What is Stainless Steel 420 Pipe
Stainless steel 420 pipes belong to a martensitic steel grade containing high carbon content. The pipes in this grade are designed with good chromium content that showcases excellent corrosion resistance in stress-induced environments when they are polished. The versatile grade exhibits a scaling resistance to temperatures up to 650 degrees C. The material has the highest hardness of 50HRC and can be easily machined to precisely shape the components.
What is the difference between ASTM A312 Gr TP420 and ASME SA312 Gr TP420
Which is better 420 stainless steel tubing or SS 420 ERW pipe?
Pipes and tubes are two common piping modules employed in the SS 420 grade. These components have some varying characteristics and work optimally well across different systems. An erw pipe of this grade can be employed in connecting large sections in place when compared to a steel tubing of 420 grade. The versatile tubing can be shaped in different shapes and has a higher load-bearing capacity than a pipe.
Stainless Steel 420 Seamless vs Welded Pipe
Seamless and welded pipes are two configurations used to manufacture stainless steel 420 grade. Both these types can be distinguished based on certain features.
What is ASME SA 312 SUS 420 Round Pipe
ASME SA 312 SUS 420 round pipe is a module designed in seamless or welded configurations. The pipes have a circular cross-sectional area and require specialized material to manufacture them.
Table of Content
Specifications | ASTM/ASME A 312/ SA 312 |
---|---|
Size | 1/8″NB to 30″NB IN |
Dimensions | ASME, ASTM and API |
Schedule | Schedule20, Schedule30, Schedule40, STD, Schedule80, XS, Schedule60, Schedule80, Schedule120, Schedule140, Schedule160, XXS |
SS 420 Pipes | 1/2 NB to 16 NB |
Type | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
ERW 420 Pipes | 1/2 NB to 24 NB |
Form | “U” Shape, Custom Pipes, Round Pipes, Hydraulic Pipes |
EFW 420 Pipes | 6 NB to 100 NB |
End | Beveled End, Plain End, Treaded |
Length | Double Random, Single Random, & Cut Length. |
Grade | S | C | Cr | Mn | MO | Si | Ni | P | CU | |
---|---|---|---|---|---|---|---|---|---|---|
420 | Min | - | - | 12.0 | - | - | - | - | - | - |
max | 0.03 | 0.15 | 14.0 | 1.00 | - | 1.00 | - | 0.04 | - |
Grade | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Tensile Strength (MPa) min | Hardness | |
---|---|---|---|---|---|
Rockwell B (HR B) | Brinell (HB) | ||||
420 | 25 | 50,000 | 95,000 | - | 175 |
Grade | Elastic Modulus (GPa) | Density (kg/m3) | Mean Coefficient of Thermal Expansion (μm/m/°C) |
Specific Heat 0-100°C (J/kg.K) |
Thermal Conductivity (W/m.K) |
Electrical Resistivity (nΩ.m) | |||
---|---|---|---|---|---|---|---|---|---|
0-315°C | 0-100°C | 0-538°C | at 100°C | at 500°C | |||||
420 | 300 | 7900 | 11.8 | 11.5 | 11.9 | 480 | 25.9 | - | 570 |
NB Sizes | Schedule 5 | Schedule 10 | Schedule 40 | Schedule 80 | Schedule 160 |
---|---|---|---|---|---|
1 1/4″ | ✓ | ✓ | ✓ | ✓ | ✓ |
1/8″ | ✓ | ✓ | ✓ | ✓ | |
2″ | ✓ | ✓ | ✓ | ✓ | ✓ |
1/4″ | ✓ | ✓ | ✓ | ✓ | |
2 1/2″ | ✓ | ✓ | ✓ | ✓ | ✓ |
3/8″ | ✓ | ✓ | ✓ | ✓ | |
3″ | ✓ | ✓ | ✓ | ✓ | ✓ |
1/2″ | ✓ | ✓ | ✓ | ✓ | ✓ |
4″ | ✓ | ✓ | ✓ | ✓ | ✓ |
3/4″ | ✓ | ✓ | ✓ | ✓ | ✓ |
6″ | ✓ | ✓ | ✓ | ✓ | |
1″ | ✓ | ✓ | ✓ | ✓ | ✓ |
8″ | ✓ | ✓ | ✓ | ✓ | ✓ |
1 1/2″ | ✓ | ✓ | ✓ | ✓ | ✓ |
5″ | ✓ | ✓ | ✓ | ✓ | |
14″ | ✓ | ✓ | ✓ | ✓ | ✓ |
10″ | ✓ | ✓ | ✓ | ✓ | ✓ |
16″ | ✓ | ✓ | ✓ | ✓ | ✓ |
12″ | ✓ | ✓ | ✓ | ✓ | ✓ |
Wall | Sizes ( O.D.) |
---|---|
.095 | 1/2 , 5/8 , 1 , 1 1/4 , 1 1/2 , 2″ |
.010 | 1/16 , 1/8 , 3/16″ |
.083 | 1/4 , 3/8 , 1/2 , 5/8 , 3/4 , 7/8 , 1 , 1 1/4 , 1 1/2 , 1 5/8 , 1 7/8 , 2 , 2 1/2 ,3″ |
.020 | 1/16 , 1/8 , 3/16 , 1/4 , 5/16 , 3/8″ |
.109 | 1/2 , 3/4 , 1 , 1 1/4 , 1 1/2 , 2″ |
.012 | 1/8″ |
.120 | 1/2 , 5/8 , 3/4 , 7/8 , 1 , 1 1/4 , 1 1/2 , 2 , 2 1/4 , 2 1/2 , 3″ |
.016 | 1/8 , 3/16″ |
.028 | 1/8 , 3/16 , 1/4 , 5/16 , 3/8 , 1/2 , 3/4 , 1 , 1 1/2 , 2″ |
.125 | 3/4 , 1 , 1 1/4 , 1 1/2 , 2 , 3 , 3 1/4″ |
.035 | 1/8 , 3/16 , 1/4 , 5/16 , 3/8 , 7/16 , 1/2 , 16 , 5/8 , 3/4 , 7/8 , 1 , 1 1/4 , 1 1/2 , 1 5/8 , 2 , 2 1/4″ |
.134 | 1″ |
.049 | 3/16 , 1/4 , 5/16 , 3/8 , 1/2 , 16 , 5/8 , 3/4 , 7/8 , 1 , 1 1/8 , 1 1/4 , 1 1/2 , 1 5/8 , 2 , 2 1/4″ |
.375 | 3 1/2″ |
.065 | 1/4 , 5/16 , 3/8 , 1/2 , 16 , 5/8 , 3/4 , 7/8 , 1 , 1 1/4 , 1 1/2 , 1 5/8 , 1 3/4 , 2 , 2 1/2 , 3″ |
.250 | 3″ |
STANDARD | JIS | WERKSTOFF NR. | BS | UNS | EN |
---|---|---|---|---|---|
SS 420 | SUS 420J1 | 1.4021 | 420S29 | S42000 | X20Cr13 |
Nominal size [inches] | Outside diameter [inches] | Outside diameter [mm] | Weight [lb/ft] | Weight [kg/m] | Wall thickness [inches] | Wall thickness [mm] |
---|---|---|---|---|---|---|
16 | 16,000 | 406,4 | 192,43 | 286,64 | 1,219 | 30,96 |
4 | 4,500 | 114,3 | 19,00 | 28,32 | 0,438 | 11,13 |
14 | 14,000 | 355,6 | 150,79 | 224,65 | 1,094 | 27,79 |
5 | 5,563 | 141,3 | 27,04 | 40,28 | 0,500 | 12,7 |
20 | 20,000 | 508,0 | 296,37 | 441,49 | 1,500 | 38,10 |
6 | 6,625 | 168,3 | 36,39 | 54,20 | 0,562 | 14,27 |
22 | 22,000 | 559,0 | 353,61 | 527,02 | 1,625 | 41,28 |
8 | 8,625 | 219,1 | 60,71 | 90,44 | 0,719 | 18,26 |
24 | 24,000 | 610,0 | 429,39 | 640,03 | 1,812 | 46,02 |
10 | 10,750 | 273,0 | 89,29 | 133,06 | 0,844 | 21,44 |
18 | 18,000 | 457,0 | 244,14 | 363,56 | 1,375 | 34,93 |
12 | 12,750 | 323,8 | 125,49 | 186,97 | 1,000 | 25,4 |
Pipe Size (in) |
Nominal Thickness (in) mm |
Diameter (in) mm |
Volume (ft3/ft) |
Transverse Areas (in2) mm2 |
Length of Pipe (ft per sq. foot of surface) |
Number of Threads per inch of Screw | Weight | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
External | Internal | External | Steel | Internal | External Surface (ft) |
Internal Surface (ft) |
(lb/ft) | (kg/m) | ||||
5 | 0.26 | 5.563 | 5.05 | 0.1389 | 24.30 | 4.30 | 20.00 | 0.69 | 0.76 | 8 | 14.61 | 21.74 |
1/8 | 0.07 | 0.405 | 0.27 | 0.0004 | 0.13 | 0.07 | 0.06 | 9.43 | 14.20 | 27 | 0.24 | 0.36 |
4 | 0.24 | 4.500 | 4.03 | 0.0884 | 15.90 | 3.17 | 12.73 | 0.85 | 0.95 | 8 | 10.79 | 16.06 |
¼ | 0.09 | 0.540 | 0.36 | 0.0007 | 0.23 | 0.13 | 0.10 | 7.07 | 10.49 | 18 | 0.42 | 0.63 |
8 | 0.32 | 8.625 | 7.98 | 0.3552 | 58.42 | 8.40 | 50.02 | 0.44 | 0.48 | 8 | 28.55 | 42.49 |
3/8 | 0.09 | 0.675 | 0.49 | 0.0013 | 0.36 | 0.17 | 0.19 | 5.66 | 7.75 | 18 | 0.57 | 0.84 |
10 | 0.37 | 10.750 | 10.02 | 0.5476 | 90.76 | 11.90 | 78.85 | 0.36 | 0.38 | 8 | 40.48 | 60.24 |
½ | 0.11 | 0.840 | 0.62 | 0.0021 | 0.55 | 0.25 | 0.30 | 4.55 | 6.14 | 14 | 0.85 | 1.26 |
12 | 0.41 | 12.750 | 11.94 | 0.7763 | 127.64 | 15.74 | 111.90 | 0.30 | 0.32 | 8 | 53.60 | 79.77 |
¾ | 0.11 | 1.050 | 0.82 | 0.0037 | 0.87 | 0.33 | 0.53 | 3.64 | 4.64 | 14 | 1.13 | 1.68 |
6 | 0.28 | 6.625 | 6.07 | 0.2006 | 34.47 | 5.58 | 28.89 | 0.58 | 0.63 | 8 | 18.97 | 28.23 |
1 | 0.13 | 1.315 | 1.05 | 0.0060 | 1.36 | 0.49 | 0.86 | 2.90 | 3.64 | 11 ½ | 1.68 | 2.50 |
16 | 0.50 | 16.000 | 15.00 | 1.2230 | 201.05 | 24.35 | 176.70 | 0.24 | 0.25 | 8 | 78.00 | 116.08 |
1 ¼ | 0.14 | 1.660 | 1.38 | 0.0104 | 2.16 | 0.67 | 1.50 | 2.30 | 2.77 | 11 ½ | 2.27 | 3.38 |
14 | 0.44 | 14.000 | 13.13 | 0.9354 | 153.94 | 18.64 | 135.30 | 0.27 | 0.28 | 8 | 63.00 | 93.75 |
1 ½ | 0.15 | 1.900 | 1.61 | 0.0141 | 2.84 | 0.80 | 2.04 | 2.01 | 2.37 | 11 ½ | 2.72 | 4.04 |
18 | 0.56 | 18.000 | 16.88 | 1.5550 | 254.85 | 30.85 | 224.00 | 0.21 | 0.23 | 8 | 105.00 | 156.26 |
2 | 0.15 | 2.375 | 2.07 | 0.0233 | 4.43 | 1.08 | 3.36 | 1.61 | 1.85 | 11 ½ | 3.65 | 5.43 |
20 | 0.59 | 20.000 | 18.81 | 1.9260 | 314.15 | 36.15 | 278.00 | 0.19 | 0.20 | 8 | 123.00 | 183.05 |
2 ½ | 0.20 | 2.875 | 2.47 | 0.0333 | 6.49 | 1.70 | 4.79 | 1.33 | 1.55 | 8 | 5.79 | 8.62 |
24 | 0.69 | 24.000 | 22.63 | 2.7930 | 452.40 | 50.30 | 402.10 | 0.16 | 0.17 | 8 | 171.00 | 254.48 |
3 | 0.22 | 3.500 | 3.07 | 0.0513 | 9.62 | 2.23 | 7.39 | 1.09 | 1.25 | 8 | 7.58 | 11.27 |
3 ½ | 0.23 | 4.000 | 3.55 | 0.0687 | 12.56 | 2.68 | 9.89 | 0.95 | 1.08 | 8 | 9.11 | 13.56 |
SS Pipe Size(inches) | SS Pipe Schedule | Temperature(F) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
100 | 200 | 300 | 400 | 500 | 600 | 650 | 700 | 750 | ||
1 1/2″ | 40 | 2257 | 1947 | 1750 | 1608 | 1496 | 1425 | 1383 | 1354 | 1340 |
80 | 3182 | 2744 | 2466 | 2267 | 2108 | 2009 | 1949 | 1909 | 1889 | |
160 | 4619 | 3984 | 3580 | 3291 | 3060 | 2916 | 2829 | 2772 | 2743 | |
1″ | 40 | 3048 | 2629 | 2362 | 2171 | 2019 | 1924 | 1867 | 1824 | 1810 |
80 | 4213 | 3634 | 3265 | 3002 | 2791 | 2659 | 2580 | 2528 | 2501 | |
160 | 6140 | 5296 | 4759 | 4375 | 4068 | 3876 | 3761 | 3684 | 3646 | |
2″ | 40 | 1902 | 1640 | 1474 | 1355 | 1260 | 1201 | 1165 | 1141 | 1129 |
80 | 2747 | 2369 | 2129 | 1957 | 1820 | 1734 | 1682 | 1648 | 1631 | |
160 | 4499 | 3880 | 3486 | 3205 | 2980 | 2840 | 2755 | 2699 | 2671 | |
4″ | 40 | 1531 | 1321 | 1187 | 1091 | 1014 | 967 | 938 | 919 | 909 |
80 | 2213 | 1909 | 1715 | 1577 | 1466 | 1397 | 1355 | 1328 | 1314 | |
160 | 3601 | 3106 | 2791 | 2566 | 2386 | 2273 | 2206 | 2161 | 2138 | |
3″ | 40 | 1806 | 1558 | 1400 | 1287 | 1196 | 1140 | 1106 | 1084 | 1072 |
80 | 2553 | 2202 | 1979 | 1819 | 1691 | 1612 | 1564 | 1532 | 1516 | |
160 | 3840 | 3312 | 2976 | 2736 | 2544 | 2424 | 2352 | 2304 | 2280 | |
6 | 40 | 1219 | 1052 | 945 | 869 | 808 | 770 | 747 | 732 | 724 |
80 | 1913 | 1650 | 1483 | 1363 | 1267 | 1208 | 1172 | 1148 | 1136 | |
160 | 3289 | 2836 | 2549 | 2343 | 2179 | 2076 | 2014 | 1973 | 1953 | |
10″ | 40 | 974 | 840 | 755 | 694 | 645 | 615 | 596 | 584 | 578 |
80 | 1609 | 1388 | 1247 | 1147 | 1066 | 1016 | 986 | 966 | 56 | |
160 | 3147 | 2714 | 2439 | 2242 | 2085 | 1986 | 1927 | 1880 | 1868 | |
5″ | 40 | 1342 | 1158 | 1040 | 956 | 889 | 847 | 822 | 805 | 797 |
80 | 1981 | 1709 | 1535 | 1411 | 1312 | 1250 | 1213 | 1189 | 1176 | |
160 | 3414 | 2945 | 2646 | 2433 | 2262 | 2155 | 2091 | 2049 | 2027 | |
8″ | 40 | 1073 | 926 | 832 | 765 | 711 | 678 | 657 | 644 | 637 |
80 | 1692 | 1459 | 1311 | 1205 | 1121 | 1068 | 1036 | 1015 | 1005 | |
160 | 3175 | 2738 | 2460 | 2262 | 2103 | 2004 | 1944 | 1905 | 1885 |
SS 420 Pipe OD | AISI 420 Seamless Pipe Tolerance |
---|---|
4 to 35mm | +/- 0.08mm |
35 to 38mm | +/- 0.15mm |
38 to 60mm | +/- 0.20mm |
60 and above | +/- 0.25mm |
Surface features | Surface roughness (Ra) value | Examples of processing methods |
---|---|---|
Dark glossy surface | Ra0.2, Ra0.1, Ra0.05 | Grinding, honing, super-fine grinding, polishing |
Clearly visible knife marks | Ra100, Ra50, Ra25 | Rough turning, rough planing, rough milling, drilling |
No visible processing marks | Ra1.6, Ra0.8, Ra0.4 | Fine turning, fine grinding, fine hinge, grinding |
Slightly seen knife marks | Ra12.5, Ra6.3, Ra3.2 | Fine turning, fine planing, fine milling, rough hinge, rough grinding |
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AISI 420 Pipes | SS UNS S42000 Welded Pipes |
Stainless Steel 420 Welded Pipes | ASME SA 312 Tp 420 Condenser Tubes |
420 Stainless Steel Pipes | DIN 1.4021 Tubing |
420 SS Erw Pipes | ASME SA 312 AISI 420 Stainless Steel Pipe |
Stainless Steel 420 Efw Pipes | SA 312 TP 420 ERW Pipes |
Astm A312 Tp420 Pipes | 420 SS Thin Wall Pipes |
1.4021 Pipes | Sus 420 Hollow Pipes |
Stainless Steel 420 Seamless Pipes | Asme Sa312 Tp420 Welded Pipes |
Uns S42000 Pipes | Ss 420 Industrial Pipes |
Stainless Steel 420 Pipes | SS 420 Seamless Pipes |
Ss 420 Pipes | S42000 Steel Welded Pipes |
Stainless Steel 420 Thick Wall Pipes | 420 SS Seamless Tubes |
Stainless Steel 420 Pipes | DIN 1.4021 Steel 420 Welded Tube |
420 SS Pipes | 420 Nssmc Original Stainless Pipes |
Buy SS 420 Pipes | S42000 Stainless Steel Round Pipes |
ASTM A312 Gr TP420 Seamless Pipes | Steel 420 EFW Pipes |
420 Stainless Steel Welded Tube | SS 420 Tubes |
ASME B36.19 UNS S42000 Schedule 40 Pipes | Steel 420 Round Pipes |
ASME SA 312 SUS 420 Round Pipes | Stainless Steel 420 Seamless Pipes |
SS 420 ERW Pipes | SS 420 Hollow Tubes |
Austenitic Stainless Steel Railing Pipes | SS S42000 Pipes |
420 SS Schedule 40 Pipes | SS 420 Tubacex Original Stainless Pipes |
Stainless Steel 420 Capillary Tubing | DIN 1.4021 Steel 420 Fabricated Welded Pipes |
ASTM A312 TP 420 Round Pipes | SS Grade 1.4021 Polished Pipes |
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Stainless Steel 420 Seamless Pipe
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ASME B36.19 UNS S42000 Schedule 40 Pipe
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ASTM A312 TP 420 Round Pipe
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SS 420 Tubes
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