Round Bar

Super Metal Manufacturing Co. is a leading manufacturer and global supplier of premium-grade 4140 / EN19 / 42CrMo4 round bars, offering exceptional quality and precision-engineered products for demanding industrial applications. With decades of metallurgical expertise, Super Metal ensures that its alloy steel round bars meet international standards such as ASTM, DIN, BS, and EN, making them suitable for global markets.

These 4140 / EN19 / 42CrMo4 round bars are medium-carbon chromium-molybdenum alloy steels known for their high tensile strength, fatigue resistance, and good impact toughness. Due to their excellent mechanical properties, they are widely used in automotive components, machinery parts, shafts, spindles, gears, and structural applications. Super Metal supplies these bars in various conditions such as normalized, quenched & tempered, and annealed.


At Super Metal, quality control is integrated into every stage of production—from raw material selection and forging to machining and final inspection. The company operates advanced manufacturing and testing facilities, ensuring consistent product quality and dimensional accuracy. Bars are available in a variety of surface finishes such as black, bright, and rough turned, and sizes ranging from 16mm to 350mm in diameter.

Material Specification Chart of 4140 / EN19 / 42crmo4 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 India 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

With a strong global supply chain and export network, Super Metal Manufacturing Co. serves clients across the Middle East, Europe, Africa, and Southeast Asia. Whether for OEMs, EPC contractors, or fabrication companies, the company is known for timely delivery, competitive pricing, and technical support. Customized orders are also handled efficiently, including cut-to-length sizes and non-standard specifications.



As a reliable source for 4140 / EN19 / 42CrMo4 round bars, Super Metal continues to strengthen its position as a trusted partner in the alloy steel industry, offering products that ensure durability, performance, and long-term value in critical engineering applications.


Alloy Steel 4140 / EN19 / 42crmo4 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

Frequently Asked Questions - 4140 / EN19 / 42CrMo4 Round Bars

Q1: What are 4140 / EN19 / 42CrMo4 round bars commonly used for?

A1: These round bars are widely used in applications that require high strength and toughness, such as automotive axles, gear shafts, crankshafts, oilfield tools, and machine components.

Q2: What certifications and standards do your round bars meet?

A2: Our round bars conform to global standards such as ASTM A29, EN 10083-3, BS 970, and DIN. We also provide Mill Test Certificates (MTC) and third-party inspection reports on request.

Q3: Can I get round bars in custom sizes or heat-treated conditions?

A3: Yes, Super Metal Manufacturing Co. offers custom lengths, diameters, and heat treatments including annealed, normalized, and quenched & tempered conditions based on client specifications.

Q4: Do you export round bars internationally?

A4: Absolutely. We export 4140 / EN19 / 42CrMo4 round bars to the Middle East, Europe, Southeast Asia, and Africa, ensuring timely delivery and export packaging standards.

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.

Countries we have exported our products to:

Turkey, Thailand, Bulgaria, Serbia, Mexico, Estonia, Trinidad & Tobago,Tunisia, New Zealand, Indonesia, Puerto Rico, Ireland, India, Morocco, Brazil, Lebanon, Hong Kong, Jordan, Ukraine, Switzerland, Czech Republic, Lithuania, Sri Lanka, Greece, Taiwan, Zimbabwe, Algeria, Romania, Mexico, Ghana, Italy, Philippines, Spain, United Kingdom, Finland, Azerbaijan, Japan, Macau, Israel, Saudi Arabia, Kenya, Bhutan, Poland, Poland, Costa Rica, Kuwait, Singapore, Pakistan, France, Colombia, Tibet, Bolivia, Portugal, Iraq, Australia, Kazakhstan, Nepal, Mongolia, Gambia, Malaysia, Chile, Germany, Slovakia, China, Bahrain, Denmark, Angola, Afghanistan, Peru, Austria, Ecuador, Gabon, Croatia, South Africa, Sweden, Chile, Hungary, United Arab Emirates, Argentina, Bangladesh, Oman, Egypt, United States, Belgium, Canada, Namibia, Norway, Qatar, Belarus, Netherlands.

Cities we have supplied our products to:

Bengaluru, Vung Tau, Nashik, Jaipur, Navi Mumbai, La Victoria, Al Jubail, Noida, Granada, Doha, Dammam, Ernakulam, Chandigarh, Santiago, Melbourne, Surat, Nagpur, Ranchi, Kanpur, Jakarta, Ahvaz, Indore, Jamshedpur, Muscat, Rajkot, Lahore, Chiyoda, Milan, Hong Kong, Riyadh, Houston, Busan, Calgary, Madrid, Visakhapatnam, Atyrau, Bhopal, Algiers, Colombo, Kolkata, Petaling Jaya, Dallas, London, Cairo, Thiruvananthapuram, Caracas, Howrah, Moscow, Port-of-Spain, Baroda, Mexico City, Gurgaon, Singapore, Aberdeen, Coimbatore, Kuala Lumpur, Perth, Ahmedabad, New York, New Delhi, Manama, Abu Dhabi, Montreal, Jeddah, Pune, Vadodara, Kuwait City, Chennai, Geoje-si, Tehran, Mumbai, Hanoi, Karachi, Pimpri-Chinchwad, Thane, Haryana, Ulsan, Seoul, Dubai, Ho Chi Minh City, Toronto, Hyderabad, Los Angeles, Faridabad, Lagos, Sydney, Courbevoie, Bangkok, Bogota, Rio de Janeiro, Ankara, Al Khobar, Ludhiana, Istanbul, Gimhae-si, Brisbane, Edmonton, Sharjah, Secunderabad.

Cities we have supplied our products to: