ASTM/ASME A778 Stainless Steel Pipe Specification for:
Welded, Unannealed Austenitic Stainless Steel Tubular Products.
It covers straight seam and spiral butt seam welded unannealed austenitic stainless steel tubular
products intended for low and moderate temperatures and corrosive service where heat treatment is not necessary for corrosion resistance.
This specification covers welded unannealed tubular products 3 in. (75 mm) through 48 in. (1200 mm) in outside diameter and in nominal wall thicknesses of 0.062 in. (1.5 mm) through 0.500 in. (12.5 mm) produced to this specification.
ASTM A778 Stainless Steel Welded Pipe Chemical Composition:
|
Chemical Composition, % |
||||||||||
|
Grade |
UNS |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
N |
|
TP 304L |
S30403 |
0.03 |
2 |
0.045 |
0.03 |
1 |
18.0–20.0 |
8.0–13.0 |
... |
0.1 |
|
TP 316L |
S31603 |
0.03 |
2 |
0.045 |
0.03 |
1 |
16.0–18.0 |
10.0–14.0 |
2~3 |
0.1 |
|
TP 317L |
S31703 |
0.03 |
2 |
0.045 |
0.03 |
1 |
18.0–20.0 |
11.0–15.0 |
3~4 |
0.1 |
|
TP 321 |
S32100 |
0.08 |
2 |
0.045 |
0.03 |
1 |
17.0–19.0 |
9.0–12.0 |
... |
... |
|
TP 347 |
S34700 |
0.08 |
2 |
0.045 |
0.03 |
1 |
17.0–19.0 |
9.0–12.0 |
... |
... |
ASTM A778 Stainless Steel Welded Pipe Description:
|
Out Diameter(OD): |
NPS 2.5"-48", DN65-DN1200, 73mm-1219.2mm. |
|
Wall Thickness(W.T.): |
1.5mm-12.5mm, Sch5S, SCH10S, SCH20. |
|
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#). |
|
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. |
|
Marking: |
YASE PIPELINE, Material Grade, Standard, Specification, Heat No., Lot No. |
|
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. |
YASE PIPELINE Manufacturing ASTM A778 Welded Pipe Products:
EFW Stainless Steel Pipe
Industrial Stainless Steel Pipeline
Straight Welded Stainless Steel Pipe
ASTM A778 Stainless Steel Welded Pipe
Large Diameter Stainless Steel Welded Pipe
Austenite Stainless Steel Welded Pipe
High Temperature Stainless Steel Welded Pipe
ASTM A778 Stainless Steel Welded Pipe Mechanical Property:
|
Grade |
UNS |
Tensile |
Yield |
Elongation in 2 |
|
Designation |
Strength, min |
Strength |
in. (50 mm) |
|
|
ksi (MPa) |
min, ksi (MPa) |
min, % |
||
|
TP304L |
S30403 |
70 (485) |
25 (170) |
40 |
|
TP316L |
S31603 |
70 (485) |
25 (170) |
40 |
|
TP317L |
S31703 |
75 (515) |
30 (205) |
35 |
|
TP321 |
S32100 |
75 (515) |
30 (205) |
40 |
|
TP347 |
S34700 |
75 (515) |
30 (205) |
40 |
ASTM A778 Stainless Steel Welded Pipe Dimension Chart :
|
Nominal
Pipe Size
|
Outside Diameter (mm) |
Nominal Wall Thickness Schedule (mm) |
|||||||||
|
NPS |
DN |
OD |
SCH
5s
|
SCH
l0s
|
SCH
40s
|
STD |
SCH 40 |
SCH
80s
|
SCH XS |
SCH 80 |
SCH XS |
|
1 1/2 |
40 |
48.3 |
1.65 |
2.77 |
3.68 |
3.68 |
3.68 |
5.08 |
5.08 |
5.08 |
5.08 |
|
2 |
50 |
60.3 |
1.65 |
2.77 |
3.91 |
3.91 |
3.91 |
5.54 |
5.54 |
5.54 |
5.54 |
|
2 1/2 |
65 |
73 |
2.11 |
3.05 |
5.16 |
5.16 |
5.16 |
7.01 |
7.01 |
7.01 |
7.01 |
|
3 |
80 |
88.9 |
2.11 |
3.05 |
5.49 |
5.49 |
5.49 |
7.62 |
7.62 |
7.62 |
7.62 |
|
3 1/2 |
90 |
101.6 |
2.11 |
3.05 |
5.74 |
5.74 |
5.74 |
8.08 |
8.08 |
8.08 |
8.08 |
|
4 |
100 |
114.3 |
2.11 |
3.05 |
6.02 |
6.02 |
6.02 |
8.56 |
8.56 |
8.56 |
8.56 |
|
5 |
125 |
141.3 |
2.77 |
3.4 |
6.55 |
6.55 |
6.55 |
9.53 |
9,53 |
9.53 |
9,53 |
|
6 |
150 |
168.3 |
2.77 |
3.4 |
7.11 |
7.11 |
7.11 |
10.97 |
10.97 |
10.97 |
10.97 |
|
8 |
200 |
219.1 |
2.77 |
3.76 |
8.18 |
8.18 |
8.18 |
12.7 |
12.7 |
12.7 |
12.7 |
|
10 |
250 |
273.1 |
3.4 |
4.19 |
9.27 |
9.27 |
9.27 |
12.7 |
12.7 |
15.09 |
12.7 |
|
12 |
300 |
323.9 |
3.96 |
4.57 |
9.53 |
9.53 |
10.31 |
12.7 |
12.7 |
17.48 |
12.7 |
|
14 |
350 |
355.6 |
3.96 |
4.78 |
- |
9.53 |
11.13 |
- |
12.7 |
19.05 |
12.7 |
|
16 |
400 |
406.4 |
4.19 |
4.78 |
- |
9.53 |
12.7 |
- |
12.7 |
21.44 |
12.7 |
|
18 |
450 |
457.2 |
4.19 |
4.78 |
- |
9.53 |
14.27 |
- |
12.7 |
23.83 |
12.7 |
|
20 |
500 |
508 |
4.78 |
5.54 |
- |
9.53 |
15.09 |
- |
12.7 |
26.19 |
12.7 |
ASTM A778 Stainless Steel Welded Pipe Dimensions Tolerance:
|
Nominal Pipe
Size (Inches)
|
Out Diameter Tolerance |
Wall Thickness Tolerance |
Cut |
|
|
Over |
Under |
Length Inches |
||
|
1/8 to 1-1/2 |
1/64 |
1/32 |
+4.5%/-12.5% |
+1/4/-0 |
|
Over 1-1/2 to 4 |
1/32 |
1/32 |
||
|
Over 4 to 8 |
1/9 |
1/32 |
||
|
Over 8 to 18 |
3/32 |
1/32 |
||
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