Super Metal Manufacturing Co. has earned a strong reputation in the global market, exporting 4140 / EN19 / 42CrMo4 forged round bars to Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, the USA, Canada, and numerous regions in Africa and across the globe. Their extensive network, advanced infrastructure, and adherence to strict quality standards have positioned them as a trusted supplier for international clients. The company maintains a ready stock of various sizes and lengths to meet urgent customer requirements efficiently.
Material Specification Chart of 4140 / EN19 / 42CrMo4 Forged Round Bars
Specifications | ASTM A182, ASME SA182 |
---|---|
Standards | EN, DIN, JIS, ASTM, BS, ASME, AISI |
Range of Diameter | 100mm to 500mm |
Finish | Bright, Black, Forged, Turned Bright |
Length | 1000 mm Long To 6000 mm Long |
Form | Round, Billet, Ingot, Forging Etc. |
SAE 4140 / EN19 / 42CrMo4 Forged Round Bars Grade
Country names | India | USA | German | British | Japan | China | Australia | |
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Country standards | UNS | AISI | ASTM A29 | DIN 17200 | BS 970 | JIS G4105 | GB/T 3077 | AS 1444 |
Grades | G41400 | 4140 | 4140 | 1.7225/ 42CrMo4 | EN 19 / 42CrMo4 | SCM440 | 42CrMo | 4140 |
These forged round bars are widely used in manufacturing components such as crankshafts, axles, shafts, gears, drill collars, and pressure vessels. Thanks to their high machinability and resistance to wear and impact, they are ideal for parts that are exposed to continuous load, high stress, and extreme temperatures. The forging process enhances the internal grain structure, which significantly improves the strength and performance characteristics of the material.

Super Metal Manufacturing Co. offers customization services to meet specific project requirements, including tailored sizes, heat treatment, and surface finishes. With an experienced technical team and state-of-the-art production capabilities, the company delivers products that meet and exceed international expectations in both quality and performance.
Through its consistent focus on innovation, quality, and customer satisfaction, Super Metal Manufacturing Co. continues to be a global leader in supplying 4140 / EN19 / 42CrMo4 forged round bars. With exports reaching customers across continents, the company remains committed to delivering dependable alloy steel solutions to some of the most demanding industries in the world.
4140 / EN19 / 42CrMo4 Forged Round Bars Dimensions Standard
Diameter or Width (mm) |
Weight per meter | Sectional Area | Perimeter |
Round (kg) |
Round (cm²) |
Round (cm) |
|
5.0 | 0.15 | 0.20 | 1.57 |
5.5 | 0.19 | 0.24 | 1.78 |
6.0 | 0.22 | 0.28 | 1.88 |
7.0 | 0.30 | 0.38 | 2.20 |
8.0 | 0.39 | 0.50 | 2.51 |
9.0 | 0.50 | 0.64 | 2.83 |
10 | 0.63 | 0.79 | 3.14 |
11 | 0.75 | 0.95 | 3.46 |
12 | 0.89 | 1.13 | 3.77 |
14 | 1.21 | 1.54 | 4.40 |
16 | 1.58 | 2.01 | 5.03 |
18 | 2.00 | 2.54 | 5.65 |
20 | 2.47 | 3.14 | 6.28 |
22 | 2.98 | 3.80 | 6.91 |
25 | 3.85 | 4.91 | 7.85 |
28 | 4.83 | 6.16 | 8.80 |
32 | 6.31 | 8.04 | 10.05 |
36 | 7.99 | 10.18 | 11.31 |
40 | 9.86 | 12.57 | 12.57 |
45 | 12.49 | 15.90 | 14.14 |
50 | 15.41 | 19.64 | 15.71 |
56 | 19.34 | 24.63 | 17.59 |
63 | 24.47 | 31.17 | 19.79 |
71 | 31.08 | 39.59 | 22.31 |
80 | 39.46 | 50.27 | 25.13 |
Application of AISI Alloy Steel 4140 / EN19 / 42crmo4 Round Bars
ASTM alloy 4140 steel bar, flat or plate material can be used for as wide variety of applications where greater toughness and wear resistance is needed over lower carbon grades. Typical applications for 4140 tool steel uses include Components, Adapters, Arbors,strippers, holder blocks, mold bases, ejectors, back up and support tooling, fixtures, jigs, molds, cams, drill collars, Axle Shafts, Bolts, Crankshafts,stubs, couplings, reamer bodies, axles, shafting, piston rods, rams, hydraulic machinery shafts, gears, sprockets, gear racks, chain links, spindles, tool bodies, tool holders, tie rods, Connection Rods, Chuck Bodies, Collets, Conveyor Pins & Rolls, Ejector Pins, Forks, Gears, Guide Rods, Hydraulic Shafts & Parts,Lathe Spindles, Logging Parts, Milling Spindles, Motor Shafts, Nuts, Pinch Bars, Pinions, Pump Shafts,boring bars,tracks, slides, wear strips or parts, forming dies, brake dies, trim dies, bolsters, machinery parts and components, etc.