D2 Round Bar Supplier

D2 is a tool grade steel known for its excellent resistance in aqueous environments like water, its chromium content. Comprising about 12% chromium and 1.5% carbon, D2 Tool Steel Round Bars are classified as high carbon alloys. These bars can be hardened through air hardening. Heat treatment of the UNS T30402 D2 Round Bar results in a hardness range of 55 HRC to 62 HRC.

Its high hardness properties make the surface resistant to wear and abrasion. Additionally, the formation of chromium carbide in the DIN 1.2379 D2 steel Rod contributes to its wear and abrasion resistance by reducing friction.

Amardeep Steel is a supplier of D2 Tool Steel Round Bars, a high-carbon alloy with about 12% chromium, making it resistant to aqueous media like water. This chromium content, combined with 1.5% carbon, classifies it as a high-carbon alloy. The material can be air-hardened through heat treatment, achieving hardness levels between 55 HRC and 62 HRC. This high hardness makes D2 Round Bars resistant to wear and abrasion, thanks to the formation of chromium carbide, which reduces friction. D2 steel can be machined when annealed and is known for its moderate corrosion resistance. Due to these properties, D2 Round Bars are popular in industries that manufacture tools such as rolls, punches, dies, knives, and food equipment. Amardeep Steel offers top-quality D2 Tool Steel Round Bars, suitable for steel manufacturing, petrochemical industries, fire protection systems, chemical industries, and shipping. They also supply various other round bars, including XM19/Nitronic, M35 High-Speed Steel, H13 High-Speed Steel, Duplex, and H10 Tool Steel Round Bars.

D2 Round Bar Specification

Standard : ISI,ASTM,BS,DIN,GB,JIS,AISI,JIS,DIN,GB
Material Grade : AISI O1 (DIN-1.2510) (IS-T90Mn6WCr2) Tool Steel Round Bar
Diameter : : 10 mm ~ 900 mm
Type : Flats, Round, Square, Forged.

D2 Round Bar Chemical Composition

Carbon	1.50/1.60
Chromium	11.50/12.00
Molybdenum	0.70/0.80
Manganese	0.20/0.40
Vanadium	0.80/1.00
Silicon	0.20/0.60
Phosphorus	0.025 max
Sulfur	0.015 max

D2 Round Bar Mechanical Properties

mechanical Properties	Metric	Imperial
Hardness, Knoop (converted from Rockwell C hardness)	769	769
Hardness, Rockwell C	62	62
Hardness, Vickers	748	748
Izod impact unnotched	77.0 J	56.8 ft-lb
Poisson’s ratio	0.27-0.30	0.27-0.30
Elastic modulus	190-210 GPa	27557-30457 ksi

D2 Round Bar Physical Properties

Properties	Metric	Imperial
Density	7.7 x 1000 kg/m3	0.278 lb/in3

D2 Round Bar Equivalent Grade

Country	USA	German	Japan
Standard	ASTM A681	DIN EN ISO 4957	JIS G4404
Grades	D2	1.2379/X153CrMo12	SKD11

Heat Treatment of D2 steel bar

Soft annealing °C	Cooling	Hardness HB
840 – 870	Furnace	max. 250

Stress-relief annealing °C	Cooling
approx. 660-710	Furnace

Hardening °C	Quenching	Hardness after quenching HRC
1000-1050	Air, oil or saltbath, 500-550 °C	63

Tempering °C after quenching	100	200	300	400	500	525	550	600
HRC	64	61.5	58.5	58.5	59	60	57	50

Thermal Properties of DIN 1.2379 D2 steel Rod

Properties		Conditions
Properties		T (°C)	Treatment
Thermal expansion	10.4 x 10-6/ºC	20-100	–

D2 Round Bar Tolerance

1/2 - 1 1/2 Dia	+.010/.020"
1 5/8 up to 3 Dia	+.015/.025"
3 thru 6 Dia	+.062/.188"
6 1/4 thru 7 Dia	+.093/.188"
Over 7 Dia	+.125/.250"

D2 Steel Rod Density

Properties	Metric	Imperial
Density	7.7 x 1000 kg/m3	0.278 lb/in3

D2 Round Bar Size Chart

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

D2 Round Bar Application

Stamping or Forming Dies
Punches
Forming Rolls
Knives, slitters, shear blades
Tools
Scrap choppers
Tyre shredders

We Supply Globally

We Supply Our D2 Round Bar to various countries like Mexico, Ireland, Oman, India, Russia, Algeria, Turkey, Bahrain, China, Trinidad & Tobago, Austria, Qatar, Ecuador, United Arab Emirates, Poland, Jordan, Libya, Philippines, Hungary, Nigeria, Bulgaria, Indonesia, Chile, Macau, Colombia, Croatia, Germany, Ghana, Argentina, South Africa, Greece, Switzerland, Hong Kong, Kuwait, France, Italy, Costa Rica, Kenya, Namibia, Azerbaijan, Japan, Venezuela, Morocco, Brazil, New Zealand, United Kingdom, Canada, Mexico, Bolivia, Romania, Iraq, Tibet, Angola, Chile, Estonia, Puerto Rico, South Korea, Nigeria, Finland, Tunisia, Slovakia, Vietnam, Egypt, Lithuania, Czech Republic, Bhutan, Peru, Zimbabwe, Ukraine, Australia, Gabon, Taiwan, Sri Lanka, Thailand, Lebanon, Kazakhstan, Belarus, Gambia, Norway, Netherlands, Bangladesh, Sweden, Pakistan, Serbia, Iran, Iran, Nepal, Spain, Poland, Yemen, United States, Singapore, Malaysia, Israel, Mongolia, Belgium, Afghanistan, Denmark, Portugal, Saudi Arabia.

We Supply Worldwide

We Supply Our D2 Round Bar to various cities like Toronto, Al Khobar, Chandigarh, Haryana, Perth, Algiers, Ahvaz, Ulsan, Moscow, Istanbul, Howrah, Singapore, Ho Chi Minh City, Port-of-Spain, London, Rajkot, New York, New Delhi, Nagpur, Kuwait City, Karachi, Surat, Ernakulam, Gimhae-si, Granada, Kanpur, Kolkata, Lahore, Madrid, Visakhapatnam, Secunderabad, Bangkok, Mumbai, Coimbatore, Bogota, Milan, Tehran, Ranchi, Pimpri-Chinchwad, Montreal, Colombo, Bhopal, Seoul, Edmonton, Aberdeen, Caracas, Busan, Brisbane, Sydney, Calgary, Sharjah, Rio de Janeiro, Chennai, Chiyoda, Geoje-si, Jakarta, Thiruvananthapuram, Courbevoie, Riyadh, Indore, Jeddah, Hyderabad, Kuala Lumpur, Baroda, Ankara, Mexico City, Dubai, Gurgaon, Vung Tau, Lagos, Al Jubail, Melbourne, Los Angeles, Petaling Jaya, Bengaluru, Atyrau, Jamshedpur, Santiago, Hanoi, Thane, Pune, Doha, Faridabad, Vadodara, La Victoria, Muscat, Ludhiana, Jaipur, Navi Mumbai,