Reliable Steel is a leading distributors and exporter of Ferritic Martensitic pipes in mostly countries. We offer best quality ferritic martensitic pipes but we are specialised in ASTM A268 pipes of several grades such as TP405, TP409, TP410, 410L, 430, and 446, as well as UNS S44660. These tubes are used for general corrosion and high-temperature applications and are available in seamless or welded forms.
Email us Whatsapp us Call usASTM A268 specification covers standard specification for a number of grades of nominal-wall-thickness, welded ferritic and martensitic stainless steel tubing for general corrosion-resisting and high-temperature service. ASTM A268 tubes shall be made by seamless and welded process with no filler metal added.As a final heat treatment ASTM A268 Tubing shall be reheated to temperature of 1200°F [650° C] or higher and cooled to meet the requirements of specification.SS 410 Welded Tubes stainless steel is soaked at 649-760°C (1200-1400°F) and then cooled in air. Shielded fusion and resistance methods are recommended for welding grade Stainless Steel 430 Seamless Tubes stainless steel.Oxyacetylene welding is not suitable for this stainless steel grade.Hardening of ASTM A268 tp439 Seamless Tubing is controlled by the use of 405 Cb electrodes that contain columbium.Ductility of AISI 405 Seamless Tubes is maximized by post weld annealing.ASME SA268 Stainless Steel 409 Welded Tubes are soaked at 817-871°C (1500-1600°F) and the temperature is then increased to 1038-1121°C (1900-2050°F). ASTM A268 Stainless Steel 429 Seamless Tubes can be hardened by soaking at 982-1010°C (1800-1850°F) and then oil quenched.
| Specifications | : | ASTM A268 / SA 268 |
| Dimensions | : | ASTM, ASME and API |
| Size | : | 1/4" (6.25mm) to 8" (203mm), WT 0.02" (0.5mm) to 0.5"(12mm) |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Specialized in | : | Large Diameter Size |
| Length | : | Single Random, Double Random & Cut Length. |
| Form | : | Round, Square, Rectangular, Hydraulic Etc |
| End | : | Plain End, Beveled End, Treaded |
| Grade | TP 405 | TP 410 | TP 429 | TP 430 | TP 443 | TP 446-1 | TP 446-2A | … | TP 409 |
| UNS DesignationB |
S40500 | S41000 | S42900 | S43000 | S44300 | S44600 | S44600 | S40800 | S40900 |
| Element | Composition, % | ||||||||
| C, max | 0.18 | 0.15 | 0.12 | 0.12 | 0.20 | 0.20 | 0.12 | 0.08 | 0.08 |
| Mn, max | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.50 | 1.50 | 1.00 | 1.00 |
| P, max | 0.040 | 0.040 | 0.040 | 0.040 | 0.040 | 0.040 | 0.040 | 0.045 | 0.045 |
| S, max | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.045 | 0.045 |
| Si, max | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 1.00 | 1.00 |
| Ni | 0.50max | 0.50max | 0.50max | 0.50max | 0.50max | 0.50max | 0.50max | 0.80max | 0.50max |
| Cr | 11.5-13.5 | 11.5-13.5 | 14.0-16.0 | 16.0-18.0 | 18.0-23.0 | 23.0-30.0 | 23.0-30.0 | 11.5-13.0 | 10.50-11.75 |
| Mo | … | … | … | … | … | … | … | … | … |
| Al | 0.10-0.30 | … | … | … | … | … | … | … | … |
| Cu | … | … | … | … | 0.90-0.25 | … | … | … | … |
| N | … | … | … | … | … | 0.10-0.25 | 0.10-0.25 | … | … |
| Ti | … | … | … | … | … | … | … | 12xC min; 1.10max |
6xC min; 0.75max |
|
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
|