4140 Round Bar Supplier

Super Metal Manufacturing Co. is a leading 4140 round bar supplier catering to global industrial demands across various sectors such as automotive, defense, oil & gas, construction, and heavy engineering. As a trusted name in the alloy steel market, we specialize in supplying high-quality 4140 round bars, known for their excellent mechanical strength, toughness, and versatility. Our bars comply with international standards like ASTM A29 and AISI 4140, ensuring reliability and performance in high-stress applications.

The 4140 round bar is a chromium-molybdenum alloy steel with exceptional properties including high tensile strength, good impact resistance, and excellent wear resistance. This makes it suitable for manufacturing gears, shafts, axles, crankshafts, and firearm components. As a prominent 4140 round bar supplier in Saudi Arabia, Qatar, and the United Arab Emirates (UAE), we ensure that each product meets stringent quality parameters and is delivered with complete traceability and certification.

Super Metal Manufacturing Co. stocks and exports a wide range of 4140 round bars in both normalized and quenched & tempered conditions. We are a trusted 4140 round bar supplier in Spain, Oman, Japan, and Germany, offering cut-to-length services, precision machining, and surface finishes like black, bright, and turned. Our extensive inventory allows us to fulfill urgent requirements for both small and bulk quantities, with efficient global logistics support.

Material Specification Chart of 4140 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

As a well-established 4140 round bar supplier in the United States, the United Kingdom, and South Korea, we cater to OEMs, fabricators, and engineering companies that demand consistent quality and timely delivery. The excellent heat treatment capabilities and machinability of 4140 steel make it a preferred material in the production of structural parts, pressure vessels, and defense-grade components. Our team ensures every shipment is accompanied by material test certificates and third-party inspection reports upon request.

We also proudly serve as a reliable 4140 round bar supplier in South Africa, meeting the requirements of mining and heavy equipment industries. With a commitment to customer satisfaction, technical expertise, and stringent quality control, Super Metal Manufacturing Co. continues to be a globally trusted source for alloy steel round bars. Whether you’re in need of rough stock or precision-cut components, we offer the right solution tailored to your industry.

Choose Super Metal Manufacturing Co. as your preferred 4140 round bar supplier in Saudi Arabia, Qatar, UAE, Spain, Oman, Japan, Germany, United States, United Kingdom, South Korea, and South Africa — where quality meets performance and delivery meets expectations.

Alloy Steel 4140 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

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.