4140 Round Bar Exporter from India
Super Metal Manufacturing Co. Since 1965 is a Mumbai-based supplier and exporter of alloy steel products, including 4140 Round Bars. We serve industrial buyers requiring alloy steel bars for machining, forging, automotive components, heavy machinery, construction equipment, agricultural machinery and general engineering applications.
Our 4140 Round Bar Exporter services are designed for customers looking for consistent material supply, customized sizes, cut-to-length bars, suitable surface finishes and export packing. International buyers can specify the required diameter, length, quantity, material condition, inspection requirements and destination for quotation.
4140 Round Bars are used extensively for mechanical components that experience high loads, impact, torsion or repeated stresses. The chromium-molybdenum alloy composition supports hardenability and allows the steel to be heat treated to achieve different combinations of strength and toughness.
What is 4140 Round Bar?
4140 Round Bar is a solid circular alloy steel bar manufactured from chromium-molybdenum steel. It is commonly identified as AISI 4140 or SAE 4140 and is used where engineering components require high tensile strength, toughness and good hardenability.
The round cross-section makes the product suitable for turning, machining, drilling, grinding, threading and other manufacturing operations. 4140 Round Bars are commonly used to manufacture shafts, gears, axles, pins, spindles, crankshafts, rollers, studs and other high-strength components.
Why Choose 4140 Round Bar for Industrial Applications?
4140 is a versatile low-alloy engineering steel used in demanding mechanical applications. Its chromium and molybdenum additions contribute to hardenability, while suitable heat treatment can provide a useful balance of hardness, strength and toughness.
The grade is also available in several supply conditions, allowing customers to select material appropriate for machining, fabrication or final component production. Industry sources commonly describe 4140 as a chromium-molybdenum engineering steel with strong hardenability and heat-treatment capability.
4140 Round Bar Manufacturing Process
The manufacturing route for 4140 Round Bars depends on the required diameter, length, surface finish and material condition. Typical processing involves alloy steel selection, controlled heating, hot rolling or forging, heat treatment, straightening, cutting, surface finishing and inspection.
Raw Material Selection
Appropriate alloy steel raw material is selected according to the 4140 grade and applicable purchase specification. Heat identification and material traceability can be maintained according to customer requirements.
Heating
The material is heated under controlled conditions before hot working. Proper heating supports uniform deformation and helps maintain suitable metallurgical characteristics.
Rolling or Forging
4140 Round Bars can be produced through rolling or forging depending on the required size, application and production route. Forged bars are suitable where forged stock is required for demanding engineering components.
Heat Treatment
Depending on requirements, 4140 can be supplied annealed, normalized, hardened and tempered or quenched and tempered. Heat treatment is selected according to the required hardness and mechanical properties.
Surface Finishing
Bars may be supplied with black, bright, turned, peeled, ground or machined surfaces depending on the required dimensional accuracy and application.
Inspection
Inspection can include chemical analysis, dimensional inspection, surface inspection and mechanical testing according to the applicable specification and customer requirements.
4140 Round Bar Material Specification
| Grade | AISI 4140 / SAE 4140 |
|---|---|
| Material Type | Chromium Molybdenum Alloy Steel |
| Material Number | 1.7225 / 42CrMo4 |
| UNS | G41400 |
| Standards | ASTM, ASME, AISI, SAE, EN, DIN, JIS, BS |
| Diameter | 5 mm to 500 mm |
| Length | 1000 mm to 6000 mm |
| Finish | Black, Bright, Turned, Peeled, Ground, Forged |
| Form | Round Bar, Forged Bar, Bright Bar |
| Supply Condition | Annealed, Normalized, Hardened & Tempered, Quenched & Tempered |
AISI 4140 / SAE 4140 / EN19 / 42CrMo4 Round Bar 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 Round Bar Chemical Composition
The alloying elements in 4140 contribute to its engineering performance. Carbon contributes to strength and hardness, while chromium and molybdenum improve hardenability. Exact composition must be confirmed against the applicable specification and the Mill Test Certificate supplied with the material.
| 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 |
Advantages of 4140 Round Bars
- High Strength: Suitable for highly loaded mechanical components.
- Good Toughness: Provides a useful combination of strength and toughness when appropriately heat treated.
- Excellent Hardenability: Chromium and molybdenum contribute to hardenability.
- Good Wear Resistance: Heat-treated material can provide useful resistance to mechanical wear.
- Heat Treatment Capability: Can be supplied in different conditions according to application.
- Good Machinability: Suitable material conditions can be machined into precision parts.
- Wide Application Range: Used across automotive, machinery, construction, mining, agriculture and general engineering.
4140 Round Bar Applications
4140 Round Bars are widely used for manufacturing components where strength, toughness and hardenability are important.
Automotive Components
Applications include axles, shafts, gears, crankshafts, spindles, pins and other high-strength automotive components.
Heavy Machinery
4140 is used for drive shafts, gears, rollers, axles, pins, spindles and other highly loaded machinery components.
Construction Equipment
The material can be used for pins, shafts, axles, brackets and mechanical components used in construction machinery.
Mining Equipment
4140 Round Bars are suitable for selected shafts, gears, pins, rollers and other mechanical components subjected to demanding service conditions.
Agricultural Machinery
Applications include shafts, gears, axles, pins and other mechanical components used in agricultural equipment.
Oil & Gas Equipment
Selected mechanical components requiring high strength and suitable toughness can be manufactured from 4140 alloy steel.
4140 Round Bar Heat Treatment
4140 can be heat treated to obtain different combinations of strength, hardness and toughness. The selected heat-treatment condition depends on the final component requirements.
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 before further processing.
Quenching
Quenching is part of the hardening process and is used to increase hardness and strength.
Tempering
Tempering after hardening can provide a practical balance between hardness, strength and toughness.
4140 Round Bar Export Packing
For international shipments, 4140 Round Bars can be packed using suitable industrial and seaworthy packaging. Depending on the product size and destination, packing may include steel bundles, wooden crates or skids, waterproof wrapping and protective packaging.
Export packing can be customized according to the customer's transportation method, destination, product dimensions and handling requirements. Proper packaging helps protect the material during loading, transit and unloading.
4140 Round Bar Exporter from Mumbai, India
Super Metal Manufacturing Co. is located at 7, Kika Street, Gulalwadi, 2/1, Kikabhai Mansion, Mumbai - 400004, India. Our location enables us to support industrial customers requiring alloy steel products from Mumbai, India.
For export enquiries, buyers can share the required diameter, length, quantity, finish, heat-treatment condition, inspection requirements and delivery destination. Our team can then evaluate the requirement and provide a suitable commercial quotation.
Quality Documentation for Export Orders
4140 Round Bar export orders can be supplied with relevant quality and commercial documentation according to the purchase requirement. Documentation may include Mill Test Certificate, chemical analysis, mechanical test report, dimensional inspection report, commercial invoice, packing list and Certificate of Origin where applicable.
Certifications & Quality Assurance
Quality documentation can be provided according to the applicable material specification and customer requirements. Material traceability and inspection requirements can be discussed before order confirmation.
- Mill Test Certificate
- Chemical Composition Report
- Mechanical Test Report
- Dimensional Inspection
- Third-party Inspection on Request
Export Packing & Shipping
4140 Round Bars can be bundled and protected for international transportation. Wooden crates, skids, waterproof wrapping and protective packaging can be arranged according to destination and customer requirements.
MOQ, Lead Time & Payment
Minimum Order Quantity (MOQ):
Contact us for MOQ based on grade, diameter, quantity and
availability.
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 form, customs requirements 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 Round Bars are commonly used for shafts, gears, axles, crankshafts, hydraulic components, pins, rollers, spindles, studs, fasteners and other high-strength engineering components.
Export Destinations
Super Metal Manufacturing Co. supports international export enquiries for 4140 Round Bars from markets across the Middle East, Europe, North America, Southeast Asia, Africa and other global industrial markets, subject to commercial and shipping requirements.
Frequently Asked Questions (FAQs)
Who is a 4140 Round Bar Exporter from India?
Super Metal Manufacturing Co. Since 1965 supplies and exports 4140 Alloy Steel Round Bars for industrial and engineering applications. Different diameters, lengths, finishes and material conditions can be supplied according to requirements.
What is 4140 Round Bar?
4140 Round Bar is a chromium-molybdenum alloy steel bar commonly identified as AISI 4140 or SAE 4140. It is used for high-strength mechanical components requiring strength, toughness and hardenability.
What is AISI 4140 Round Bar used for?
AISI 4140 Round Bar is used for shafts, gears, axles, pins, crankshafts, spindles, rollers and other mechanical components in automotive, machinery, construction, mining, agriculture and general engineering industries.
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 verified against the applicable standard, chemical composition and mechanical requirements.
Is 4140 equivalent to EN19?
4140 and EN19 are commonly used for similar engineering applications, but exact equivalence should be verified against the applicable standard and material requirements before substitution.
What sizes are available in 4140 Round Bars?
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 Round Bars can be supplied in suitable heat-treated conditions such as annealed, normalized, hardened and tempered, or quenched and tempered, depending on 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 can be customized according to destination, product dimensions and transportation requirements.
Can you provide Mill Test Certificates for 4140 Round 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 Round Bar Export?
Send the required diameter, length, quantity, finish, heat-treatment condition, inspection requirements and delivery destination to Super Metal Manufacturing Co. by email or WhatsApp for an availability and quotation enquiry.