Being a reliable Stockist of Chromoly Steel Round Bars, we maintain a wide inventory to cater to urgent industrial requirements. Our extensive stock enables us to meet both small and large order quantities with fast delivery times. Each bar is supplied with complete traceability, mill test certificates (MTC), and third-party inspection reports to ensure total customer satisfaction and product reliability.
As an experienced Exporter of Chromoly Steel Round Bars, we supply our products to numerous countries including the USA, UK, Germany, UAE, Saudi Arabia, and Japan. Our international clients trust us for our commitment to quality, timely delivery, and competitive pricing. With years of expertise, Super Metal Manufacturing Co. has earned a strong reputation for excellence in the global steel market.
Material Specification Chart of Chromoly Steel 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 |
The Chromoly Steel Round Bar offers excellent wear resistance, impact strength, and heat treatment capability. Its chromium-molybdenum composition enhances hardness and toughness, making it suitable for use in the automotive, oil & gas, aerospace, construction, and heavy machinery industries. The material maintains its mechanical integrity even under high temperature and pressure conditions, ensuring a long service life.
The Chromoly Steel Round Bar offers an excellent combination of strength, ductility, and impact resistance. It performs exceptionally well in heat-treated or quenched and tempered conditions, ensuring superior mechanical properties. Its versatility and toughness make it suitable for both static and dynamic load-bearing applications in critical industrial environments.
At Super Metal Manufacturing Co., we strive to deliver world-class Chromoly Steel Round Bars that meet and exceed customer expectations. With our advanced manufacturing facilities, technical expertise, and customer-centric approach, we continue to be one of the most trusted suppliers of alloy steel bars worldwide.
Alloy Steel Chromoly Steel 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 Chromoly Steel Round Bar
Q1: What is Chromoly Steel Round Bar?
A1: Chromoly Steel Round Bar is a chromium-molybdenum alloy steel bar known for its high tensile strength, toughness, and wear resistance. It is equivalent to AISI 4140, EN19, and DIN 42CrMo4 grades.
Q2: What are the common applications of Chromoly Steel Round Bars?
A2: Chromoly Steel Round Bars are used in the manufacturing of gears, shafts, axles, crankshafts, connecting rods, and other components requiring superior fatigue and impact resistance.
Q3: What are the equivalent grades of Chromoly Steel Round Bar?
A3: Equivalent grades include AISI 4140, SAE 4140, EN19, DIN 42CrMo4, 1.7225, JIS SCM440, and BS 708M40, all offering comparable chemical and mechanical properties.
Q4: Does Super Metal Manufacturing Co. export Chromoly Steel Round Bars internationally?
A4: Yes, Super Metal Manufacturing Co. exports Chromoly Steel Round Bars to several countries worldwide, providing high-quality materials, certifications, and timely delivery.
Q5: Can Chromoly Steel Round Bars be heat-treated?
A5: Yes, Chromoly Steel Round Bars can be heat-treated through quenching and tempering processes to achieve higher hardness, strength, and wear resistance as per application requirements.
Application of AISI Alloy Steel Chromoly Steel 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.