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ASTM SA/A269 Stainless Steel Pipe Specifications
ASTM A269 Covers grades of nominal-wall thickness, stainless steel tubing for general corrosion-resisting and low-or high-temperature services, as designated in standard.
ASTM A269 Stainless tubing sizes and thicknesses usually furnished to this specification are 1/4 in. (6.4mm) in inside diameter and larger and 0.020 in.(0.51mm) in nominal wall-thickness and heavier.
Grade: TP304, TP304L, TP304LN, TP316, TP316L, TP316LN TP317, TP321, TP347, TP348, S31254.
Seamless Stainless-Steel Tubes:
Size:1/8”to 24”(10.3mm to 610mm).
Schedules:10s, 20, 40s, 40, 60, 80s, 80, 100, 120, 140, 160, XXH.
Wall Thickness:1mm to 60mm.
Welded stainless steel pipe
Size:1/8”to 36”(10.3mm to 914mm)
Schedules:5s, 10s, 20, 40s, 40, 60, 80s, 80
Wall Thickness:1mm to 12.7mm
Length:Single random length, double random length or as customer’s actual request.
Chemical Composition
|
Grade |
UNS |
Composition, % |
||||||||||||||
|
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
Ti |
Nb |
N |
Cu |
Ce |
B |
Al |
||
|
TP304 |
S30400 |
0.08 |
2 |
0.045 |
0.03 |
1 |
18.0–20 |
8.0–11 |
. . . |
. . . |
. . . |
. . . |
. . . |
. . . |
|
|
|
TP304L |
S30403 |
0.035 |
2 |
0.045 |
0.03 |
1 |
18.0–20 |
8.0–13 |
. . . |
. . . |
. . . |
. . . |
. . . |
. . . |
|
|
|
TP304LN |
S30453 |
0.035 |
2 |
0.045 |
0.03 |
1 |
18.0–20 |
8.0–11 |
. . . |
. . . |
. . . |
0.10-0.16 |
. . . |
. . . |
|
|
|
TP316 |
S31600 |
0.08 |
2 |
0.045 |
0.03 |
1 |
16.0–18 |
10.0–14 |
2.00–3 |
. . . |
. . . |
. . . |
. . . |
. . . |
|
|
|
TP316L |
S31603 |
0.035 |
2 |
0.045 |
0.03 |
1 |
16.0–18 |
10.0–15 |
2.00–3 |
. . . |
. . . |
. . . |
. . . |
. . . |
|
|
|
TP316LN |
S31653 |
0.035 |
2 |
0.045 |
0.03 |
1 |
16.0–18 |
10.0–13 |
. . . |
. . . |
. . . |
0.10-0.16 |
. . . |
. . . |
|
|
|
TP317 |
S31700 |
0.08 |
2 |
0.045 |
0.03 |
1 |
18.0–20 |
11.0–15 |
3.0–4 |
. . . |
. . . |
. . . |
. . . |
. . . |
|
|
|
TP321 |
S32100 |
0.08 |
2 |
0.045 |
0.03 |
1 |
17.0–19 |
9.0–12 |
. . . |
. . . |
. . . |
. . . |
. . . |
. . . |
|
|
|
TP347 |
S34700 |
0.08 |
2 |
0.045 |
0.03 |
1 |
17.0–19 |
9.0–13 |
. . . |
. . . |
. . . |
. . . |
. . . |
. . . |
|
|
|
TP348 |
S34800 |
0.08 |
2 |
0.045 |
0.03 |
1 |
17.0–19 |
9.0–12.0 |
. . . |
0.10 |
. . . |
. . . |
. . . |
. . . |
|
C: 0.20 max |
|
. . . |
S31254 |
0.020 |
2 |
0.045 |
0.035 |
1 |
19.5–20.5 |
17.5-18.5 |
6.0-6.5 |
. . . |
. . . |
0.18-0.22 |
0.50-1.50 |
. . . |
|
. . . |
Tensile Requirements
|
Grade |
UNS |
Tensile Strength, Min. Ksi [MPa] |
Yield Strength, Min. Ksi [MPa] |
|
TP304 |
S30400 |
75 [515] |
30 [205] |
|
TP304L |
S30403 |
70 [485] |
25 [170] |
|
TP316 |
S31600 |
75 [515] |
30 [205] |
|
TP316L |
S31603 |
70 [485] |
25 [170] |
|
TP317 |
S31700 |
75 [515] |
30 [205] |
|
TP321 |
S32100 |
75 [515] |
30 [205] |
|
TP347 |
S34700 |
75 [515] |
30 [205] |
|
TP347H |
S34709 |
75 [515] |
30 [205] |
Diameter Tolerance ASTM A269 Tube
|
NPS |
ASTM A269 Tube OD Tolerance |
|||
|
+ |
– |
|||
|
inch |
mm |
inch |
mm |
|
|
1/8~1 1 /2 |
1/64(0.015) |
0.4 |
1/32(0.031) |
0.8 |
Wall ThicknessTolerance ASTM A269 Tube
|
NPS |
ASTM A269 Tube Tolerance, % |
|
|
+ |
– |
|
|
1/8-2 1 /2 |
20.0 |
12.5 |
|
3~18, t/D≤ 5% |
22.5 |
12.5 |
|
3~18, t/D> 5% |
15.0 |
12.5 |
|
≥ 20, welded |
17.5 |
12.5 |
|
≥ 20, seamless, t/D≤ 5% |
22.5 |
12.5 |
|
≥ 20, seamless, t/D> 5% |
15.0 |
12.5 |
