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Seamless Stainless Steel Tubing
Guanyu Tube is a leading manufacturer of Seamless Stainless Steel Tubing with wide range of Grades and Sizes. The OD size is the difference between pipes and tubes. The OD size of pipes much bigger than tubes. Mainly standard is ASTM A312. A large number of pipes used for conveying fluids, such as oil, gas, water, gas, steam,heat exchanger,mechanical machine.
TP304/L, 316/L, 321, S31803.
Seamless Stainless Steel Tubing Size
OD: 219.1 - 508mm (8 INCH to 20 INCH)
WT: 12.7-60 mm
Production Capacity: 500 tons/Month
Seamless Stainless Steel Tubings Application
Power generation, Boiler, Electricity, Mechanical, Shipbuilding,
Gas cylinder, Chemical, Offshore and oil service…etc.
Seamless Stainless Steel Tubing Main Testing Terms and Procedure:
1. Heat Treatment and Solution Annealing / Bright Annealing
2. Cutting to required length and deburring;
3. Chemical Composition Analysis Test With 100% PMI and One tube from each heat by Direct Reading Spectrometer
4. Visual Test and Endoscope Test for Surface Quality Test
5. 100% Hydrostatic Test and 100% Eddy Current Test
6. Ultrasonic Test subject to the MPS (Material Purchase Specification)
7. Mechanical Tests includes Tension Test, Flattening Test, Flaring Test, Hardness Test
8. Impact Test subject to Standard request
9. Grain Size Test and Intergranular Corrosion Test
10. Ultrasoic measuring of Wall Thickness
Seamless Stainless Steel Tubing Marking & Packing
Marking according to MPS and Standard
Stainless Steel Tubes Ends with Caps according to PO
In Seaworthy Wooden Cases With Plastic Paper protect
In Plywood Cases With Plastic Paper Protect(Recommend, All Plywood Cases made by ourselves with lower cost.)
Steel Racks Package
Hexagonal packing in Bundles
Visual Testing
100% PMI Testing
Hydraustatic Testing
Plywood Cases Package
Iron Frame Plywood Case Package
Seamless Stainless Steel Tubing Quality Control
Third Part Inspection Accepted according to EN 10204 3.2
Stainless Steel Pipe Specification:
ASTM A312/A312M Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipe
ASTM A790 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
Standard
Item |
ASTM A213 |
ASTM A269 |
ASTM A312 |
Grade |
304 304L 304H 304N 304LN
316 316L 316Ti 316N 316LN
321 321H 310S 310H 309S
317 317L 347 347H |
304 304L 304H 304N 304LN
316 316L 316Ti 316N 316LN
321 321H 310S 310H 309S
317 317L 347 347H |
304 304L 304H 304N 304LN
316 316L 316Ti 316N 316LN
321 321H 310S 310H 309S
317 317L 347 347H |
Yield Strength
(Mpa) |
≥170;≥205 |
≥170;≥205 |
≥170;≥205 |
Tensile Strength
(Mpa) |
≥485;≥515 |
≥485;≥515 |
≥485;≥515 |
Elongation(%) |
≥35 |
≥35 |
≥35 |
Hydrostatic Test |
D(mm) |
Pmax
(Mpa) |
D(mm) |
Pmax
(Mpa) |
D(mm) |
Pmax
(Mpa) |
D<25.4 |
7 |
D<25.4 |
7 |
D≤88.9 |
17 |
25.4≤D<38.1 |
10 |
25.4≤D<38.1 |
10 |
38.1≤D<50.8 |
14 |
38.1≤D<50.8 |
14 |
50.8≤D<76.2 |
17 |
50.8≤D<76.2 |
17 |
D>88.9 |
19 |
76.2≤D<127 |
24 |
76.2≤D<127 |
24 |
D≥127 |
31 |
D≥127 |
31 |
P=220.6t/D |
P=220.6t/D |
P=2St/D S=50%Rp0.2 |
Intergranular Corrosion Test |
ASTM A262 E |
ASTM A262 E |
ASTM A262 E |
Eddy Current Test |
ASTM E426 |
ASTM E426 |
ASTM E426 |
O.D. Tolerance
(mm) |
O.D. |
O.D.
Tolerance |
O.D. |
O.D.
Tolerance |
O.D. |
O.D.
Tolerance |
D<25.4 |
+/-0.10 |
D<38.1 |
+/-0.13 |
10.3≤D≤48.3 |
+0.40/-0.80 |
25.4≤D≤38.1 |
+/-0.15 |
38.1<D<50.8 |
+/-0.20 |
38.1≤D<88.9 |
+/-0.25 |
48.3<D≤114.3 |
+0.80/-0.80 |
50.8≤D<63.5 |
+/-0.25 |
63.5≤D<76.2 |
+/-0.30 |
88.9≤D<139.7 |
+/-0.38 |
114.3<D≤219.1 |
+1.60/-0.80 |
76.2≤D≤101.6 |
+/-0.38 |
101.6<D≤190.5 |
+0.38/-0.64 |
139.7≤D<203.2 |
+/-0.76 |
219.1<D≤457.0 |
+2.40/-0.80 |
190.5<D≤228.6 |
+0.38/-1.14 |
W.T. Tolerance
(mm) |
O.D. |
W.T.
Tolerance |
O.D. |
W.T.
Tolerance |
O.D. |
W.T.
Tolerance |
D≤38.1 |
+20%/-0 |
D<12.7 |
+/-15% |
10.3≤D≤73.0 |
+20.0%/-12.5% |
12.7≤D<38.1 |
+/-10% |
88.9≤D≤457.0
t/D ≤5% |
+22.5%/-12.5% |
D>38.1 |
+22%/-0 |
D≥38.1 |
+/-10% |
88.9≤D≤457.0
t/D >5% |
+15.0%/-12.5% |
Seamless Stainless Steel Tubing Outside Diameter: |
6 - 830mm |
Seamless Stainless Steel Tubing Wall Thickness: |
0.50 - 60mm |
|
EN 10216-5; DIN 17456, DIN 17458, DIN 2462, DIN 17455 |
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GB/T14975; T14976; T13296; GB5310; |
Seamless Stainless Steel Tubing Standard(Norm): |
ASTM A213, A269, A312, A511, A789, A790, A928, A999, A1016, ASTM B161, ASTM B163, ASTM B165, ASTM B167, ASTM B338, ASTM B407, ASTM B423, ASTM B444,ASTM B619, ASTM B622, ASTM B626, ASTM B668, ASTM B677, ASTM B829 |
|
JIS G3459, JIS G3463, JIS G3446, JIS G3447, JIS G3448, JIS G3468 |
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GOST 9940;GOST 9941; |
Seamless Stainless Steel Pipe Schedule
Nominal Pipe Size |
|
Wall Thickness |
5s |
5 |
10s |
10 |
20 |
30 |
40s & Std |
40 |
60 |
80s & E.H. |
80 |
100 |
120 |
140 |
160 |
Dbl. E.H. |
1/8 |
.405 |
|
.035 |
.049 |
.049 |
|
|
.068 |
.068 |
|
.095 |
.095 |
|
|
|
|
|
1/4 |
.540 |
|
.049 |
.065 |
.065 |
|
|
.088 |
.088 |
|
.119 |
.119 |
|
|
|
|
|
3/8 |
.675 |
|
.049 |
.065 |
.065 |
|
|
.091 |
.091 |
|
.126 |
.126 |
|
|
|
|
|
1/2 |
.840 |
.065 |
.065 |
.083 |
.083 |
|
|
.109 |
.109 |
|
.147 |
.147 |
|
|
|
.187 |
.294 |
3/4 |
1.050 |
.065 |
.065 |
.083 |
.083 |
|
|
.113 |
.113 |
|
.154 |
.154 |
|
|
|
.218 |
.308 |
1 |
1.315 |
.065 |
.065 |
.109 |
.109 |
|
|
.133 |
.133 |
|
.179 |
.179 |
|
|
|
.250 |
.358 |
1 1/4 |
1.660 |
.065 |
.065 |
.109 |
.109 |
|
|
.140 |
.140 |
|
.191 |
.191 |
|
|
|
.250 |
.382 |
1 1/2 |
1.900 |
.065 |
.065 |
.109 |
.109 |
|
|
.145 |
.145 |
|
.200 |
.200 |
|
|
|
.281 |
.400 |
2 |
2.375 |
.065 |
.065 |
.109 |
.109 |
|
|
.154 |
.154 |
|
.218 |
.218 |
|
|
|
.343 |
.436 |
2 1/2 |
2.875 |
.083 |
.083 |
.120 |
.120 |
|
|
.203 |
.203 |
|
.276 |
.276 |
|
|
|
.375 |
.552 |
3 |
3.500 |
.083 |
.083 |
.120 |
.120 |
|
|
.216 |
.216 |
|
.300 |
.300 |
|
|
|
.437 |
.600 |
3 1/2 |
4.000 |
.083 |
.083 |
.120 |
.120 |
|
|
.226 |
.226 |
|
.318 |
.318 |
|
|
|
|
.636 |
4 |
4.500 |
.083 |
.083 |
.120 |
.120 |
|
|
.237 |
.237 |
.281 |
.337 |
.337 |
|
.437 |
|
.531 |
.674 |
4 1/2 |
5.000 |
|
|
|
|
|
|
.247 |
|
|
.355 |
|
|
|
|
|
.710 |
5 |
5.563 |
.109 |
.109 |
.134 |
.134 |
|
|
.258 |
.258 |
|
.375 |
.375 |
|
.500 |
|
.625 |
.750 |
6 |
6.625 |
.109 |
.109 |
.134 |
.134 |
|
|
.280 |
.280 |
|
.432 |
.432 |
|
.562 |
|
.718 |
.864 |
7 |
7.625 |
|
|
|
|
|
|
.301 |
|
|
.500 |
|
|
|
|
|
.875 |
8 |
8.625 |
.109 |
.109 |
.148 |
.148 |
.250 |
.277 |
.322 |
.322 |
.406 |
.500 |
.500 |
.593 |
.718 |
.812 |
.906 |
.875 |
9 |
9.625 |
|
|
|
|
|
|
.342 |
|
|
.500 |
|
|
|
|
|
|
10 |
10.750 |
.134 |
.134 |
.165 |
.165 |
.250 |
.307 |
.365 |
.365 |
.500 |
.500 |
.593 |
.718 |
.843 |
1.000 |
1.125 |
|
11 |
11.750 |
|
|
|
|
|
|
.375 |
|
|
.500 |
|
|
|
|
|
|
12 |
12.750 |
.156 |
.165 |
.180 |
.180 |
.250 |
.330 |
.375 |
.406 |
.562 |
.500 |
.687 |
.843 |
1.000 |
1.125 |
1.312 |
|
14 |
14.000 |
.156 |
|
.188 |
.250 |
.312 |
.375 |
.375 |
.437 |
.593 |
.500 |
.750 |
.937 |
1.093 |
1.250 |
1.406 |
|
16 |
16.000 |
.165 |
|
.188 |
.250 |
.312 |
.375 |
.375 |
.500 |
.656 |
.500 |
.843 |
1.031 |
1.218 |
1.437 |
1.593 |
|
18 |
18.000 |
.165 |
|
.188 |
.250 |
.312 |
.437 |
.375 |
.562 |
.750 |
.500 |
.937 |
1.156 |
1.375 |
1.562 |
1.781 |
|
20 |
20.000 |
.188 |
|
.218 |
.250 |
.375 |
.500 |
.375 |
.593 |
.812 |
.500 |
1.031 |
1.280 |
1.500 |
1.750 |
1.968 |
|
24 |
24.000 |
.218 |
|
.250 |
.250 |
.375 |
.562 |
.375 |
.687 |
.968 |
.500 |
1.218 |
1.531 |
1.812 |
2.062 |
2.343 |
|
26 |
26.000 |
|
|
|
.312 |
.500 |
|
.375 |
|
|
.500 |
|
|
|
|
|
|
28 |
28.000 |
|
|
|
312 |
.500 |
.625 |
.375 |
|
|
|
|
|
|
|
|
|
30 |
30.000 |
.250 |
|
.312 |
.312 |
.500 |
.625 |
.375 |
|
|
.500 |
|
|
|
|
|
|
32 |
32.000 |
|
|
|
.312 |
.500 |
.625 |
.375 |
.688 |
|
.500 |
|
|
|
|
|
|
34 |
34.00 |
|
|
|
.312 |
.500 |
.625 |
.375 |
.688 |
|
|
|
|
|
|
|
|
36 |
36.000 |
|
|
|
.312 |
|
.625 |
.375 |
.750 |
|
.500 |
|
|
|
|
|
|
Seamless Stainless Steel Tubing Size according to ASME B36.10M ASME B36.19M
Nominal Pipe Size ⅛ to Nominal Pipe Size 3½
Nominal Pipe Size |
DN
mm |
OD
inches (mm) |
Wall Thickness
inches (mm) |
SCH 5 |
SCH 10 |
SCH 30 |
SCH 40/STD |
SCH 80 |
SCH 120 |
SCH 160 |
XXS |
⅛ |
6 |
0.405 in (10.29 mm) |
0.035 in (0.889 mm) |
0.049 in (1.245 mm) |
0.057 in (1.448 mm) |
0.068 in (1.727 mm) |
0.095 in (2.413 mm) |
--- |
--- |
--- |
¼ |
8 |
0.540 in (13.72 mm) |
0.049 in (1.245 mm) |
0.065 in (1.651 mm) |
0.073 in (1.854 mm) |
0.088 in (2.235 mm) |
0.119 in (3.023 mm) |
--- |
--- |
--- |
⅜ |
10 |
0.675 in (17.15 mm) |
0.049 in (1.245 mm) |
0.065 in (1.651 mm) |
0.073 in (1.854 mm) |
0.091 in (2.311 mm) |
0.126 in (3.200 mm) |
--- |
--- |
--- |
½ |
15 |
0.840 in (21.34 mm) |
0.065 in (1.651 mm) |
0.083 in (2.108 mm) |
--- |
0.109 in (2.769 mm) |
0.147 in (3.734 mm) |
--- |
4.78mm |
0.294 in (7.47 mm) |
¾ |
20 |
1.050 in (26.67 mm) |
0.065 in (1.651 mm) |
0.083 in (2.108 mm) |
2.41mm |
0.113 in (2.870 mm) |
0.154 in (3.912 mm) |
--- |
5.56mm |
0.308 in (7.823 mm) |
1 |
25 |
1.315 in (33.40 mm) |
0.065 in (1.651 mm) |
0.109 in (2.769 mm) |
2.90mm |
0.133 in (3.378 mm) |
0.179 in (4.547 mm) |
--- |
6.35mm |
0.358 in (9.093 mm) |
1¼ |
32 |
1.660 in (42.16 mm) |
0.065 in (1.651 mm) |
0.109 in (2.769 mm) |
0.117 in (2.972 mm) |
0.140 in (3.556 mm) |
0.191 in (4.851 mm) |
--- |
6.35mm |
0.382 in (9.703 mm) |
1½ |
40 |
1.900 in (48.26 mm) |
0.065 in (1.651 mm) |
0.109 in (2.769 mm) |
0.125 in (3.175 mm) |
0.145 in (3.683 mm) |
0.200 in (5.080 mm) |
--- |
7.14mm |
0.400 in (10.160 mm) |
2 |
50 |
2.375 in (60.33 mm) |
0.065 in (1.651 mm) |
0.109 in (2.769 mm) |
0.125 in (3.175 mm) |
0.154 in (3.912 mm) |
0.218 in (5.537 mm) |
0.250 in (6.350 mm) |
8.74mm |
0.436 in (11.074 mm) |
2½ |
65 |
2.875 in (73.02 mm) |
0.083 in (2.108 mm) |
0.120 in (3.048 mm) |
0.188 in (4.775 mm) |
0.203 in (5.156 mm) |
0.276 in (7.010 mm) |
0.300 in (7.620 mm) |
0.344 in (8.738 mm) |
0.552 in (14.021 mm) |
3 |
80 |
3.500 in (88.90 mm) |
0.083 in (2.108 mm) |
0.120 in (3.048 mm) |
0.188 in (4.775 mm) |
0.216 in (5.486 mm) |
0.300 in (7.620 mm) |
0.350 in (8.890 mm) |
0.438 in (11.13 mm) |
0.600 in (15.240 mm) |
3½ |
90 |
4.000 in (101.60 mm) |
0.083 in (2.108 mm) |
0.120 in (3.048 mm) |
0.188 in (4.775 mm) |
0.226 in (5.740 mm) |
0.318 in (8.077 mm) |
--- |
--- |
0.636 in (16.154 mm) |
Nominal Pipe Size 4 to Nominal Pipe Size 9
NPS |
DN
mm |
OD
inches (mm) |
Wall thickness
inches (mm) |
SCH 5 |
SCH 10 |
SCH 20 |
SCH 30 |
SCH 40/STD |
SCH 60 |
SCH 80 |
SCH 100 |
SCH 120 |
SCH 140 |
SCH 160 |
4 |
100 |
4.500 in (114.30 mm) |
0.083 in (2.108 mm) |
0.120
in
(3.
048 mm) |
--- |
0.188
in
(4.
775 mm) |
0.237 in (6.02 mm) |
0.281
in (7.137 mm) |
0.337 in (8.560 mm) |
--- |
0.437
in (11.13 mm) |
--- |
0.531
in (13.49 mm) |
4½ |
115 |
5.000 in (127.00 mm) |
--- |
--- |
--- |
--- |
0.247 in (6.274 mm) |
--- |
0.355 in (9.017 mm) |
--- |
--- |
--- |
--- |
5 |
125 |
5.563 in (141.30 mm) |
0.109 in (2.769 mm) |
0.134
in
(3.404 mm) |
--- |
--- |
0.258 in (6.553 mm) |
--- |
0.375 in (9.525 mm) |
--- |
0.500
in (12.70 mm) |
--- |
0.625
in (15.875 mm) |
6 |
150 |
6.625 in (168.27 mm) |
0.109 in (2.769 mm) |
0.134
in (3.404 mm) |
--- |
--- |
0.280 in (7.112 mm) |
--- |
0.432 in (10.973 mm) |
--- |
0.562
in (14.27 mm) |
--- |
0.719
in (18.263 mm) |
8 |
200 |
8.625 in (219.08 mm) |
0.109 in (2.769 mm) |
0.148
in (3.759 mm) |
0.250
in
(6.
35 mm) |
0.277
in
(7.
036 mm) |
0.322 in (8.179 mm) |
0.406
in
(10.
312 mm) |
0.500 in (12.70 mm) |
0.593
in
(15.
09 mm) |
0.718
in (18.2 6mm) |
0.812
in
(20.
62mm) |
0.906
in (23.01 mm) |
Nominal Pipe Size 10 to Nominal Pipe Size 24
Nominal Pipe Size |
DN
mm |
OD
inches (mm) |
Wall Thickness
inches (mm) |
SCH 5s |
SCH 5 |
SCH 10s |
SCH 10 |
SCH 20 |
SCH 30 |
10 |
250 |
10.75 in (273.05 mm) |
0.134 in (3.404 mm) |
0.134 in (3.404 mm) |
0.165 in (4.191 mm) |
0.165 in (4.191 mm) |
0.250 in (6.350 mm) |
0.307 in (7.798 mm) |
12 |
300 |
12.75 in (323.85 mm) |
0.156 in (3.962 mm) |
0.165 in (4.191 mm) |
0.180 in (4.572 mm) |
0.180 in (4.572 mm) |
0.250 in (6.350 mm) |
0.330 in (8.382 mm) |
14 |
350 |
14.00 in (355.60 mm) |
0.156 in (3.962 mm) |
0.156 in (3.962 mm) |
0.188 in (4.775 mm) |
0.250 in (6.350 mm) |
0.312 in (7.925 mm) |
0.375 in (9.525 mm) |
16 |
400 |
16.00 in (406.40 mm) |
0.165 in (4.191 mm) |
0.165 in (4.191 mm) |
0.188 in (4.775 mm) |
0.250 in (6.350 mm) |
0.312 in (7.925 mm) |
0.375 in (9.525 mm) |
18 |
450 |
18.00 in (457.20 mm) |
0.165 in (4.191 mm) |
0.165 in (4.191 mm) |
0.188 in (4.775 mm) |
0.250 in (6.350 mm) |
0.312 in (7.925 mm) |
0.437 in (11.100 mm) |
20 |
500 |
20.00 in (508.00 mm) |
0.188 in (4.775 mm) |
0.188 in (4.775 mm) |
0.218 in (5.537 mm) |
0.250 in (6.350 mm) |
0.375 in (9.525 mm) |
0.500 in (12.700 mm) |
24 |
600 |
24.00 in (609.60 mm) |
0.218 in (5.537 mm) |
0.218 in (5.537 mm) |
0.250 in (6.350 mm) |
0.250 in (6.350 mm) |
0.375 in (9.525 mm) |
0.562 in (14.275 mm) |
Nominal Pipe Size |
Wall thickness
inches (mm) |
SCH 40s |
SCH 40 |
SCH 60 |
SCH 80s |
SCH 80 |
SCH 100 |
SCH 120 |
SCH 140 |
SCH 160 |
10 |
0.365 in (9.271 mm) |
0.365 in (9.271 mm) |
0.500 in (12.700 mm) |
0.500 in (12.700 mm) |
0.593 in (15.062 mm) |
0.718 in (18.237 mm) |
0.843 in (21.412 mm) |
1.000 in (25.400 mm) |
1.125 in (28.575 mm) |
12 |
0.375 in (9.525 mm) |
0.406 in (10.312 mm) |
0.500 in (12.700 mm) |
0.500 in (12.700 mm) |
0.687 in (17.450 mm) |
0.843 in (21.412 mm) |
1.000 in (25.400 mm) |
1.125 in (28.575 mm) |
1.312 in (33.325 mm) |
14 |
0.375 in (9.525 mm) |
0.437 in (11.100 mm) |
0.593 in (15.062 mm) |
0.500 in (12.700 mm) |
0.750 in (19.050 mm) |
0.937 in (23.800 mm) |
1.093 in (27.762 mm) |
1.250 in (31.750 mm) |
1.406 in (35.712 mm) |
16 |
0.375 in (9.525 mm) |
0.500 in (12.700 mm) |
0.656 in (16.662 mm) |
0.500 in (12.700 mm) |
0.843 in (21.412 mm) |
1.031 in (26.187 mm) |
1.218 in (30.937 mm) |
1.437 in (36.500 mm) |
1.593 in (40.462 mm) |
18 |
0.375 in (9.525 mm) |
0.562 in (14.275 mm) |
0.750 in (19.050 mm) |
0.500 in (12.700 mm) |
0.937 in (23.800 mm) |
1.156 in (29.362 mm) |
1.375 in (34.925 mm) |
1.562 in (39.675 mm) |
1.781 in (45.237 mm) |
20 |
0.375 in (9.525 mm) |
0.593 in (15.062 mm) |
0.812 in (20.625 mm) |
0.500 in (12.700 mm) |
1.031 in (26.187 mm) |
1.280 in (32.512 mm) |
1.500 in (38.100 mm) |
1.750 in (44.450 mm) |
1.968 in (49.987 mm) |
24 |
0.375 in (9.525 mm) |
0.687 in (17.450 mm) |
0.968 in (24.587 mm) |
0.500 in (12.700 mm) |
1.218 in (30.937 mm) |
1.531 in (38.887 mm) |
1.812 in (46.025 mm) |
2.062 in (52.375 mm) |
2.343 in (59.512 mm) |
|
|