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4140 Round Bar
Products We Offer
4140 Round Bar
Alloy steel is used for the production of a wide variety of tubes, bars, pipes, and rods. One such bar is the 4140 Round Bar that is used as connectors between pipes in the middle. They can also be used as plugins in pressure valves to resist pressure. They are demanded in large scale industries and are well known for being leakproof. 4140 alloy steel round bar is a chromium molybdenum alloy steel specification is broadly utilized in the oil and gas industry. Reliant Pipe & Tubes Pvt. Ltd. is Suppliers of High-Strength 4140 Alloy steel rod which offers greeted strength and heat treatment capability as compared to other bars or rods. This is due to the higher content of carbon in it.
Buy AISI 4140 threaded rod at best price, We Stock Chromoly 4140 Black Bar in all sizes
However, these 42crmo4 hollow bars display an inferior weldability characteristic. They are usually supplied in tempered and hardened states within a tensile range of 850- 1000 Mpa. 4140 alloy steel flat bar produced by us have increased machinability, which increases the feed and speed. This also improves the life of the tool without affecting its mechanical properties. In case any 4140 alloy steel round bar is prehardened then they can be surface hardened using flame or induction hardening by using nitride. These tight-tolerance hardened 4140 alloy steel bars are widely used in a wide range of applications in different industries.
For Instance SAE 4140 Alloy steel flat bar is used in axle shafts, crankshafts, connection rods, guide rods, forks, gears, collets, chuck bodies, and milling spindles. Moreover, these 4140 Alloy steel square bars are also used in hydraulic shafts, lathe spindles, pinions, pump shafts, rams, torsion bars, sockets, holders, convey pins, and rolls, and ejector pins. The AISI 4140 Alloy steel hex bar is welded using all conventional methods. They display good ductility. However, they require more pressure for forming as compared to other carbon steel due to their toughness. Alloy steel AISI 4140 Bright bar might need a post weld treatment as welding in heat treated conditions might deteriorate its mechanical properties.
4140 Round Bar
Custom length of Alloy Steel 42crmo4 Square, AISI 1.7225 hollow Bar Supplier in India
Specification List of 4140 Round Bar
| Sizes | 2-100mm A/F |
|---|---|
| Tolerance | H9, H8, H10, K12, H13K9, K10, H11, H12, K11 |
| Supplier of Round bar in Sizes | Diameter: 3-~800mm |
| Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged, Rod |
| Processing | Bar cutting to 650mm |
| Surface | Bright, Hot Rolled Pickled, Sand Blasting Finished, Hairline, Cold Drawn, Polished |
| Condition | Hardened and tempered, annealed |
| Form | Supplier in Precision Square, Ingot, T-Bar, Rod, Round, Welding Rod, I/H Bar, Flat Bar, Blocks, Rings, Rectangle, Hex (A/F), Hollow, Threaded, Profiles, Ground Bar, Channel Bar, Billet, Triangle, Round Rod, Half Round Bar, Forging etc. |
| Square bar Sizes | 4 to 100mm |
| Finish | Grinding, centreless ground, Cold (bright) drawn, smooth turned, peeled, slit rolled edge, hot rolled, hot rolled annealed, Bright, Polish, Rough Turned, Centreless Ground & Black |
| Flat bar Sizes | Thickness: 2 -100mm Width: 10 to 500mm |
Chemical Structure of AISI 4140 threaded rod
| C | Mn | Si | S | P | Cr | Ni | Mo | |
| SAE - 4140 | .38 - .43 | .75 - 1.00 | .20 - .35 | .035 | .035 | .80 - 1.10 | .15 - .25 | - |
Check SAE 4140 Rectangular Bar mechanical Strength, Manufacturer of UNS G41400 Alloy steel Polished bar in India
Mechanical Analysis of Hardened 4140 Alloy steel hex bars
| Yield (psi) |
UTS (psi) |
% Elongation |
% Reduction of Area |
Hardness HRC |
Charpy room temperature (average of 3) |
| min 80k | min 100k | min 20% | min 40% | 18-22 | 50J |
| max 110k |
Material Equivalent of SAE 4140 Alloy steel flat bar
| Standard | AISI / SAE 4140 |
| EN # | 1.7225, 1.7223, 1.7227, 1.3563 |
| UNS | - |
| UNI | G40 CrMo4, 41CrMo4, 42CrMo4, 38CrMo4 (KB) |
| JIS | SCM 440H, SCM 440, SNB 7, SCM 4, SCM 4M |
| WERKSTOFF NR. | 42CrMo4, 41CrMo4, 43CrMo4, 42CrMoS4 |
| BS 970 | 708A42, 708M40, 709M40, En19C, En19 |
| EN name | 42CrMo4 |
Size Chart of 4140 alloy steel round bar
| Types | SIZES (Millimeter) | SIZES (In) | Tolerance (ISO) |
|---|---|---|---|
| Cold Drawn and Ground | 10.00 – 75.00 | 5/6" – 2.50" | h8-h9-h10-h11 |
| Peeled and Ground | 20.00 – 50.00 | 3/4″ – 2.00" | h9-h10-h11 |
| Peeled and Polished | 40.00 – 150.00 | 1.50" – 6.00" | h11, h11-DIN 1013 |
| Cold Drawn and Polish | 3.00 – 75.00 | 1/8" – 3.00" | h8-h9-h10-h11 |
SAE 4140 Round Bar Condition
| ANN | Annealed |
| H&T | Hardened and tempered. |
| PH | Precipitation hardened. |
Alloy Steel 4140 Hex Bar Physical Properties
| Melting Point (°C) | 1425 |
| Density (G/CM 3) | 8.08 |
| Melting Point (°F) | 2600 |
| Density (LB/IN 3) | 0.292 |
4140 Hot Rolled Round Bar Forging
926°C to 1205°C.
4140 Steel Round Bar Price in Mumbai
| Product | Price |
|---|---|
| Hot Rolled Alloy Steel Round Bars Grade: Sae4140 Size: Dia 40-250 Mm | $0.37/ Kilogram |
| Steel Round Rod AISI 4140 Q & T Solid Round Bar 160mmdia X 1mtr Lgth | $600.46/ Meter |
| Steel AISI 4140 Hollow Round Bar 250mm O.d. X 1 | $633.63/ Piece |
| Steel Bars In Grade SAE 4140h Peeled & Tq H10 Mm 5250/5400 Round Size 35.35 Mm | $1.35/ Kilogram |
Many SAE 4140 Round Bar suppliers, stockists, importers, retailers, wholesalers, exporters, dealers, stockholders, and distributors choose us for the best price of Alloy Steel 4140 Solid Bar in India, Find your sizes in our stock of 4140 Hexagonal Bar in Mumbai, Contact for a Quick Quote!
4140 Cold Drawn Round Bar Features
- Seamless finish
- Rust proof finish
- Strongly designed
- Flat bottom surface
- High precision
Surface Finish of AISI 4140 Flat Bar
| CF | Cold finished | CD | Cold drawn |
| ST | Smooth turned | CG | Centreless ground |
| P&T | Peeled and turned | P | Polished |
| SRE | Slit rolled edge | BD | Bright drawn |
| RT | Rough turned/peeled | PR | Peeled and reeled |
| HRAP | Hot rolled annealed and pickled | HF | Hot finished |
4140 Alloy Steel Square Bar Thickness Chart
| SIZE IN INCHES | ROUND | SQUARE | OCTAGON | HEXAGON | SIZE IN INCHES | ROUND | SQUARE | OCTAGON | HEXAGON |
| 1/16 | .010 | .013 | .011 | .012 | 11/16 | 1.262 | 1.607 | 1.333 | 1.392 |
| 5/64 | .017 | .022 | .018 | .019 | 45/64 | 1.320 | 1.681 | 1.394 | 1.456 |
| 3/32 | .023 | .029 | .024 | .025 | 23/32 | 1.380 | 1.756 | 1.487 | 1.521 |
| 7/64 | .031 | .039 | .033 | .034 | 47/64 | 1.440 | 1.834 | 1.521 | 1.588 |
| 1/8 | .042 | .053 | .044 | .046 | 3/4 | 1.502 | 1.913 | 1.586 | 1.656 |
| 9/64 | .053 | .067 | .056 | .058 | 25/32 | 1.630 | 2.075 | 1.721 | 1.797 |
| 5/32 | .065 | .083 | .069 | .072 | 13/16 | 1.763 | 2.245 | 1.862 | 1.944 |
| 11/64 | .079 | .100 | .083 | .087 | 27/32 | 1.901 | 2.421 | 2.008 | 2.096 |
| 3/16 | .094 | .120 | .099 | .104 | 7/8 | 2.045 | 2.603 | 2.159 | 2.254 |
| 13/64 | .110 | .140 | .116 | .121 | 29/32 | 2.193 | 2.792 | 2.316 | 2.418 |
| 7/32 | .128 | .163 | .135 | .141 | 15/16 | 2.347 | 2.988 | 2.479 | 2.588 |
| 15/64 | .147 | .187 | .155 | .162 | 31/32 | 2.506 | 3.191 | 2.646 | 2.763 |
| 1/4 | .167 | .213 | .176 | .184 | 1 | 2.670 | 3.400 | 2.820 | 2.945 |
|---|---|---|---|---|---|---|---|---|---|
| 17/64 | .188 | .240 | .199 | .207 | 1-1/16 | 3.015 | 3.838 | 3.183 | 3.324 |
| 9/32 | .211 | .269 | .223 | .233 | 1-1/8 | 3.380 | 4.303 | 3.569 | 3.727 |
| 19/64 | .235 | .300 | .248 | .259 | 1-3/16 | 3.766 | 4.795 | 3.977 | 4.152 |
| 5/16 | .261 | .332 | .275 | .288 | 1-1/4 | 4.172 | 5.313 | 4.407 | 4.601 |
| 21/64 | .288 | .360 | .304 | .318 | 1-5/16 | 4.600 | 5.857 | 4.858 | 5.072 |
| 11/32 | .316 | .402 | .334 | .348 | 1-3/8 | 5.049 | 6.428 | 5.332 | 5.567 |
| 23/64 | .345 | .439 | .364 | .381 | 1-7/16 | 5.518 | 7.026 | 5.827 | 6.085 |
| 3/8 | .376 | .478 | .397 | .414 | 1-1/2 | 6.008 | 7.650 | 6.345 | 6.625 |
| 25/64 | .408 | .519 | .431 | .450 | 1-9/16 | 6.519 | 8.301 | 6.885 | 7.189 |
| 13/32 | .441 | .561 | .466 | .486 | 1-5/8 | 7.051 | 8.978 | 7.446 | 7.775 |
| 27/64 | .475 | .605 | .502 | .524 | 1-11/16 | 7.604 | 9.682 | 8.030 | 8.385 |
| 7/16 | .511 | .651 | .540 | .564 | 1-3/4 | 8.178 | 10.41 | 8.634 | 9.018 |
| 29/64 | .548 | .698 | .579 | .604 | 1-13/16 | 8.773 | 11.17 | 9.265 | 9.673 |
| 15/32 | .587 | .747 | .620 | .647 | 1-7/8 | 9.388 | 11.95 | 9.911 | 10.35 |
| 31/64 | .627 | .798 | .662 | .692 | 1-15/16 | 10.02 | 12.76 | 10.58 | 11.05 |
| 1/2 | .668 | .850 | .705 | .736 | 2 | 10.68 | 13.60 | 11.28 | 11.78 |
| 33/64 | .710 | .904 | .750 | .783 | 2-1/16 | 11.36 | 14.46 | 11.99 | 12.53 |
| 17/32 | .754 | .960 | .796 | .831 | 2-1/8 | 12.06 | 15.35 | 12.73 | 13.30 |
| 35/64 | .799 | 1.017 | .844 | .881 | 2-3/16 | 12.78 | 16.27 | 13.49 | 14.09 |
| 9/16 | .845 | 1.076 | .892 | .932 | 2-1/4 | 13.52 | 17.21 | 14.27 | 14.91 |
| 37/64 | .893 | 1.136 | .943 | .985 | 2-5/16 | 14.28 | 18.18 | 15.08 | 15.75 |
| 19/32 | .941 | 1.199 | .994 | 1.038 | 2-3/8 | 15.06 | 19.18 | 15.91 | 16.61 |
| 39/64 | .992 | 1.263 | 1.048 | 1.094 | 2-7/16 | 15.87 | 20.20 | 16.75 | 17.49 |
| 5/8 | 1.043 | 1.328 | 1.102 | 1.150 | 2-1/2 | 16.69 | 21.25 | 17.62 | 18.40 |
| 41/64 | 1.096 | 1.395 | 1.207 | 1.209 | 2-9/16 | 17.53 | 22.33 | 18.52 | 19.34 |
| 21/32 | 1.150 | 1.464 | 1.214 | 1.268 | 2-5/8 | 18.40 | 23.43 | 19.43 | 20.29 |
| 43/64 | 1.205 | 1.535 | 1.272 | 1.329 | 2-11/16 | 19.29 | 24.56 | 20.37 | 21.27 |
Size of AISI 4140 Rounds Bright Drawn
| Size (inch.) | 5/16 | 3/8 | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | 7/8 | 15/16 | 1 | 1 1/8 | 1 1/4 | 1 3/8 | 1 1/2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 5/8 | 1 3/4 | 2 | 2 1/4 | 2 1/2 | 2 3/4 | 3 | 3 1/2 | 4 | ||||||
| Size (millimeter) | 10 | 12 | 15 | 16 | 18 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 60 |
AISI 4140 Rounds Hot Rolled Sizes
| Size (millimeter) | 40 | 50 | 60 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 115 | 120 | 125 | 130 | 140 | 150 | 160 | 170 | 180 | 190 | 200 | 220 | |
| 240 | 260 | 280 | 300 | 320 | 350 | 400 |
4140 HT Round Bar Weight Chart
| Size (inch.) | 4140 Heat Treated Round Bar Wght / Foot in lbs |
|---|---|
| 1/4" | 00.167 |
| 5/16" | 00.261 |
| 3/8" | 00.376 |
| 7/16" | 00.511 |
| 1/2" | 00.668 |
| 9/16" | 00.845 |
| 5/8" | 1.043 |
| 11/16" | 1.262 |
| 3/4" | 1.502 |
| 13/16" | 1.763 |
| 7/8" | 2.045 |
| 15/16" | 2.347 |
| 1" | 2.670 |
| 1 1/16" | 3.015 |
| 1 1/8" | 3.380 |
| 1 3/16" | 3.766 |
| 1 1/4" | 4.172 |
| 1 5/16" | 4.600 |
| 1 3/8" | 5.049 |
| 1 7/16" | 5.518 |
| 1 1/2" | 6.008 |
| 1 9/16" | 6.519 |
| 1 5/8" | 7.051 |
| 1 3/4" | 8.178 |
| 1 7/8" | 9.388 |
| 1 15/16" | 10.020 |
| 2" | 10.680 |
| 2 1/8" | 12.060 |
| 2 1/4" | 13.520 |
| 2 3/8" | 15.060 |
| 2 7/16" | 15.870 |
| 2 1/2" | 16.690 |
| 2 5/8" | 18.400 |
| 2 3/4" | 21.130 |
| 2 7/8" | 22.070 |
| 3" | 25.050 |
| 3 1/4" | 29.300 |
| 3 1/2" | 33.890 |
| 3 3/4" | 38.810 |
| 4" | 44.070 |
| 4 1/4" | 48.230 |
| 4 3/8" | 51.110 |
| 4 1/2" | 55.590 |
Uses of 4140 Rectangle Bar
- Motorsports - chassis
- Pharmaceuticals
- Aerospace
- Condensers
- Petrochemicals
- Sea Water Equipment
Standard Weights of 4140 Square Bar
| Width or Dia.(millimetre) | Wght / m | Sectional Area | Perimeter | |||
| Round (kilogram) |
Square (kilogram) |
Round (centimetre²) |
Square (centimetre²) |
Round (centimeter) |
Square (centimeter) |
|
| 5.0 | 0.15 | 0.20 | 0.20 | 0.25 | 1.57 | 2.0 |
| 5.5 | 0.19 | 0.24 | 0.24 | 0.30 | 1.78 | 2.2 |
| 6.0 | 0.22 | 0.28 | 0.28 | 0.36 | 1.88 | 2.4 |
| 7.0 | 0.30 | 0.38 | 0.38 | 0.49 | 2.20 | 2.8 |
| 8.0 | 0.39 | 0.50 | 0.50 | 0.64 | 2.51 | 3.2 |
| 9.0 | 0.50 | 0.64 | 0.64 | 0.81 | 2.83 | 3.6 |
| 10 | 0.63 | 0.73 | 0.79 | 1.00 | 3.14 | 4.0 |
| 11 | 0.75 | 0.95 | 0.95 | 1.21 | 3.46 | 4.4 |
| 12 | 0.89 | 1.13 | 1.13 | 1.44 | 3.77 | 4.8 |
| 14 | 1.21 | 1.54 | 1.54 | 1.96 | 4.40 | 5.6 |
| 16 | 1.58 | 2.01 | 2.01 | 2.56 | 5.03 | 6.4 |
| 18 | 2.00 | 2.54 | 2.54 | 3.24 | 5.65 | 7.2 |
| 20 | 2.47 | 3.14 | 3.14 | 4.00 | 6.28 | 8.0 |
| 22 | 2.98 | 3.80 | 3.80 | 4.84 | 6.91 | 8.8 |
| 25 | 3.85 | 4.91 | 4.91 | 6.25 | 7.85 | 10.0 |
| 28 | 4.83 | 6.15 | 6.16 | 7.84 | 8.80 | 11.2 |
| 32 | 6.31 | 8.04 | 8.04 | 10.24 | 10.05 | 12.8 |
| 36 | 7.99 | 10.17 | 10.18 | 12.96 | 11.31 | 14.4 |
| 40 | 9.86 | 12.56 | 12.57 | 16.00 | 12.57 | 16.0 |
| 45 | 12.49 | 15.90 | 15.90 | 20.25 | 14.14 | 18.0 |
| 50 | 15.41 | 19.62 | 19.64 | 25.00 | 15.71 | 20.0 |
| 56 | 19.34 | 24.62 | 24.63 | 31.36 | 17.59 | 22.4 |
| 63 | 24.47 | 31.16 | 31.17 | 36.69 | 19.79 | 25.2 |
| 71 | 31.08 | 39.57 | 39.59 | 50.41 | 22.31 | 28.4 |
| 80 | 39.46 | 50.24 | 50.27 | 64.00 | 25.13 | 32.0 |
