ASTM A269 TP 321 Stainless Steel Seamless Tubes Grade and Specification
- Specifications: ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790
- Sizes (Seamless): 1/2" NB - 24" NB
- Sizes (ERW):1/2" NB - 24" NB
- Sizes (EFW): 6" NB - 100" NB
- Wall Thickness available:Schedule 5S - Schedule XXS (heavier on request)
- Other Materials Testing:NACE MR0175, H2 SERVICE, OXYGEN SERVICE, CRYO SERVICE, etc.
- Dimensions:All Pipes is manufactured and inspected/tested to the relevant standards including ASTM, ASME and API etc.
ASTM |
A312, A376,A358, A269, A249, A403, A182, A351 |
ASME |
SA312, SA376, Pressure SA358,SA269, SA249,SA403, SA182, SA351 |
ASTM A269 TP 321 Stainless Steel Seamless Tubes Available Size
NB SIZES |
SCH 5 | SCH 10 | SCH 40 | SCH 80 | SCH 160 |
|---|---|---|---|---|---|
1/8″ |
√ |
√ |
√ |
√ |
√ |
1/4″ |
√ |
√ |
√ |
√ |
√ |
3/8″ |
√ |
√ |
√ |
√ |
√ |
1/2″ |
√ |
√ |
√ |
√ |
√ |
3/4″ |
√ |
√ |
√ |
√ |
√ |
1″ |
√ |
√ |
√ |
√ |
√ |
1 1/4″ |
√ |
√ |
√ |
√ |
√ |
1 1/2″ |
√ |
√ |
√ |
√ |
√ |
2″ |
√ |
√ |
√ |
√ |
√ |
2 1/2″ |
√ |
√ |
√ |
√ |
√ |
3″ |
√ |
√ |
√ |
√ |
√ |
4″ |
√ |
√ |
√ |
√ |
√ |
5″ |
√ |
√ |
√ |
√ |
√ |
6″ |
√ |
√ |
√ |
√ |
√ |
Chemical Composition of ASTM A269 TP 321 Stainless Steel Seamless Tubes
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
|---|---|---|---|---|---|---|---|---|---|---|---|
321 |
min. max |
– 0.08 |
2.00 |
0.75 |
0.045 |
0.030 |
17.0 19.0 |
– |
9.0 12.0 |
0.10 |
Ti=5(C+N) 0.70 |
321H |
min. max |
0.04 0.10 |
2.00 |
0.75 |
0.045 |
0.030 |
17.0 19.0 |
– |
9.0 12.0 |
– |
Ti=4(C+N) 0.70 |
Mechanical Properties of ASTM A269 TP 321 Stainless Steel Seamless Tubes
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
|
|---|---|---|---|---|---|
Rockwell B (HR B) max |
Brinell (HB) max |
||||
321 |
515 |
205 |
40 |
95 |
217 |
321H |
515 |
205 |
40 |
95 |
217 |
ASTM A269 TP 321 Stainless Steel Seamless Tubes Physical Properties
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (m/m/0C) |
Thermal Conductivity (W/m.K) |
|||
|---|---|---|---|---|---|---|---|
0-1000C |
0-3150C |
0-5380C |
at 1000C |
at 5000C |
|||
321 |
8027 |
193 |
16.6 |
17.2 |
18.6 |
16.1 |
22.2 |
Grade specifications for 321 Stainless Steel Pipes & Tubes
Grade |
UNS No |
Old British |
Euronorm |
Swedish SS |
Japanese JIS |
||
|---|---|---|---|---|---|---|---|
BS |
En |
No |
Name |
||||
321 |
S32100 |
321S31 |
58B, 58C |
1.4541 |
X6CrNiTi18-10 |
2337 |
SUS 321 |
321H |
S32109 |
321S51 |
– |
1.4878 |
X10CrNiTi18-10 |
– |
SUS 321H |
ASTM A269 TP 321 Stainless Steel Seamless Tubes Test Certificate
- Manufacturer Test Certificate
- IBR Test Certificate (Form III-D)
- Laboratory Test Certificate from Govt. Approved Lab.
ASTM A269 TP 321 Stainless Steel Seamless Tubes Outside Diameter & Tolerance
Nominal Pipe Size (inches) |
Outside Diameter |
Schedule |
||||||||
5S |
10S |
40S |
80S |
|||||||
(mm) |
(inches) |
Wall Thickness and Weight |
||||||||
mm (in) |
kg/m |
mm (in) |
kg/m |
mm (in) |
kg/m |
mm (in) |
kg/m |
|||
1/8 |
10.3 |
0.405 |
- |
- |
1.25 (0.049) |
0.28 |
1.73 (0.068) |
0.37 |
2.42 (0.095) |
0.47 |
1/4 |
13.7 |
0.540 |
- |
- |
1.66 (0.065) |
0.49 |
2.24 (0.088) |
0.63 |
3.03 (0.119) |
0.80 |
3/8 |
17.2 |
0.675 |
- |
- |
1.66 (0.065) |
0.63 |
2.32 (0.091) |
0.85 |
3.20 (0.126) |
1.10 |
1/2 |
21.3 |
0.840 |
1.65 (0.065) |
0.81 |
2.11 (0.083) |
1.00 |
2.77 (0.109) |
1.27 |
3.74 (0.147) |
1.62 |
3/4 |
26.7 |
1.050 |
1.65 (0.065) |
1.02 |
2.11 (0.083) |
1.28 |
2.87 (0.113) |
1.68 |
3.92 (0.154) |
2.20 |
1 |
33.4 |
1.315 |
1.65 (0.065) |
1.30 |
2.77 (0.109) |
2.09 |
3.38 (0.133) |
2.50 |
4.55 (0.179) |
3.24 |
1 1/4 |
42.2 |
1.660 |
1.65 (0.065) |
1.66 |
2.77 (0.109) |
2.69 |
3.56 (0.140) |
3.39 |
4.86 (0.191) |
4.47 |
1 1/2 |
48.3 |
1.900 |
1.65 (0.065) |
1.91 |
2.77 (0.109) |
3.11 |
3.69 (0.145) |
4.06 |
5.08 (0.200) |
5.41 |
2 |
60.3 |
2.375 |
1.65 (0.065) |
2.40 |
2.77 (0.109) |
3.93 |
3.92 (0.154) |
5.45 |
5.54 (0.218) |
7.49 |
2 1/2 |
73.0 |
2.875 |
2.11 (0.083) |
3.69 |
3.05 (0.120) |
5.26 |
5.16 (0.203) |
8.64 |
7.01 (0.276) |
11.4 |
3 |
88.9 |
3.500 |
2.11 (0.083) |
4.52 |
3.05 (0.120) |
6.46 |
5.49 (0.216) |
11.3 |
7.62 (0.300) |
15.3 |
3 1/2 |
101.6 |
4.000 |
2.11 (0.083) |
5.18 |
3.05 (0.120) |
7.41 |
5.74 (0.226) |
13.6 |
8.08 (0.318) |
18.6 |
4 |
114.3 |
4.500 |
2.11 (0.083) |
5.84 |
3.05 (0.120) |
8.37 |
6.02 (0.237) |
16.1 |
8.56 (0.337) |
22.3 |
5 |
141.3 |
5.563 |
2.77 (0.109) |
9.46 |
3.41 (0.134) |
11.6 |
6.56 (0.258) |
21.8 |
9.53 (0.375) |
31.0 |
6 |
168.3 |
6.625 |
2.77 (0.109) |
11.3 |
3.41 (0.134) |
13.9 |
7.12 (0.280) |
28.3 |
10.98 (0.432) |
42.6 |
8 |
219.1 |
8.625 |
2.77 (0.109) |
14.8 |
3.76 (0.148) |
20.0 |
8.18 (0.322) |
42.5 |
12.70 (0.500) |
64.6 |
10 |
273.1 |
10.750 |
3.41 (0.134) |
22.7 |
4.20 (0.165) |
27.8 |
9.28 (0.365) |
60.4 |
12.70 (0.500) |
81.5 |
12 |
323.9 |
12.750 |
3.97 (0.156) |
31.3 |
4.58 (0.180) |
36.1 |
9.53 (0.375) |
73.9 |
12.70 (0.500) |
97.4 |