4140 Hex Bars for Artillery Weapons

4140 Hex Bars are high-strength alloy steel products commonly utilized in defense and artillery applications due to their excellent toughness, wear resistance, and fatigue strength. Super Metal Manufacturing Co. is a recognized manufacturer, stockist, and exporter of 4140 Hex Bars, supplying defense and engineering industries across India and global markets. These hexagonal bars are specifically chosen for artillery weapon components where both structural reliability and machinability are critical, such as in gun barrels, breech mechanisms, and mounting systems.

Manufactured from chromium-molybdenum alloy steel, 4140 Hex Bars offer a combination of high tensile strength, good impact resistance, and hardness, especially after heat treatment processes like quenching and tempering. Super Metal Manufacturing Co. produces these bars using precision hot-rolled and cold-drawn methods to achieve dimensional accuracy and a consistent mechanical profile. The hexagonal shape allows for easier gripping and fitment in mechanical assemblies, a key feature in artillery weapon manufacturing.


As a leading stockist and exporter, Super Metal Manufacturing Co. maintains a wide inventory of 4140 Hex Bars in various sizes and lengths, catering to defense contractors, engineering firms, and machinery manufacturers. Their distribution network covers both domestic and international markets, ensuring prompt availability and on-time delivery. The company also provides custom-cut lengths, machining, and surface finishing options based on client specifications and industry standards.

Material Specification Chart of 4140 / EN19 / 42CrMo4 Hex Bars

Specifications ASTM A182, ASME SA182
Standards EN, DIN, JIS, ASTM, BS, ASME, AISI
Range of A/F 10 mm To 250 mm
Finish Black, Bright Polished
Length 1000 mm Long To 6000 mm Long
Form Hex (A/F),Billet, Ingot, Forging Etc.

SAE 4140 / EN19 / 42CrMo4 Hex Bars

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

In addition to manufacturing, the company maintains a robust inventory of 4140 / EN19 / 42CrMo4 Hex Bars to fulfill urgent orders and bulk demands. Their modern infrastructure, along with a well-established distribution network, enables them to cater to both large-scale industrial clients and small engineering firms with equal efficiency.


Super Metal Manufacturing Co. places strong emphasis on quality assurance, ensuring each batch of 4140 Hex Bars undergoes rigorous chemical analysis, mechanical testing, and dimensional inspection. The products comply with standards such as ASTM A29, AISI 4140, and EN equivalents. Material Test Certificates (MTCs) are provided with every dispatch, guaranteeing traceability and compliance with defense sector requirements. This focus on quality and service has established Super Metal Manufacturing Co. as a trusted partner for industries involved in artillery and defense manufacturing.

By consistently delivering top-grade alloy steel products and maintaining global export standards, Super Metal Manufacturing Co. continues to be a trusted name in the supply of 4140 / EN19 / 42CrMo4 Hex Bars across international markets.


Alloy Steel 4140 / EN19 / 42CrMo4 Hex Bars Dimensions Standard

Hex Size (Across Flats) Approx. Weight (kg/m) Tolerances (mm)
10 mm 0.67 kg/m ±0.30
12 mm 0.97 kg/m ±0.30
14 mm 1.33 kg/m ±0.30
17 mm 1.91 kg/m ±0.30
19 mm 2.45 kg/m ±0.30
22 mm 3.29 kg/m ±0.30
24 mm 3.80 kg/m ±0.30
27 mm 4.78 kg/m ±0.50
30 mm 5.88 kg/m ±0.50
32 mm 6.62 kg/m ±0.50
36 mm 8.50 kg/m ±0.50
41 mm 11.18 kg/m ±0.50
46 mm 14.01 kg/m ±0.50
50 mm 16.28 kg/m ±0.50

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: