With a strong global presence, Super Metal Manufacturing Co. has established itself as a leading exporter of Alloy Steel 4140 Round Bars to numerous countries worldwide. We offer customized packaging and labeling options to meet client requirements and ensure safe transportation of products to destinations around the world.
Material Specification Chart of AISI 4140 Round Bar
| Specifications | ASTM A182, ASME SA182 |
|---|---|
| Standards | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Range of Diameter | 5mm 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 Round Bars Grade
| Country names | Hong Kong | USA | German | British | Japan | China | Australia | |
|---|---|---|---|---|---|---|---|---|
| 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 |
Each AISI 4140 Round Bar we manufacture undergoes stringent quality testing under international inspection standards. The superior metallurgical properties of our Cr-Mo Steel Round Bars make them highly reliable for applications that require resistance to shock, torsion, and high stress. Our bars are precisely machined to achieve close dimensional tolerances and an excellent surface finish.
As a reputed manufacturer and exporter of 42CrMo4 Alloy Steel Round Bars, we focus on providing value-added services like cutting, threading, and polishing. Our technical team ensures each order is produced according to the customer’s material specification, ensuring complete satisfaction with every delivery.
Choose Super Metal Manufacturing Co. as your trusted partner for AISI 4140 Round Bars and related grades such as EN19A, EN19T, and 42CrMo Alloy Steel Bars. With our experience, quality assurance, and strong distribution network, we continue to serve industries worldwide with reliability and precision.
Alloy Steel AISI 4140 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 |
FAQs About AISI 4140 Round Bar
Q1: What is AISI 4140 Round Bar used for?
A1: AISI 4140 Round Bars are widely used in manufacturing gears, shafts, bolts, crankshafts, and other high-strength mechanical components that require toughness and fatigue resistance.
Q2: What are the available standards equivalent to AISI 4140?
A2: The equivalent grades include SAE 4140, EN19, DIN 42CrMo4, JIS SCM440, BS 708M40, and AFNOR 42CD4, all known for their similar chemical and mechanical properties.
Q3: What makes Super Metal Manufacturing Co. a leading exporter of AISI 4140 Round Bars?
A3: We provide superior quality 4140 Round Bars with international standard certifications, precise machining, and global export capabilities, ensuring customer satisfaction and reliability.
Q4: What sizes and finishes are available for AISI 4140 Round Bars?
A4: We offer AISI 4140 Round Bars in various diameters, lengths, and finishes such as black, bright, and forged. Custom cutting and polishing services are also available on request.
Q5: Are 4140 Round Bars suitable for heat treatment?
A5: Yes, 4140 Round Bars can be heat-treated to achieve higher hardness, tensile strength, and wear resistance. Common processes include quenching, tempering, and annealing.
Application of AISI Alloy Steel AISI 4140 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.