AISI 4140 Round Bars are made from a chromium-molybdenum alloy and feature excellent strength, wear resistance, and toughness. These round bars have excellent formability and machinability, along with good weldability, making them ideal for use in industrial applications in temperatures up to 800°F. Moreover, they can be hardened and tempered to achieve greater strength and durability. AISI 4140 Round Bars is an alloy steel containing chromium-molybdenum (Cr-Mo) as its main alloying element. It also contains traces of manganese, sulfur, phosphorus, silicon, nickel, and carbon. This type of steel has good strength and hardenability characteristics that make it ideal for use in industrial applications such as shafts and machinery components.


4140 Steel Round Bar, EN19 CrMo Alloy Steel Bright Round Rod Manufactures, CrMo EN-19 Round Rods, AISI 4140 Steel Round Bars, Chrome Moly AISI 4140 Bars Stockist, Alloy Steel 42CrMoA Hot –Finished Round Bars Exporters, 6mm 42crmo4 Bar, Cr-Mo 708M40 Forged Bars, AISI 4140 Bright Bars, EN-19 CrMo Alloy Steel Cold Drawn Round Bars, Chrome Moly Werkstoff 1.7225 Black Round Bar, SAE 4140 Alloy Steel Peeled / Turned Round Bars Stockholders, EN 19 Alloy Steel Round Bar Suppliers in Mumbai India.

The 42CrMoA Round Bars is a grade equivalent to the AISI 4140 round bar. It is composed primarily of chromium (Cr) and molybdenum (Mo). This material offers excellent strength properties along with good machinability characteristics. The EN19 grade is an alloy steel containing chromium-molybdenum-vanadium as its main alloying elements. It also contains small amounts of manganese, sulfur, phosphorus, silicon, nickel, copper and aluminum. This material provides excellent strength properties along with good wear resistance characteristics making it suitable for use in various industrial applications such as automotive parts or machine components. Alloy Steel EN24 Round Bars, Alloy Steel A182 F5 Round Bars and many more grades are also available.


SAE 4140 Rod Manufacturer, AISI/SAE 4140 Chrome Moly Alloy Steel Polished Bars Stockists, SAE 4140 Cr-Mo Alloy Steel Forged Round Bars Distributors, Type EN-19 Chrome Moly Alloy Steel Square Bar, 42CRMOA Steel Bars, SAE 4140 Round Bars, CrMo Alloy Steel 708M40 Hex Rods Dealers in India, EN19 Alloy Steel Bright Bar, Cr-Mo Alloy Steel EN19 Welding Rod, AISI 4140 CrMo Alloy Steel Hexagon Bars in Mumbai.

Alloy Steel EN19 Round Bars

Alloy Steel EN19 Round Bars

The benefits of using 42CrMoA Round Bars grades include their high strength properties which make them suitable for use in demanding industrial applications; their good machinability characteristics; their wear resistance properties; their ability to be heat treated; their corrosion resistance properties; compared to other steels; their availability in numerous sizes; and their wide range of grades that can be used for different purposes depending on the application requirements. The EN19 grade provides improved toughness over the AISI 4140 while still offering good wear resistance along with high strength properties while the SAE Grade offers improved hardness over the AISI 4140 while still providing excellent machinability characteristics. Different types of products are available, such as SMO 254 UNS S31254 Forged Fittings, Socket Weld Raised Face Flanges, etc.

AISI 4140 and 42CrMoA are two popular alloys used in many industrial applications due to their excellent physical properties such as high strength combined with good machinability characteristics. The EN19 grade offers improved toughness compared to the AISI 4140 while still offering good wear resistance along with high strength properties while the SAE Grade offers improved hardness over the AISI 4140 while still providing excellent machinability characteristics making them ideal for many different types of industrial applications depending on the needs.

What is SAE 4140 Round Bars?

SAE 4140 round bars are high-strength steel bars made from a chromium-molybdenum alloy. They have high fatigue strength, impact resistance & toughness, making them ideal for heavy-duty applications. SAE 4140 round bars are commonly used in manufacturing gears, shafts, and axles, as well as in the oil and gas, automotive, and construction industries.

What are the uses of SAE 4140 Round Bars?

SAE 4140 round bars are used in various heavy-duty applications that require high strength, toughness, and durability. They are commonly used in manufacturing gears, shafts, and axles, as well as in the construction, automotive, and oil and gas industries. SAE 4140 round bars are also used to manufacture tools, dies & molds.

DIN 1.7225 Chrome Moly Hot-Rolled Round Rods Stockyards, 42CrMoA Forged Steel Round Bar, Cr-Mo Alloy Steel EN19 Spring Bars Exporters, AISI 4140 Alloy Steel Octagons Bar, 42CRMOA High Tensile Steel Round Bar, AISI 4140 Alloy Steel Bar, 4140 AISI Alloy Steel Forged Bars, Alloy Steel 42CrMoA Threaded Rods, Alloy Steel SAE 4140 Flat Bar Suppliers in Mumbai, Chrome Moly EN 19 Rectangular Bars Traders, CrMo Alloy Steel EN19 Cold Finish Round Bar.

Alloy Steel EN19 Bars Specification

Standard ASTM, ASME and API

Range 4 mm to 350 mm dia

Length 1000 mm Long To 6000 mm Long

Finish Bright, Polish & Black

Condition Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished

Form Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.

Grade Alloy Steel AISI 4140, 42CrMoA, EN19, SAE 4140 Round Bars Werkstoff (1.7225) )

Get Quote

EN19 Cr-Mo Alloy Steel Round Bar Equivalent Indian Standard

BS 970 1991 BS 970 1955 EN AISI/SAE Werkstoff
708M40 EN19 4140 1.7225

Werkstoff 1.7225 Alloy Steel Cold Drawn Round Bar Chemical Composition

Typical Chemical composition of EN19
C SI MN S P Cr Mn Mo
0.35~0.45 0.10~0.35 0.45/0.70 ≤0.050 ≤0.035 0.90~1.50 0.50~0.80 0.20~0.40

Size Chart of 4140 alloy steel round bar

Types SIZES (Millimeter) SIZES (In) Tolerance (ISO)
Cold Drawn and Ground 10.00 – 75.00 5/6" – 2.50" h8-h9-h10-h11
Peeled and Ground 20.00 – 50.00 3/4″ – 2.00" h9-h10-h11
Peeled and Polished 40.00 – 150.00 1.50" – 6.00" h11, h11-DIN 1013
Cold Drawn and Polish 3.00 – 75.00 1/8" – 3.00" h8-h9-h10-h11

Size Chart of 4140 alloy steel round bar

Melting Point (°C) 1425
Density (G/CM 3) 8.08
Melting Point (°F) 2600
Density (LB/IN 3) 0.292

4140 HT Round Bar Weight Chart

Size (inch.) 4140 Heat Treated Round Bar Wght / Foot in lbs
1/4" 00.167
5/16" 00.261
3/8" 00.376
7/16" 00.511
1/2" 00.668
9/16" 00.845
5/8" 1.043
11/16" 1.262
3/4" 1.502
13/16" 1.763
7/8" 2.045
15/16" 2.347
1" 2.670
1 1/16" 3.015
1 1/8" 3.380
1 3/16" 3.766
1 1/4" 4.172
1 5/16" 4.600
1 3/8" 5.049
1 7/16" 5.518
1 1/2" 6.008
1 9/16" 6.519
1 5/8" 7.051
1 3/4" 8.178
1 7/8" 9.388
1 15/16" 10.020
2" 10.680
2 1/8" 12.060
2 1/4" 13.520
2 3/8" 15.060
2 7/16" 15.870
2 1/2" 16.690
2 5/8" 18.400
2 3/4" 21.130
2 7/8" 22.070
3" 25.050
3 1/4" 29.300
3 1/2" 33.890
3 3/4" 38.810
4" 44.070
4 1/4" 48.230
4 3/8" 51.110
4 1/2" 55.590

AISI 4140 Steel Bar Supply Form & Size & Tolerance

Supply Form Size(mm) Process Tolerance
Round Φ6-Φ100 Cold Drawn Bright/Black Best H11
Φ16-Φ350 Hot Rolled Black -0/+1mm
Peeled/ground Best H11
Φ90-Φ1000 Hot Forged Black -0/+5mm
Rough Turned -0/+3mm
Flat/Square/Block Thickness :120-800 Hot Forged Black -0/+8mm
Width:120-1500 Rough Machined -0/+3mm

Alloy Steel 4140 Hex Bar Physical Properties

Melting Point (°C) 1425
Density (G/CM 3) 8.08
Melting Point (°F) 2600
Density (LB/IN 3) 0.292

4140 HT Round Bar Weight Chart

Size (inch.) 4140 Heat Treated Round Bar Wght / Foot in lbs
1/4" 00.167
5/16" 00.261
3/8" 00.376
7/16" 00.511
1/2" 00.668
9/16" 00.845
5/8" 1.043
11/16" 1.262
3/4" 1.502
13/16" 1.763
7/8" 2.045
15/16" 2.347
1" 2.670
1 1/16" 3.015
1 1/8" 3.380
1 3/16" 3.766
1 1/4" 4.172
1 5/16" 4.600
1 3/8" 5.049
1 7/16" 5.518
1 1/2" 6.008
1 9/16" 6.519
1 5/8" 7.051
1 3/4" 8.178
1 7/8" 9.388
1 15/16" 10.020
2" 10.680
2 1/8" 12.060
2 1/4" 13.520
2 3/8" 15.060
2 7/16" 15.870
2 1/2" 16.690
2 5/8" 18.400
2 3/4" 21.130
2 7/8" 22.070
3" 25.050
3 1/4" 29.300
3 1/2" 33.890
3 3/4" 38.810
4" 44.070
4 1/4" 48.230
4 3/8" 51.110
4 1/2" 55.590

Other Types of Chrome Moly Alloy Steel GB 42CrMoA Round Bars & Rods

  • Alloy Steel EN19 Round Bar and Rod
  • CrMo Alloy Steel SAE 4140 Square Round Bars and Rods
  • Cr-Mo Alloy Steel GB 42CrMoA Hex Bars & Rods
  • Chrome Moly 708M40 Flat Bars
  • Alloy Steel EN19 Threaded Bars and Rods

Suppliers of Alloy Steel EN-19 Round Bars, Exporters of EN19 CrMo Round Rods, Cr-Mo EN 19 Bars Stockholders, Cr-Mo Alloy Steel GB 42CrMoA Rods Stockists, AISI/SAE 4140 Cheap CrMo Alloy Steel Round Bars, Chrome Alloy Steel Werkstoff 1.7225 Round Bars, AISI 4140 Cr-Mo Alloy Steel Forged Round Bars, Cr-Mo Alloy Steel 42CrMoA Bright Bars, CrMo 708M40 Black Round Bars, SAE 4140 Alloy Steel Bars Traders, EN19 CrMo Alloy Steel Square Bar, Cr-Mo Alloy Steel SAE 4140 Bars, 708M40 Alloy Steel Bars, CrMo Alloy Steel AISI 4140 hot finished hexagon Rods, Cold Finished CrMo Alloy Steel EN19 Hex Bars, Lowest Price Alloy Steel 42CrMoA Bars wholesalers, AISI/SAE 4140 Cr-Mo Alloy Steel EN19 Cold Drawn Bars, Alloy Steel Werkstoff 1.7225 Hot Rolled Round Bars Distributors in Maharashtra, CrMo Alloy Steel 42CrMoA Half Round Rods, Alloy Steel SAE 4140 Flat Bars, EN19 CrMo Alloy Steel Rectangular Bars vendors, Buy EN-19 Alloy Steel Threaded Rod, AISI/SAE 4140 CrMo Alloy Steel Triangle Bars, Chrome Moly EN19 Round Profile Bars, EN-19 Alloy Steel Polished Round Bars Stockyard, Cr-Mo EN19 Smooth Turned Round Bars, Alloy Steel AISI 4140 Rough Turned Bar, Alloy Steel EN19 Peeled Round Bar, CrMo Alloy Steel SAE 4140 Threaded Rods, AISI 4140 Cr-Mo Alloy Steel Octagonal Bars, Chrome Moly EN 19 Welding Rods, Alloy Steel EN-19 Bars Manufactures in Mumbai India

We are Suppliers and Exporters of Chrome Moly Alloy Steel GB 42CrMoA Round Bars in Cities Like

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

We are Suppliers and Exporters of AISI/SAE 4140 CrMo Alloy Steel Round Bars in Countries Like

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