.045 |
0.030 |
18-20 |
- |
8.0-11 |
|
|
|
304L |
S30403 |
0.030 |
2.00 |
1.00 |
0.045 |
0.030 |
18-20 |
- |
8.0-13 |
|
|
|
304H |
S30409 |
0.04-0.10 |
2.00 |
1.00 |
0.045 |
0.030 |
18.0-20.0 |
|
8.0-11 |
|
|
|
304N |
S30451 |
0.08 |
2.00 |
1.00 |
0.045 |
0.030 |
18.0-20.0 |
|
8.0-18 |
0.10-0.16 |
|
|
305 |
S30500 |
0.12 |
2.00 |
1.00 |
0.045 |
0.030 |
17.0-19.0 |
|
10.5-13.0 |
|
|
|
309S |
S30908 |
0.08 |
2.00 |
1.00 |
0.045 |
0.030 |
22.0-24.0 |
|
12.0-15.0 |
|
|
|
310H |
S31009 |
0.04-0.10 |
2.00 |
1.00 |
0.045 |
0.030 |
24.0-26.0 |
|
19.0-22.0 |
|
|
|
310S |
S31008 |
0.08 |
2.00 |
1.00 |
0.045 |
0.030 |
24.0-26.0 |
|
19.0-22.0 |
|
|
|
316 |
S31600 |
0.08 |
2.00 |
1.00 |
0.045 |
0.030 |
16.0-18.0 |
2.0-3.0 |
10.0-14.0 |
0.10 |
|
|
316L |
S31603 |
0.030 |
2.00 |
1.00 |
0.045 |
0.030 |
16.0-18.0 |
2.0-3.0 |
10.0-14.0 |
0.10 |
|
|
316H |
S31609 |
0.04-0.10 |
2.00 |
1.00 |
0.045 |
0.030 |
16.0-18.0 |
2.0-3.0 |
10.0-14.0 |
|
|
|
316N |
S31651 |
0.08 |
2.00 |
1.00 |
0.045 |
0.030 |
16.0-18.0 |
2.0-3.0 |
10.0-14.0 |
0.10-0.16 |
|
|
904L |
N08904 |
0.020 |
2.00 |
1.00 |
0.045 |
0.035 |
19.0-23.0 |
4.0-5.0 |
23.0-28.0 |
0.10 |
1.0-2.0 Cu |
ASTM A312 Large Diameter Stainless Steel Pipe Physical Properties:
|
Physical Properties |
|||||||||
|
Grade |
Density kg/m3 |
Elastic Modulus (a) GPa
|
Mean Coefficient of Thermal Expansion (b)
|
Thermal Conductivity
|
Specific Heat 0-100°C J/kg.K
|
Elect. Resis- tivity nΩ.m |
|||
|
0-100°C μm/m/°C
|
0-315°C μm/m/°C
|
0-538°C μm/m/°C
|
at 100°C W/m.K
|
at 500°C W/m.K
|
|||||
|
304 |
8000 |
193 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
500 |
720 |
|
304L |
8000 |
193 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
500 |
720 |
|
304H |
8000 |
193 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
500 |
720 |
|
309S |
8000 |
200 |
15.0 |
16.6 |
17.2 |
15.6 |
18.7 |
500 |
780 |
|
310H |
7750 |
200 |
15.9 |
16.2 |
17.0 |
14.2 |
18.7 |
500 |
720 |
|
310S |
7750 |
200 |
15.9 |
16.2 |
17.0 |
14.2 |
18.7 |
500 |
720 |
|
316 |
8000 |
193 |
15.9 |
16.2 |
17.5 |
16.3 |
21.5 |
500 |
740 |
|
316L |
8000 |
193 |
15.9 |
16.2 |
17.5 |
16.3 |
21.5 |
500 |
740 |
|
316H |
8000 |
193 |
15.9 |
16.2 |
17.5 |
16.3 |
21.5 |
500 |
740 |
|
316N |
8000 |
196 |
15.9 |
16.2 |
17.5 |
14.4 |
- |
500 |
740 |
|
316Ti |
8000 |
193 |
15.9 |
16.2 |
17.5 |
16.3 |
21.5 |
500 |
740 |
|
317L |
8000 |
200 |
16.5 |
17.0 |
18.1 |
14.4 |
- |
500 |
790 |
|
321 |
8000 |
193 |
16.6 |
17.2 |
18.6 |
16.1 |
22.2 |
500 |
720 |
|
347 |
8000 |
193 |
16.6 |
17.2 |
18.6 |
16.1 |
22.2 |
500 |
720 |
|
904L |
8000 |
200 |
15.0 |
- |
- |
13.0 |
- |
500 |
850 |
|
253MA |
7800 |
200 |
17.0 |
17.2 |
18.0 |
14.0 |
18.0 |
500 |
850 |
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.
All ASTM A312 TP316L large-diameter stainless steel pipes are produced under strict quality control procedures. Each pipe undergoes dimensional inspection, surface defect detection, PMI (Positive Material Identification), ultrasonic or eddy current testing, and hydrostatic pressure testing to ensure compliance with ASTM A312 standards. Only pipes that meet international quality standards are securely packaged for shipping, ensuring stable performance, corrosion resistance, and long service life.
All ASTM A312 TP316L large-diameter stainless steel round pipes are securely packaged in moisture-proof wooden crates or pallets to ensure safe transportation and maintain product quality.
