Alloy AISI 4340 is made from low alloy elements which possess good strength. The AISI 4340 Tube is made with a high chemical composition of nickel, chromium, and molybdenum. This makes these tubes highly resistant to corrosion and oxidation in different environments. The 4340 Chromoly Tubing enables it to exist in high-pressures and elevated temperature systems. This tubing can be formed by standard hot-rolling or cold-rolling procedures. The AISI 4340 Alloy Steel Tube exhibits exceptional strength and excellent mechanical properties. These tubes have a minimum tensile strength of 1014Mpa and a minimum yield strength of 835Mpa. The AISI 4340 Steel Pipe can be easily machined and fabricated. These pipes can be easily elongated by 13% and still exhibit excellent workability. They possess a hardness between 248 to 444 Brinell. We follow the standard processes and tests followed by the leading AISI 4340 Tube Suppliers.
The SAE 4340 Pipe is designed with excellent shock and wear resistance. These pipes offer good ductility and excellent reliability. They can be hardened or annealed on request. An SAE 4340 Seamless Pipe is designed without the requirement of welds or seams. The single sheet pipe possesses exceptional strength and enhanced performance. They are a little expensive due to the materials used in their production. A519 Gr 4340 Steel Tube is a high-performance tube that exhibits exceptional strength. These pipes exhibit a sturdy construction with an excellent finish. They have a long service life in stress-induced environments. ASTM A519 Grade 4340 Tube can be availed in single random, double random, and custom sizes.
A 4340 Square Tube is a strong tube that is welded on the interior to give its desired shapes. These tubes are a preferred choice due to their lower processing costs. This AISI 4340 Square Tubing is highly versatile and is widely used in chemical systems, oil and gas processing, power transmission, aircraft landing gears, shafts, and so on. The AISI 4340 Rectangular Tube is used in maintenance and structural systems. These tubes can be availed in plain, beveled, coiled, and threaded tubing ends. We are the 4340 tubing suppliers who can custom design all our products to meet all your requirements. If you want to learn more about our products, contact us for more information.
Normalized | Annealed | |
---|---|---|
Tensile Strength | 185,500 psi | 108,000 psi |
Yield Strength | 125,000 psi | 68,500 psi |
Elongation (2") | 12.2% | 22% |
Reduction in Area | 36.3% | 49.9% |
Brinell Hardness | 363 | 217 |
Specification | ASTM A519/ ASME SA519 |
---|---|
Thickness | 3 - 12 millimeter, Cut to length |
Schedule Thickness Ranges | SCH XS, SCH 40, SCH 80S, SCH 5, SCH 80, SCH XXS, SCH 160, SCH10, All Schedules |
Tolerance | Cold rolled tube: +/-0.05 millimetre Cold drawn tube: +/-0.1 millimetre |
Form | Hydraulic, Square, Rectangular, Round Etc. |
Sizes | 1/2" NB to 36" NB |
End | Beveled, Threaded, Plain |
Type | Welded | CDW | ERW | DOM | Seamless | Fabricated | CEW | LSAW |
Surface Finish | 2B, No.1, No.4, No.8 Mirror Finish |
Length | Single and Double Random, Cut to Length |
Delivery Condition | Annealed & Pickled, Polished, Bright & Annealed, etc |
Properties | Metric | Imperial |
---|---|---|
Melting point | 1432°C | 2610°F |
Standard | ASTM A519 | EN 10297 | BS 3059 | JIS G3441 |
---|---|---|---|---|
Grades | 4340 | 36CrNiMo4/ 1.6511 |
EN24/817M40 | SNCM 439/SNCM8 |
Properties | Metric | Imperial |
---|---|---|
Density | 7.85 g/cm3 | 0.284 lb/in³ |
Product | Price |
ASTM A519 AISI 4340 Alloy Seamless Round Tube | $18.00 - $22.50/ Kilogram |
Alloy Steel SAE 4340 Pipe | $530.00 - $550.00/ Ton |
AISI 4340 alloy cold drawn seamless steel pipe | $645.00 - $980.00/ Ton |
140mm 75mm 46mm 4340 Boiler Precision Seamless Steel Tube | $548.00 - $690.00/ Metric Ton |
Many AISI 4340 Tubing suppliers, stockholders, retailers, distributors, stockists, dealers, wholesalers, importers, and exporters find your sizes in our stock of 4340 Alloy Steel Tube in Mumbai, Choose us for the best price of 4340 Chromoly Steel Pipe in India, Contact for a Quick Quote!
O.D. * Thk. | O.D. * Thk. | O.D. * Thk. |
---|---|---|
57 * 4.9 | 38.1 * 3.2 | 76.2 * 4 |
57 * 6.3 | 38.1 * 4 | 76.2 * 5 |
57 * 7.9 | 38.1 * 6.3 | 76.2 * 6.3 |
60.3 * 3.2 | 42.4 * 3.2 | 82.5 * 4.5 |
60.3 * 3.6 | 42.4 * 4 | 88.9 * 3.2 |
60.3 * 5 | 44.5 * 3.2 | 88.9 * 3.6 |
63.5 * 3.2 | 44.5 * 6.3 | 88.9 * 4 |
63.5 * 3.6 | 48.3 * 3.2 | 101.6 * 3.6 |
63.5 * 4 | 48.3 * 3.6 | 101.6 * 4.5 |
63.5 * 6.3 | 50.8 * 4.5 | 101.6 * 6.3 |
63.5 * 7.9 | 51 * 3.2 | 114.3 * 3.6 |
70 * 3.2 | 51 * 3.6 | 114.3 * 5 |
70 * 3.6 | 51 * 6.3 | 139.7 * 4 |
70 * 6.3 | 57 * 3.2 | 139.7 * 5 |
76.2 * 3.6 | 57 * 3.6 | 139.7 * 6.3 |
C | Mn | P | S | Si | Ni | Cr | Mo |
---|---|---|---|---|---|---|---|
0.38-0.43 | 0.60-0.80 | 0.035 | 0.040 | 0.15-0.35 | 1.65-2.00 | 0.70-0.90 | 0.20-0.30 |
O.D (mm) | I.D (mm) | Straightness (mm) |
---|---|---|
-/+0.5% | H9-H12 | 0.20-0.80 |
Tensile Properties | |||||||
Grade Designation | Condition | Ultimate Strength | Yield Strength | Rockwell,Hardness B Scale | Elongation in 2 in.or 50mm,% | ||
Mpa | ksi | Mpa | ksi | ||||
4340 | HR | 621 | 90 | 483 | 70 | 89 | 20 |
SR | 724 | 105 | 586 | 85 | 95 | 10 | |
A | 517 | 75 | 379 | 55 | 81 | 30 | |
N | 621 | 90 | 414 | 60 | 89 | 20 |
Size NPS | O.D. | Sch. Pipes # |
I.D. Pipes | Gallon Capacity Per Linear Foot | Wall Thk. | Standard to XXHY | Wght per Foot | Section Modulus |
---|---|---|---|---|---|---|---|---|
1/2 | 0.84 | 40 | 0.622 | .0158 | 0.109 | STD | 0.85 | .0407 |
80 | 0.546 | .0122 | 0.147 | XHY | 1.09 | .0478 | ||
160 | 0.464 | .0088 | 0.188 | 1.31 | .0528 | |||
0.252 | .0026 | 0.294 | XXHY | 1.72 | .0577 | |||
3/4 | 1.05 | 40 | 0.824 | .0277 | 0.113 | STD | 1.13 | .0705 |
80 | 0.742 | .0225 | 0.154 | XHY | 1.48 | .0853 | ||
160 | 0.612 | .0153 | 0.219 | 1.95 | .1006 | |||
0.434 | .0077 | 0.308 | XXHY | 2.44 | .1103 | |||
1 | 1.315 | 40 | 1.049 | .0449 | 0.133 | STD | 1.68 | .1328 |
80 | 0.957 | .0374 | 0.179 | XHY | 2.17 | .1606 | ||
160 | 0.815 | .0271 | 0.250 | 2.85 | .1904 | |||
0.599 | .0146 | 0.358 | XXHY | 3.66 | .2136 | |||
1 1/4 | 1.66 | 40 | 1.380 | .0777 | 0.140 | STD | 2.27 | .2346 |
80 | 1.278 | .0666 | 0.191 | XHY | 3.00 | .2913 | ||
160 | 1.160 | .0549 | 0.250 | 3.77 | .3421 | |||
0.896 | .0328 | 0.382 | 5.22 | .4110 | ||||
1 1/2 | 1.90 | 40 | 1.610 | .1058 | 0.145 | STD | 2.72 | .3262 |
80 | 1.500 | .0918 | 0.200 | XHY | 3.63 | .4118 | ||
160 | 1.338 | .0730 | 0.281 | 4.86 | .5079 | |||
1.100 | .0494 | 0.400 | 6.41 | .5977 | ||||
2 | 2.375 | 10 | 2.157 | .1898 | 0.109 | 2.64 | .4205 | |
40 | 2.067 | .1743 | 0.154 | STD | 3.66 | .5606 | ||
80 | 1.939 | .1534 | 0.218 | XHY | 5.03 | .7309 | ||
1.875 | .1434 | 0.250 | 5.68 | .8045 | ||||
1.813 | .1344 | 0.281 | 6.29 | .8666 | ||||
160 | 1.687 | .1161 | 0.344 | 7.47 | .9806 | |||
1.503 | .0922 | 0.436 | XXHY | 9.04 | 1.1043 | |||
2 1/2 | 2.875 | 10 | 2.635 | .2833 | 0.120 | 3.53 | .6870 | |
40 | 2.469 | .2487 | 0.203 | STD. | 5.80 | 1.0640 | ||
2.443 | .2435 | 0.216 | 6.14 | 1.1169 | ||||
2.375 | .2301 | 0.250 | 7.02 | 1.2468 | ||||
80 | 2.323 | .2202 | 0.276 | XHY | 7.67 | 1.3386 | ||
160 | 2.125 | .1842 | 0.375 | 10.02 | 1.6371 | |||
1.771 | .1280 | 0.552 | XXXHY | 13.71 | 1.9971 | |||
3 | 3.50 | 3.260 | .4336 | 0.120 | 4.34 | 1.0411 | ||
3.188 | .4147 | 0.156 | 5.58 | 1.3122 | ||||
3.156 | .4064 | 0.172 | 6.12 | 1.4265 | ||||
3.124 | .3984 | 0.188 | 6.66 | 1.5342 | ||||
40 | 3.068 | .3840 | 0.216 | STD. | 7.58 | 1.7241 | ||
3.000 | .3672 | 0.250 | 8.69 | 1.9372 | ||||
2.938 | .3521 | 0.281 | 9.67 | 2.1207 | ||||
80 | 2.900 | .3431 | 0.300 | XHY | 10.26 | 2.2253 | ||
160 | 2.624 | .2811 | 0.438 | 14.34 | 2.8774 | |||
2.300 | .2158 | 0.600 | XXHY | 18.6 | 3.4243 | |||
3 1/2 | 4.0 | 10 | 3.760 | .5768 | 0.120 | 4.98 | 1.3776 | |
140 | 3.548 | .5136 | 0.226 | STD. | 9.12 | 2.3939 | ||
3.500 | .4998 | 0.250 | 10.02 | 2.6001 | ||||
3.438 | .4821 | 0.281 | 11.17 | 2.8562 | ||||
80 | 3.364 | .4617 | 0.318 | XHY | 12.52 | 3.1400 | ||
2..728 | .3085 | 0.636 | XXHY | 22.87 | 4.8795 | |||
4 | 4.5 | 10 | 4.260 | .7404 | 0.120 | 5.62 | 1.7612 | |
4.188 | .7156 | 0.156 | 7.24 | 2.2354 | ||||
4.124 | .6942 | 0.188 | 8.67 | 2.6296 | ||||
4.094 | .6838 | 0.203 | 9.32 | 2.8173 | ||||
4.062 | .6725 | 0.219 | 10.02 | 3.0184 | ||||
40 | 4.026 | .6613 | 0.237 | STD. | 10.80 | 3.2145 | ||
4.000 | .6528 | 0.250 | 11.36 | 3.3611 | ||||
60 | 3.938 | .6326 | 0.281 | 12.67 | 3.7021 | |||
3.876 | .6126 | 0.312 | 13.97 | 4.0273 | ||||
80 | 3.826 | .5972 | 0.337 | XHY | 15.00 | 4.2713 | ||
120 | 3.624 | .5361 | 0.438 | 19.02 | 5.1790 | |||
160 | 3.438 | .4822 | 0.531 | 22.53 | 5.8997 | |||
3.152 | .4054 | 0.674 | XXHY | 27.57 | 6.7927 | |||
5 | 5.563 | 5.187 | 1.0979 | 0.188 | 10.80 | 4.1161 | ||
5.125 | 1.0716 | 0.219 | 12.51 | 4.7279 | ||||
40 | 5.047 | 1.0391 | 0.258 | STD. | 14.63 | 5.4500 | ||
5.001 | 1.0204 | 0.281 | 15.87 | 5.8644 | ||||
4.939 | .99647 | 0.312 | 17.51 | 6.4074 | ||||
4.875 | .9696 | 0.344 | 19.19 | 6.9358 | ||||
80 | 4.813 | .9449 | 0.375 | XHY | 20.80 | 7.4300 | ||
120 | 4.563 | .8495 | 0.500 | 27.06 | 9.2534 | |||
160 | 4.313 | .7590 | 0.625 | 32.99 | 10.7976 | |||
4.063 | .6734 | 0.750 | XXHY | 38.59 | 12.0954 | |||
6 | 6.625 | 5 | 6.407 | 1.6748 | 0.109 | 7.59 | 3.5769 | |
10 | 6.357 | 1.6488 | 0.134 | 9.30 | 4.3475 | |||
6.313 | 1.6260 | 0.156 | 10.79 | 5.0107 | ||||
6.249 | 1.5937 | 0.188 | 12.94 | 5.9351 | ||||
6.219 | 1.5780 | 0.203 | 13.94 | 6.3804 | ||||
6.187 | 1.5620 | 0.219 | 15.00 | 6.8261 | ||||
6.125 | 1.5306 | 0.250 | 17.04 | 7.6905 | ||||
40 | 6.065 | 1.5008 | 0.280 | STD. | 18.99 | 8.4958 | ||
6.001 | 1.4688 | 0.312 | 21.06 | 9.3416 | ||||
5.937 | 1.4391 | 0.344 | 23.10 | 10.111 | ||||
5.875 | 1.4082 | 0.375 | 25.05 | 10.893 | ||||
80 | 5.761 | 1.3541 | 0.432 | XHY | 28.60 | 12.224 | ||
5.625 | 1.2909 | 0.500 | 32.74 | 13.711 | ||||
120 | 5.501 | 1.2346 | 0.562 | 36.43 | 14.9806 | |||
5.375 | 1.1787 | 0.625 | 40.09 | 16.1821 | ||||
160 | 5.187 | 1.0977 | 0.719 | 45.39 | 17.8243 | |||
4.897 | .9784 | 0.864 | XXHY | 53.21 | 20.025 | |||
4.625 | .8727 | 1.000 | 60.13 | 21.7719 | ||||
4.375 | .7809 | 1.125 | 66.14 | 23.1237 |
Properties | Metric | Imperial |
---|---|---|
Thermal expansion co-efficient (20°C/68°F, specimen oil hardened, 600°C (1110°F) temper | 12.3 µm/m°C | 6.83 µin/in°F |
Thermal conductivity (typical steel) | 44.5 W/mK | 309 BTU in/hr.ft².°F |