DIPTI METAL INDUSTRIES
Alloy Steel AISI 4140 Manufacturer, AISI 4140 Supplier, & AISI 4140 Exporter of Bars & Rods (42CrMo4, UNS G41400)
DIPTI METAL INDUSTRIES is a leading Alloy Steel AISI 4140 Manufacturer, reliable AISI 4140 Supplier, and authorized AISI 4140 Exporter under the DIPTI® brand. We specialize in Alloy Steel 4140 (UNS G41400 / 42CrMo4), a Chromium-Molybdenum "Chromoly" steel engineered for *high tensile strength*, excellent *hardenability*, and superior *impact resistance*. We provide various profiles including Round, Square, and Hexagonal Bars, as well as Rods, available in Hot Rolled, Cold Drawn, or Heat Treated (Quenched & Tempered) conditions. As a top AISI 4140 Bar Manufacturer in India, we ensure full compliance to ASTM A29, SAE J404, and international equivalents. We are a trusted 4140 Steel Stockiest serving clients in Mumbai and globally.
Technical Specifications & Market Synonyms
We cater to diverse technical requirements as a 42CrMo4 Steel Bar Supplier and UNS G41400 Rods Exporter. Our inventory includes AISI 4140 Hot Rolled Bars, AISI 4140 Cold Drawn Bars, AISI 4140 Annealed Bars, and AISI 4140 Quenched and Tempered (Q&T) Bars. Recognized as a top EN19 Steel Bar Manufacturer and 1.7225 Steel Supplier, we stock SCM440 Round Bars for Asian markets. Whether you need 4140 Forged Bars for heavy machinery or 4140 Bright Bars for precision machining, DIPTI is your go-to AISI 4140 Stockist in Mumbai. We supply 4140 Hexagonal Bars for fasteners and 4140 Flat Bars for wear plates.
About Dipti Metal Industries – Your Trusted AISI 4140 Partner
Dipti Metal Industries is a globally recognized Alloy Steel AISI 4140 Manufacturer and AISI 4140 Exporter. As one of the leading manufacturers in India, our dedication to quality for AISI 4140 (42CrMo4) is unwavering, ensuring materials meet the strict demands of automotive, oil & gas, and heavy machinery sectors. We maintain a huge inventory of Alloy Steel rods ready for immediate dispatch.
Our status as a premier AISI 4140 Round Bar Stockist in Mumbai allows us to offer competitive 4140 Steel price per kg rates for bulk orders. Whether you require AISI 4140 Forged Bars for heavy-duty axles or precision 4140 Bright Bars for CNC machining, our facility is equipped to handle diverse requirements. We also function as a reliable 42CrMo4 Steel Wholesaler, supplying material that meets European EN 10083 standards, often sought as 1.7225 Steel Bars or EN19 Rods in the UK market.
What Defines Us
- 45+ Years of Industrial Expertise
- Worldwide Export Network (65+ Countries)
- Strict Quality Control with MTC (EN 10204 3.1)
- Professional Export Packing & Shipping
Our Commitment
As an AISI 4140 Supplier, we deliver precision-engineered products. Each order of 4140 bars is handled with meticulous attention to tolerances, straightness, and heat treatment cycles (Annealing, Normalizing, Q&T).
Key Features of Alloy Steel AISI 4140 (Chromoly)
High Strength & Hardenability
AISI 4140 is a deep-hardening steel containing Chromium and Molybdenum. It offers high tensile strength and can be heat treated to achieve hardness superior to carbon steels. This makes it a preferred High Tensile Steel for critical load-bearing components.
Toughness & Impact Resistance
Maintains excellent toughness and ductility even at high strength levels. Ideal for parts subjected to shock, vibration, and heavy loads, often used as 4140 Shaft Steel.
Wear & Abrasion Resistance
The alloy composition provides good resistance to wear and abrasion, extending the service life of gears, shafts, and bolts. Often supplied as 4140 Normalized Bars for improved homogeneity.
Machinability & Fabrication
In the annealed condition, AISI 4140 offers good machinability. It responds well to conventional machining methods such as turning and milling. We can supply 4140 Annealed Bars ready for fabrication.
International Standards & Equivalents for AISI 4140
| Region / Standard | Grade / Designation | Specification |
|---|---|---|
| United States (UNS) | UNS G41400 Supplier | - |
| United States (AISI/SAE) | 4140 Supplier | ASTM A29 Supplier, ASTM A322 Supplier, SAE J404 Supplier |
| Europe (EN/DIN) | 42CrMo4 Supplier / 1.7225 Supplier | EN 10083-3 Supplier |
| Japan (JIS) | SCM440 Supplier | JIS G4105 Supplier |
| United Kingdom (BS) | 708M40 / EN19 Supplier | BS 970 Supplier |
| China (GB) | 42CrMo Supplier | GB/T 3077 Supplier |
Chemical Composition of AISI 4140 Alloy Steel (Typical)
Mechanical Properties (Typical Q&T Condition)
Available Shapes & Dimensions
Round Bars
We are a leading AISI 4140 Round Bar Manufacturer offering diameters from 6mm to 500mm. Options include 4140 Hot Rolled Round Bars for heavy machining and 4140 Cold Drawn Round Bars for precision tolerances.
Square Bars
Our AISI 4140 Square Bar inventory supports structural and component manufacturing. We supply 42CrMo4 Square Bars in both Hot Rolled and Cold Drawn conditions to meet EN standards.
Hex Bars
Precision 4140 Hex Bars are ideal for manufacturing high-strength nuts and bolts. We are a key AISI 4140 Hex Bar Supplier for fastener industries requiring ASTM A193 Grade B7 equivalent properties.
Flat Bars & Blocks
We offer AISI 4140 Flat Bars and rectangular blocks cut from plate or forged billets. These are essential for tool holders, dies, and mold bases, available as 4140 Forged Blocks.
Supply Range & Delivery Conditions
DIPTI Metal Industries provides a comprehensive range of AISI 4140 Steel Bars to meet global engineering needs. We supply material in various surface finishes including Black Bar, Bright Bar, Peeled and Polished, and Centerless Ground Bar for shafting applications. Our heat treatment capabilities ensure we can deliver 4140 Quenched and Tempered (Q&T) Bars to specific Hardness (HRC) requirements, as well as Annealed and Normalized conditions. We can offer cut-to-length services for 4140 Billets and Heavy Rounds, making us a versatile UNS G41400 Bar Exporter.
Key Applications
Automotive & Transport
Used for Axles, crankshafts, connecting rods, and steering knuckles. Our 4140 Axle Steel provides the necessary fatigue strength for heavy transport vehicles.
Oil & Gas Industry
Critical for Drill collars, subsea components, and valves. As a 4140 Drill Collar Steel Supplier, we ensure materials meet NACE MR0175 standards for sour service.
Heavy Machinery
Ideal for Conveyor rolls, hydraulic shafts, and pinions. We supply 4140 Gear Steel that withstands high stress in mining and construction equipment.
Fasteners & Tools
High-strength bolts, studs, and tie rods. Our 4140 Fastener Steel stock is perfect for manufacturing Grade B7 studs and high-tensile nuts.
Global Export Markets: AISI 4140 Supplier from India
Dipti Metal Industries exports Alloy Steel AISI 4140 bars to OEMs and EPC contractors worldwide. We are an experienced AISI 4140 Exporter serving major cities globally:
- USA: Houston, New York, Chicago, Los Angeles, Philadelphia, Phoenix, San Antonio
- Canada: Toronto, Vancouver, Montreal, Calgary, Edmonton, Halifax
- Mexico: Mexico City, Monterrey, Guadalajara, Veracruz
- Costa Rica: San Jose
- Panama: Panama City
- Trinidad & Tobago: Port of Spain
- Jamaica: Kingston
- Dominican Republic: Santo Domingo
- Guatemala: Guatemala City
- Honduras: Tegucigalpa
- El Salvador: San Salvador
- Nicaragua: Managua
- Belize: Belmopan
- Bahamas: Nassau
- Barbados: Bridgetown
- Saint Lucia: Castries
- Saint Kitts and Nevis: Basseterre
- Haiti: Port-au-Prince
- Cuba: Havana
- Puerto Rico: San Juan
- Brazil: São Paulo, Rio de Janeiro, Salvador, Brasilia
- Argentina: Buenos Aires, Córdoba, Rosario
- Chile: Santiago, Valparaíso, Antofagasta
- Colombia: Bogotá, Medellín, Cali
- Peru: Lima, Arequipa
- Venezuela: Caracas, Maracaibo
- Ecuador: Quito, Guayaquil
- Bolivia: La Paz, Sucre
- Uruguay: Montevideo
- Paraguay: Asunción
- Guyana: Georgetown
- Suriname: Paramaribo
- Germany: Berlin, Munich, Frankfurt, Hamburg, Cologne
- UK: London, Manchester, Birmingham, Glasgow, Liverpool
- France: Paris, Marseille, Lyon, Toulouse
- Italy: Rome, Milan, Naples, Turin
- Spain: Madrid, Barcelona, Valencia, Seville
- Netherlands: Amsterdam, Rotterdam
- Belgium: Brussels, Antwerp
- Russia: Moscow, Saint Petersburg, Novosibirsk
- Poland: Warsaw, Krakow
- Switzerland: Zurich, Geneva
- Sweden: Stockholm, Gothenburg
- Norway: Oslo, Bergen
- Austria: Vienna
- Greece: Athens, Thessaloniki
- Turkey: Istanbul, Ankara, Izmir
- Portugal: Lisbon, Porto
- Denmark: Copenhagen
- Finland: Helsinki
- Czech Republic: Prague
- Romania: Bucharest
- Ukraine: Kyiv
- Hungary: Budapest
- Ireland: Dublin
- Belarus: Minsk
- Bulgaria: Sofia
- Serbia: Belgrade
- Slovakia: Bratislava
- Croatia: Zagreb
- Slovenia: Ljubljana
- Lithuania: Vilnius
- Latvia: Riga
- Estonia: Tallinn
- Iceland: Reykjavik
- Luxembourg: Luxembourg City
- Malta: Valletta
- Cyprus: Nicosia
- Bosnia: Sarajevo
- Albania: Tirana
- North Macedonia: Skopje
- Montenegro: Podgorica
- Moldova: Chisinau
- Andorra: Andorra la Vella
- San Marino: San Marino
- Monaco: Monaco
- Liechtenstein: Vaduz
- UAE: Dubai, Abu Dhabi, Sharjah
- Saudi Arabia: Riyadh, Jeddah, Mecca, Dammam
- Qatar: Doha
- Kuwait: Kuwait City
- Oman: Muscat
- Bahrain: Manama
- Israel: Tel Aviv, Jerusalem
- Jordan: Amman
- Lebanon: Beirut
- Iraq: Baghdad, Basra
- Iran: Tehran, Mashhad
- Yemen: Sana'a
- Syria: Damascus
- India: Mumbai, Delhi, Bangalore, Chennai, Kolkata
- China: Beijing, Shanghai, Guangzhou, Shenzhen
- Japan: Tokyo, Osaka, Yokohama
- South Korea: Seoul, Busan, Incheon
- Singapore: Singapore
- Malaysia: Kuala Lumpur
- Thailand: Bangkok
- Indonesia: Jakarta, Surabaya
- Vietnam: Ho Chi Minh City, Hanoi
- Philippines: Manila
- Pakistan: Karachi, Lahore
- Bangladesh: Dhaka
- Sri Lanka: Colombo
- Nepal: Kathmandu
- Kazakhstan: Almaty, Astana
- Uzbekistan: Tashkent
- Turkmenistan: Ashgabat
- Azerbaijan: Baku
- Georgia: Tbilisi
- Armenia: Yerevan
- Cambodia: Phnom Penh
- Laos: Vientiane
- Myanmar: Yangon
- Mongolia: Ulaanbaatar
- Afghanistan: Kabul
- Brunei: Bandar Seri Begawan
- Maldives: Malé
- Bhutan: Thimphu
- Kyrgyzstan: Bishkek
- Tajikistan: Dushanbe
- Timor-Leste: Dili
- South Africa: Johannesburg, Cape Town, Durban
- Nigeria: Lagos, Abuja
- Egypt: Cairo, Alexandria
- Algeria: Algiers
- Morocco: Casablanca, Rabat
- Kenya: Nairobi
- Ethiopia: Addis Ababa
- Ghana: Accra
- Tanzania: Dar es Salaam
- Uganda: Kampala
- Angola: Luanda
- Tunisia: Tunis
- Sudan: Khartoum
- Libya: Tripoli
- Zimbabwe: Harare
- Zambia: Lusaka
- Mozambique: Maputo
- Senegal: Dakar
- Ivory Coast: Abidjan
- Cameroon: Yaoundé
- Madagascar: Antananarivo
- Mali: Bamako
- Burkina Faso: Ouagadougou
- Malawi: Lilongwe
- Rwanda: Kigali
- Niger: Niamey
- Guinea: Conakry
- Chad: N'Djamena
- Somalia: Mogadishu
- Benin: Porto-Novo
- Burundi: Gitega
- South Sudan: Juba
- Togo: Lomé
- Sierra Leone: Freetown
- Liberia: Monrovia
- Central African Republic: Bangui
- Mauritania: Nouakchott
- Eritrea: Asmara
- Namibia: Windhoek
- Gambia: Banjul
- Botswana: Gaborone
- Gabon: Libreville
- Lesotho: Maseru
- Guinea-Bissau: Bissau
- Equatorial Guinea: Malabo
- Mauritius: Port Louis
- Eswatini: Mbabane
- Djibouti: Djibouti City
- Comoros: Moroni
- Cabo Verde: Praia
- Sao Tome & Principe: São Tomé
- Seychelles: Victoria
- Australia: Sydney, Melbourne, Brisbane, Perth
- New Zealand: Auckland, Wellington
- Papua New Guinea: Port Moresby
- Fiji: Suva
- Solomon Islands: Honiara
- Vanuatu: Port Vila
- Samoa: Apia
- Kiribati: South Tarawa
- Tonga: Nuku'alofa
- Micronesia: Palikir
- Marshall Islands: Majuro
- Palau: Ngerulmud
- Tuvalu: Funafuti
- Nauru: Yaren
Get a Quote for Alloy Steel AISI 4140 Bars
AISI 4140 Bars FAQ
We supply AISI 4140 bars compliant with ASTM A29 (General requirements for carbon and alloy steel bars), ASTM A322, and equivalent standards like EN 10083-3 (42CrMo4) and SAE J404.
Yes, AISI 4140 can be welded using all conventional methods. However, due to its higher carbon content compared to 4130, proper pre-heating and post-weld heat treatment are essential to prevent cracking, especially in hardened conditions.
We supply AISI 4140 bars in: 1) Hot Rolled (As Rolled), 2) Annealed (Softened for machining), 3) Normalized, and 4) Quenched & Tempered (Q&T) condition to achieve specific mechanical properties (Hardness/Tensile).
Contact Us
We are a government-recognized Star Export House operating as a premier Manufacturer, Exporter, and Supplier. As a trusted Stockist and Distributor in India, we also act as a reliable Dealer, Trader, and Importer for global projects.