4140 Alloy Steel Round Bar Exporter from India
Super Metal Manufacturing Co. is an established Indian supplier and exporter of 4140 Alloy Steel Round Bars for international industrial requirements. Our export supply covers different bar sizes, material conditions, surface finishes and cut-to-length requirements.
4140 alloy steel is particularly suitable for components subjected to high mechanical loads. Its chromium and molybdenum alloying elements contribute to hardenability and mechanical performance, while appropriate heat treatment can provide a useful combination of strength and toughness.
As an 4140 Round Bar Exporter from India, we work with industrial buyers, distributors, engineering companies, machinery manufacturers and procurement teams requiring reliable alloy steel material for overseas projects.
What is 4140 Alloy Steel Round Bar?
4140 Alloy Steel Round Bar is a circular alloy steel product containing carbon, chromium and molybdenum along with other elements. It is used extensively in mechanical engineering because of its strength, toughness and hardenability characteristics.
The round bar form is suitable for machining operations including turning, milling, drilling and threading. This makes 4140 suitable for manufacturing shafts, gears, axles, crankshafts, pins, spindles, studs, bolts, rollers and other high-strength components.
Why is 4140 Alloy Steel Used for Export Applications?
4140 is a globally recognized alloy steel grade used in many engineering industries. Its broad application range makes it a practical material for international procurement where customers require chromium-molybdenum alloy steel in standard or customized dimensions.
Depending on the application, 4140 Round Bars can be supplied in different conditions including annealed, normalized, hardened and tempered or quenched and tempered. This flexibility allows buyers to select material suitable for machining or final component manufacturing.
Material Specification Chart
| Grade | AISI 4140 / SAE 4140 |
|---|---|
| Material Type | Chromium Molybdenum Alloy Steel |
| Material Number | 1.7225 / 42CrMo4 |
| Standards | ASTM, ASME, AISI, SAE, EN, DIN, JIS, BS |
| Range of Diameter | 5mm to 500mm |
| Finish | Bright, Black, Forged, Turned Bright |
| Length | 1000 mm Long To 6000 mm Long |
| Form | Round, Billet, Forging |
| Supply Condition | Annealed, Normalized, Hardened & Tempered, Quenched & Tempered |
SAE 4140 / EN19 / 42CrMo4 Round Bars Grade
| Country names | USA | German | British | Japan | China | Australia | |
|---|---|---|---|---|---|---|---|
| Country standards | UNS | AISI / ASTM | DIN | BS | JIS | GB/T | AS |
| Grades | G41400 | 4140 | 1.7225 / 42CrMo4 | EN19 / 817M40 | SCM440 | 42CrMo | 4140 |
4140 Alloy Steel Round Bar Chemical Composition
The chemical composition of 4140 alloy steel provides the grade with its characteristic combination of strength, toughness and hardenability. Carbon contributes to hardness and strength, while chromium and molybdenum support hardenability.
| Element | Typical Composition |
|---|---|
| Carbon (C) | 0.38 – 0.43% |
| Manganese (Mn) | 0.75 – 1.00% |
| Silicon (Si) | 0.15 – 0.35% |
| Chromium (Cr) | 0.80 – 1.10% |
| Molybdenum (Mo) | 0.15 – 0.25% |
| Phosphorus (P) | As per applicable specification |
| Sulfur (S) | As per applicable specification |
Actual chemical composition should be confirmed against the applicable material specification and the Mill Test Certificate for the supplied material.
4140 Alloy Steel Round Bar Manufacturing Process
The manufacturing and processing route for 4140 Round Bars is controlled according to the required dimensions, surface finish, material condition and application. Typical production involves raw material selection, heating, hot working, heat treatment, finishing, straightening, cutting and inspection.
Raw Material Selection
Suitable alloy steel raw material is selected according to the required grade and product specification. Heat identification and material traceability are maintained according to applicable requirements.
Heating and Hot Working
The steel is heated under controlled conditions before rolling or forging. Controlled heating helps support consistent deformation and metallurgical characteristics.
Rolling or Forging
Depending on the required product size and application, the material may be hot rolled or forged into round bar sections.
Heat Treatment
Heat treatment may include annealing, normalizing, hardening, quenching and tempering depending on the required mechanical properties and material condition.
Surface Finishing
Additional operations such as turning, peeling or grinding can be used where improved surface quality and dimensional accuracy are required.
Inspection
Inspection can include chemical analysis, dimensional inspection, surface inspection and mechanical testing according to the applicable purchase specification.
Advantages of 4140 Alloy Steel Round Bars
- High Strength: Suitable for demanding mechanical and engineering components.
- Good Toughness: Provides a useful balance of strength and toughness when suitably processed.
- Good Hardenability: Chromium and molybdenum contribute to the hardenability of the alloy.
- Wear Resistance: Heat-treated 4140 can provide useful resistance to mechanical wear.
- Heat Treatment Capability: Can be supplied in different material conditions according to application requirements.
- Machining Suitability: Suitable material conditions can be machined into precision engineering components.
- Wide Industrial Use: Used in automotive, machinery, construction, mining, agriculture and general engineering.
4140 Alloy Steel Round Bar Applications
4140 Round Bars are used in many industrial applications where strength and toughness are important.
Automotive Components
Applications include shafts, axles, gears, crankshafts, pins and spindles used in automotive and transportation equipment.
Heavy Machinery
4140 is used for drive shafts, gears, rollers, axles, pins and other highly loaded machinery components.
Construction Equipment
The material can be used for mechanical components such as pins, shafts and axles in construction machinery.
Mining Equipment
4140 Round Bars are suitable for selected shafts, pins, gears and other components subjected to demanding mechanical service.
Agricultural Machinery
Applications include gears, shafts, axles, pins and other mechanical components used in agricultural equipment.
Oil & Gas Equipment
Selected mechanical components requiring high strength and suitable toughness may be manufactured from 4140 alloy steel.
4140 Alloy Steel Round Bar Heat Treatment
Heat treatment allows 4140 alloy steel to achieve different combinations of hardness, strength and toughness. The appropriate condition depends on the final application and required properties.
Annealing
Annealing can provide a softer material condition and improve machinability for subsequent manufacturing operations.
Normalizing
Normalizing can be used to develop a suitable microstructure and mechanical condition.
Quenching
Quenching is part of the hardening process and is used to increase hardness and strength.
Tempering
Tempering following hardening can provide a practical balance between hardness, strength and toughness.
4140 Alloy Steel Round Bar Export Packing
For international shipments, 4140 Round Bars can be prepared using suitable industrial and seaworthy packaging. Typical export packing may include steel bundles, wooden crates or skids, protective waterproof wrapping and suitable identification labels.
Packaging requirements can be adjusted according to product dimensions, quantity, destination, transportation method and buyer requirements. Proper packing helps protect the material against handling damage, moisture and transportation-related issues.
Super Metal Manufacturing Co. supports export enquiries with commercial and shipping coordination. Buyers can provide the required diameter, length, quantity, material condition, finish and delivery destination to receive an appropriate quotation.
Our export-oriented supply approach is designed for engineering companies, OEMs, distributors, stockists and industrial procurement teams requiring 4140 Alloy Steel Round Bar Exporter from India.
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 |
Why Choose Super Metal Manufacturing Co.?
- Since 1965: Long-standing experience in industrial metal supply.
- Export Experience: Support for international industrial requirements and export documentation.
- Quality & Traceability: Material Test Certificates and batch traceability according to requirements.
- Custom Services: Cut-to-length, customized sizes, special finishes and machining-ready supply.
- Export Packing: Suitable industrial and seaworthy packing for international shipments.
- Inspection Support: Third-party inspection can be coordinated on request.
Certifications & Quality Assurance
Quality documentation can be provided according to the applicable purchase specification and customer requirements.
- Mill Test Certificate
- Chemical Composition Report
- Mechanical Test Report
- Dimensional Inspection
- Third-party Inspection on Request
Export Packing & Shipping
Typical export packing may include steel bundles, wooden crates or skids, waterproof wrapping and protective packaging. Packing can be customized according to destination and transportation requirements.
MOQ, Lead Time & Payment
Minimum Order Quantity (MOQ):
Contact us for exact MOQ based on size, grade and quantity.
Lead Time:
Delivery depends on stock availability, quantity, inspection,
cutting and documentation requirements.
Payment Terms:
Commercial payment terms can be discussed according to order
quantity, destination and buyer requirements.
HS Code & Export Documentation
The applicable HS classification should be confirmed according to the exact product and destination. Export documentation may include Commercial Invoice, Packing List, Bill of Lading or AWB, Mill Test Certificate and Certificate of Origin where applicable.
Typical Applications
4140 Alloy Steel Round Bars are commonly used for shafts, gears, axles, crankshafts, hydraulic piston rods, pins, fasteners, rollers, spindles and other high-strength components in automotive, agriculture, oil & gas, construction, mining and engineering industries.
Export Destinations
Super Metal Manufacturing Co. supports export enquiries from international markets including Europe, the Middle East, North America, Southeast Asia and Africa, subject to commercial and shipping requirements.
Frequently Asked Questions (FAQs)
Who is a 4140 Alloy Steel Round Bar Exporter from India?
Super Metal Manufacturing Co. Since 1965 supplies 4140 Alloy Steel Round Bars for domestic and international industrial requirements. Export supply can include different sizes, finishes, material conditions and customized lengths according to requirements.
What is 4140 Alloy Steel Round Bar?
4140 Alloy Steel Round Bar is a chromium-molybdenum alloy steel product used for high-strength mechanical components such as shafts, gears, axles, pins, spindles and other engineered parts.
What is AISI 4140 Round Bar used for?
AISI 4140 Round Bar is used in automotive, machinery, construction, mining, agriculture, oil and gas and general engineering applications where strength, toughness and hardenability are required.
Is 4140 the same as 42CrMo4?
4140 and 42CrMo4 are commonly compared chromium-molybdenum alloy steels used for similar engineering applications. Exact equivalence should be confirmed against the applicable standard, chemical composition and required mechanical properties.
Is 4140 equivalent to EN19?
4140 and EN19 are commonly used for similar engineering applications, but exact grade equivalence should be verified against the applicable standard and material requirements before substitution.
What sizes can be exported in 4140 Round Bar?
4140 Round Bars can be supplied in different diameters and lengths. The available size range depends on stock, production capability and customer requirements.
Can 4140 Round Bars be heat treated?
Yes. 4140 can be supplied in heat-treated conditions such as annealed, normalized and quenched and tempered, subject to the required specification.
How are 4140 Round Bars packed for export?
Export packing may include steel bundles, wooden crates or skids, waterproof wrapping and protective packaging. Packing requirements can be customized according to destination and transportation conditions.
Can you provide Mill Test Certificates for exported 4140 bars?
Yes. Mill Test Certificates and relevant quality documentation can be provided according to the applicable purchase specification and customer requirements.
How can I get a quotation for 4140 Alloy Steel Round Bar?
Send the required grade, diameter, length, quantity, finish, heat-treatment condition and delivery destination to Super Metal Manufacturing Co. by email or WhatsApp for an availability and quotation enquiry.