One of the defining characteristics of 4140 alloy steel is its excellent response to heat treatment. Super Metal Manufacturing Co. typically supplies these bars in a heat-treated condition—either quenched and tempered or normalized and tempered—to achieve the desired mechanical properties such as high tensile strength and impact resistance.
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 |
Applications of Alloy Steel 4140 Bright Bars include the manufacturing of gears, axles, drive shafts, studs, bolts, and crankshafts. Their ability to withstand shock loading and wear makes them a preferred choice for critical components in both static and dynamic environments. These bars are available in round, hexagonal, and square shapes to suit different application needs.
Super Metal Manufacturing Co. ensures strict adherence to international standards such as ASTM A322, SAE 4140, and EN19. Their quality assurance protocols include testing for hardness, tensile strength, chemical composition, and surface defects using non-destructive methods. This ensures every bar meets the required specifications and performs reliably in the field.
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
FAQs About Alloy Steel 4140 Bright Bars
Q1: What are the main applications of Alloy Steel 4140 Bright Bars?
A1: Alloy Steel 4140 Bright Bars are used in automotive components, gears, shafts, bolts, crankshafts, and other mechanical parts requiring high strength and precision.
Q2: Are the 4140 bright bars heat treated?
A2: Yes, 4140 bright bars are often supplied in quenched and tempered or normalized and tempered conditions to improve mechanical properties like tensile strength and hardness.
Q3: Can I order custom sizes and surface finishes for 4140 bright bars?
A3: Absolutely. Super Metal Manufacturing Co. offers custom diameters, lengths, tolerances (such as h9 or h10), and surface finishes like polished or centerless ground as per client needs.
Q4: What standards do the Alloy Steel 4140 Bright Bars comply with?
A4: These bars are manufactured to meet international standards such as ASTM A322, SAE 4140, and EN19, ensuring top-quality material for industrial use.
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 |
FAQs About Alloy Steel 4140 Bright Bars
Q1: What are the main applications of Alloy Steel 4140 Bright Bars?
A1: Alloy Steel 4140 Bright Bars are used in automotive components, gears, shafts, bolts, crankshafts, and other mechanical parts requiring high strength and precision.
Q2: Are the 4140 bright bars heat treated?
A2: Yes, 4140 bright bars are often supplied in quenched and tempered or normalized and tempered conditions to improve mechanical properties like tensile strength and hardness.
Q3: Can I order custom sizes and surface finishes for 4140 bright bars?
A3: Absolutely. Super Metal Manufacturing Co. offers custom diameters, lengths, tolerances (such as h9 or h10), and surface finishes like polished or centerless ground as per client needs.
Q4: What standards do the Alloy Steel 4140 Bright Bars comply with?
A4: These bars are manufactured to meet international standards such as ASTM A322, SAE 4140, and EN19, ensuring top-quality material for industrial use.
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.