4140 Hollow Bars Manufacturer, Stockist and Exporter

​Super Metal Manufacturing Co. is a leading manufacturer, stockist, and exporter of 4140 Hollow Bars, offering premium quality alloy steel products designed to meet the critical demands of various industries. 4140 alloy steel, known for its high tensile strength, toughness, and excellent fatigue resistance, is widely used in the production of mechanical and automotive parts. The hollow bar form is especially beneficial for components requiring internal machining or reduced weight without compromising strength.

Our 4140 Hollow Bars are exported extensively to Saudi Arabia, Qatar, Kuwait, UAE, Oman, and Spain, where they are used in oil & gas refineries, petrochemical industries, and heavy machinery manufacturing. As a trusted 4140 Hollow Bars Manufacturer Stockist and Exporter in Saudi Arabia, Qatar, and Kuwait, we offer custom sizes, lengths, and surface finishes to suit diverse engineering applications and client-specific requirements.


42crmo4 Hollow bars

Super Metal Manufacturing Co. serves high-tech and industrial sectors in Japan, Germany, and South Korea with precision-engineered 4140 Hollow Bars that comply with international standards such as ASTM A519 and EN 10294-1. These regions depend on high-performance materials, and our reputation as a reliable 4140 Hollow Bars Manufacturer Stockist and Exporter in Japan and Germany reflects our dedication to consistent quality, prompt delivery, and technical expertise.

Material Specification Chart of 4140 Hollow Bars

Specifications ASTM A182, ASME SA182
standard EN, DIN, JIS, ASTM, BS, ASME, AISI
Range 25mm to 250mm OD
Thickenss 0.5mm to 500mm Diameter
Finish Black, Bright Polished
Form Hollow,Billet, Ingot, Forging Etc.

SAE 4140 Hollow 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

In Western regions such as the United States, the United Kingdom, and South Africa, our 4140 Hollow Bars are in high demand across industries including defense, marine engineering, and construction. As a leading 4140 Hollow Bars Manufacturer Stockist and Exporter in the United States and the United Kingdom, we support customers with competitive pricing, large inventory, and full traceability of material certification, ensuring complete compliance with international specifications.

We also support fast-growing industrial hubs like Oman and the UAE, where infrastructure and mechanical development rely on robust alloy steel products. Our advanced manufacturing capabilities, strict quality control systems, and global logistics support make us a dependable 4140 Hollow Bars Manufacturer Stockist and Exporter in UAE and Oman. Whether it's a bulk order or a custom project, we ensure timely delivery and professional service.


42crmo4 Hollow bars

With strong supply networks and in-house forging and machining units, Super Metal Manufacturing Co. is proud to be a one-stop destination for 4140 Hollow Bars. Clients across South Korea, South Africa, and Spain recognize us for our commitment to excellence and ability to meet complex technical specifications. As a global 4140 Hollow Bars Manufacturer Stockist and Exporter, we invite engineering firms, fabricators, and EPC contractors to partner with us for consistent, high-quality alloy steel hollow bar solutions.


Alloy Steel 42crmo4 Hollow Bars Dimensions Standard

Outer Diameter (OD) Wall Thickness (WT) Inner Diameter (ID) Approx. Weight (kg/m) Tolerance (mm)
50 mm 10 mm 30 mm ~9.6 kg/m ±0.5 mm
60 mm 10 mm 40 mm ~12.6 kg/m ±0.5 mm
70 mm 12 mm 46 mm ~17.4 kg/m ±0.5 mm
80 mm 15 mm 50 mm ~22.3 kg/m ±0.5 mm
90 mm 15 mm 60 mm ~26.1 kg/m ±0.5 mm
100 mm 20 mm 60 mm ~36.7 kg/m ±0.5 mm
110 mm 20 mm 70 mm ~40.8 kg/m ±0.5 mm
120 mm 25 mm 70 mm ~51.4 kg/m ±0.5 mm
130 mm 25 mm 80 mm ~56.9 kg/m ±0.5 mm
150 mm 30 mm 90 mm ~74.7 kg/m ±0.5 mm

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.