4140 / EN19 / 42crmo4 Round Bars are a high-grade alloy steel, renowned for their excellent combination of strength, toughness, and hardenability. They are highly resistant to wear, fatigue, and impact, making them ideal for high-stress applications in industries like defense, automotive, aerospace,heavy machinery and construction. These round bars are commonly used in the production of crankshafts, axles, gears, and other components that require high-performance materials capable of withstanding extreme loads and harsh environments.
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
| 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 |
4140 / EN19 / 42crmo4 Round Bars are product offered by Super Metal Manufacturing Co., providing outstanding mechanical properties, particularly in applications involving high-impact loads and high-temperature environments. This alloy steel contains chromium and carbon, which enhances its hardenability and strength. As a result, 4140 / EN19 / 42crmo4 Round Bars are widely used in the manufacturing of machine components such as shafts, bolts, and hydraulic parts. These round bars offer excellent toughness, corrosion resistance, and wear resistance, making them a preferred choice in industries like defense, automotive, aerospace,heavy machinery and construction
At Super Metal Manufacturing Co., we are proud to export our 4140 / EN19 / 42crmo4 Round Bars to a wide range of countries, including Oman, Qatar, Kuwait, Spain, UAE, Saudi Arabia, Japan, Germany, the United States, the United Kingdom, South Korea, South Africa, and many more worldwide. Our customers trust us for our commitment to providing top-quality alloy steel products that meet international standards. We ensure timely delivery and reliable service, ensuring our clients’ projects and production schedules are never delayed.
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 (FAQs)
Q1: Do you export round bars to the Middle East?
A1: Yes, Super Metal Manufacturing Co. exports high-quality 4140 / EN19 / 42CrMo4 round bars to countries across the Middle East including UAE, Saudi Arabia, Oman, Qatar, and Bahrain.
Q2: What are the common grades you export?
A2: We specialize in exporting alloy steel round bars in grades such as 4140 (AISI), EN19 (BS), and 42CrMo4 (DIN/EN), known for their strength, toughness, and durability.
Q3: Do your round bars meet international standards?
A3: Absolutely. Our round bars conform to ASTM, EN, DIN, and BS standards and are supplied with EN 10204 3.1 Mill Test Certificates for full quality assurance and traceability.
Q4: What industries in the Middle East use your round bars?
A4: Our round bars are widely used in oil & gas, petrochemical plants, marine engineering, power generation, construction, and heavy equipment manufacturing industries.
Frequently Asked Questions – 4140 / EN19 / 42CrMo4 Round Bars
1. What are the chemical compositions of these steel grades?
AISI/SAE 4140 typically contains Carbon (0.38–0.43%), Chromium (0.80–1.10%), and Molybdenum (0.15–0.25%),
along with Silicon, Manganese, Sulfur, and Phosphorus in standard limits. EN19 and 42CrMo4 have similar
compositions with slight variations.
2. What heat treatment processes are commonly applied?
These round bars can undergo various treatments such as annealing, quenching and tempering (Q&T).
Q&T is common, involving heating to ~860–890 °C, followed by oil quenching and tempering to improve
mechanical properties.
3. What are the common applications of 4140 / EN19 / 42CrMo4 round bars?
These bars are used for high-stress components like gears, crankshafts, spindles, shafts, tie rods,
and plastic molds across the automotive, oil & gas, and heavy machinery sectors.
4. What sizes and forms are available?
Round bars are available from 5 mm to over 1000 mm diameter in hot-rolled, forged, quenched & tempered,
and cold-drawn forms. Custom sizes can be manufactured based on client specifications.
5. How are the bars packaged and delivered?
Bars are securely packed in bundles (2–4 tons each), tagged with heat numbers, and shipped in
20′ or 40′ containers or via bulk vessels. Lead times range from 7–10 days for stock and up to
30 days for new production.
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:
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| 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 (FAQs)
Q1: Do you export round bars to the Middle East?
A1: Yes, Super Metal Manufacturing Co. exports high-quality 4140 / EN19 / 42CrMo4 round bars to countries across the Middle East including UAE, Saudi Arabia, Oman, Qatar, and Bahrain.
Q2: What are the common grades you export?
A2: We specialize in exporting alloy steel round bars in grades such as 4140 (AISI), EN19 (BS), and 42CrMo4 (DIN/EN), known for their strength, toughness, and durability.
Q3: Do your round bars meet international standards?
A3: Absolutely. Our round bars conform to ASTM, EN, DIN, and BS standards and are supplied with EN 10204 3.1 Mill Test Certificates for full quality assurance and traceability.
Q4: What industries in the Middle East use your round bars?
A4: Our round bars are widely used in oil & gas, petrochemical plants, marine engineering, power generation, construction, and heavy equipment manufacturing industries.
Frequently Asked Questions – 4140 / EN19 / 42CrMo4 Round Bars
1. What are the chemical compositions of these steel grades?
AISI/SAE 4140 typically contains Carbon (0.38–0.43%), Chromium (0.80–1.10%), and Molybdenum (0.15–0.25%), along with Silicon, Manganese, Sulfur, and Phosphorus in standard limits. EN19 and 42CrMo4 have similar compositions with slight variations.
2. What heat treatment processes are commonly applied?
These round bars can undergo various treatments such as annealing, quenching and tempering (Q&T). Q&T is common, involving heating to ~860–890 °C, followed by oil quenching and tempering to improve mechanical properties.
3. What are the common applications of 4140 / EN19 / 42CrMo4 round bars?
These bars are used for high-stress components like gears, crankshafts, spindles, shafts, tie rods, and plastic molds across the automotive, oil & gas, and heavy machinery sectors.
4. What sizes and forms are available?
Round bars are available from 5 mm to over 1000 mm diameter in hot-rolled, forged, quenched & tempered, and cold-drawn forms. Custom sizes can be manufactured based on client specifications.
5. How are the bars packaged and delivered?
Bars are securely packed in bundles (2–4 tons each), tagged with heat numbers, and shipped in 20′ or 40′ containers or via bulk vessels. Lead times range from 7–10 days for stock and up to 30 days for new production.
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.