42CrMo4 Alloy Steel Round Bars
42CrMo4 is a chromium-molybdenum alloy steel grade widely used in mechanical engineering and industrial manufacturing. The grade is selected for components requiring a suitable balance of tensile strength, toughness, hardness and hardenability.
42CrMo4 Round Bars can be supplied in different material conditions depending on the required mechanical properties and application. Heat treatment can be used to achieve the required combination of hardness, strength and toughness.
Depending on the applicable specification, the material may be supplied in annealed, normalized, hardened and tempered, or quenched and tempered conditions.
Super Metal Manufacturing Co. supplies 42CrMo4 Round Bars for OEMs, engineering companies, machinery manufacturers, fabricators, distributors, stockists and industrial buyers.
42CrMo4 Round Bars Material Specification
| Material Grade | 42CrMo4 |
|---|---|
| Material Number | 1.7225 |
| Specifications | EN 10083-3, EN, DIN |
| Comparable Grades | EN19, AISI 4140, SAE 4140 |
| Range of Diameter | 5mm to 500mm |
| Finish | Bright, Black, Forged, Turned Bright |
| Length | 1000 mm Long To 6000 mm Long |
| Form | Round Bars, Billets, Forgings |
42CrMo4 / 1.7225 / EN19 / AISI 4140 / SAE 4140 Round Bar Grade
| Country | Standard | Grade |
|---|---|---|
| Germany / Europe | EN / DIN | 42CrMo4 / 1.7225 |
| United Kingdom | BS | EN19 / 817M40 |
| USA | AISI / SAE | 4140 |
| Japan | JIS | SCM440 |
| China | GB/T | 42CrMo |
| International | UNS | G41400 |
What is 42CrMo4 Round Bar?
42CrMo4 Round Bar is a chromium-molybdenum alloy steel bar with a circular cross-section. It is commonly used for engineering components subjected to high mechanical loads, repeated stresses and demanding operating conditions.
The material number of 42CrMo4 is commonly identified as 1.7225. It belongs to the family of alloy steels containing chromium and molybdenum, which contribute to its hardenability and mechanical performance.
42CrMo4 Round Bars are suitable for machining operations including turning, drilling, milling and threading. This makes them useful for manufacturing shafts, gears, axles, pins, studs and other precision components.
42CrMo4 Round Bars Chemical Composition
42CrMo4 is a medium-carbon chromium-molybdenum alloy steel. Carbon contributes to hardness and strength, while chromium and molybdenum contribute to hardenability and mechanical performance.
| Element | Typical Range / Requirement |
|---|---|
| Carbon (C) | Approx. 0.38 – 0.45% |
| Silicon (Si) | Approx. 0.10 – 0.40% |
| Manganese (Mn) | Approx. 0.60 – 0.90% |
| Chromium (Cr) | Approx. 0.90 – 1.20% |
| Molybdenum (Mo) | Approx. 0.15 – 0.30% |
| Phosphorus (P) | As per applicable standard |
| Sulfur (S) | As per applicable standard |
The exact chemical composition should always be verified against the applicable material standard and Mill Test Certificate.
42CrMo4 Round Bars Manufacturing Process
Manufacturing 42CrMo4 Round Bars involves controlled processing stages designed to achieve the required dimensions, mechanical properties and surface condition.
1. Raw Material Selection
Suitable alloy steel raw material is selected according to the required 42CrMo4 specification and customer requirements.
2. Heating
The raw material is heated under controlled conditions before hot working. Controlled heating helps maintain consistent processing conditions.
3. Forging or Rolling
Depending on the required size and manufacturing route, the heated steel is forged or rolled to produce the required round bar dimensions.
4. Heat Treatment
Heat treatment can be performed to obtain the required mechanical properties. Common conditions include annealed, normalized, hardened and tempered, and quenched and tempered.
5. Surface Processing
Depending on requirements, the bars can undergo peeling, turning, grinding or other finishing operations to achieve the required surface condition.
6. Straightening & Cutting
Bars can be straightened and supplied in standard or specified cut lengths according to customer requirements.
7. Inspection
Finished material can be inspected for dimensions, surface condition and applicable quality requirements. Material documentation can be supplied according to the purchase order.
Advantages of 42CrMo4 Round Bars
- High Strength: Suitable heat treatment can provide high strength for demanding mechanical applications.
- Good Toughness: Provides a useful combination of strength and toughness.
- Excellent Hardenability: Chromium and molybdenum contribute to good hardenability.
- Good Wear Resistance: Heat-treated material can provide useful resistance to mechanical wear.
- Heat Treatment Capability: Can be supplied in different heat-treated conditions.
- Machining Capability: Suitable material conditions can be machined into engineering components.
- High Load Capability: Suitable for selected components exposed to significant mechanical stresses.
- Wide Industrial Applications: Used across automotive, machinery, construction, mining, agriculture and general engineering.
42CrMo4 Round Bars Applications
42CrMo4 Round Bars are widely used in applications where high strength, toughness and hardenability are required.
Automotive Industry
Used for shafts, axles, gears, crankshafts, spindles, pins and other automotive components.
Industrial Machinery
Used for drive shafts, gears, rollers, pins, axles and other highly loaded machinery components.
Construction Equipment
Used for selected shafts, pins, axles and mechanical components in construction and heavy equipment.
Mining Equipment
Used for selected shafts, pins, gears and mechanical components exposed to heavy loads and repeated stresses.
Oil & Gas Industry
Used for selected mechanical components where suitable strength and toughness are required.
Agricultural Machinery
Used for shafts, gears, axles, pins and other agricultural machinery components.
General Engineering
Used for shafts, studs, pins, spindles, rollers and other machined engineering components.
42CrMo4 Round Bars Heat Treatment
Heat treatment allows 42CrMo4 Round Bars to achieve different combinations of hardness, strength and toughness according to the intended application.
Annealing
Annealing can produce a softer material condition and support machining operations.
Normalizing
Normalizing can be used to develop a suitable microstructure and mechanical condition.
Quenching
Quenching is used as part of the hardening process to increase hardness and strength.
Tempering
Tempering after hardening can provide a suitable balance between strength, hardness and toughness.
42CrMo4 Round Bars Surface Finishes
- Bright Finish – improved surface and dimensional control.
- Black Finish – commonly supplied hot-worked condition.
- Forged Finish – suitable for forged requirements.
- Turned Bright Finish – machined surface with improved dimensional control.
42CrMo4 Round Bars in Custom Sizes
Industrial customers often require specific diameters and lengths according to component drawings and machining requirements. Super Metal Manufacturing Co. supports customized 42CrMo4 Round Bar requirements subject to availability and specification.
Customers can provide technical drawings, purchase specifications, required diameter, length, quantity, surface finish and heat treatment requirements for quotation.
42CrMo4 Round Bars Quality & Testing
Quality and material traceability are important when sourcing alloy steel for critical engineering components. Applicable inspection documentation can be supplied according to customer requirements.
- Mill Test Certificate (MTC)
- Chemical Composition Report
- Mechanical Test Report
- Inspection Report
- Third-Party Inspection on Request
- Material Traceability Documentation
42CrMo4 Round Bars Manufacturer, Stockist & Exporter
Super Metal Manufacturing Co. supplies 42CrMo4 Round Bars for domestic and international industrial requirements. Since 1965, the company has been involved in supplying metal products to engineering and industrial customers.
We support requirements for standard sizes, customized lengths, different finishes and specified material conditions.
For export orders, industrial packing can be arranged according to product type and destination. Packing may include steel bundles, wooden crates, skids and waterproof protective wrapping.
Why Choose Super Metal Manufacturing Co. for 42CrMo4 Round Bars?
- Since 1965: Experienced metal product supplier.
- Product Expertise: Support for alloy steel round bar requirements.
- Multiple Sizes: Different diameters and lengths subject to availability.
- Customized Supply: Specific lengths, finishes and heat-treatment conditions.
- Quality Documentation: MTC and inspection documents according to requirements.
- Export Support: Packing, documentation and shipment coordination.
42CrMo4 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 |
Export Packing & Shipping
42CrMo4 Round Bars can be packed according to the destination, transportation method and product requirements. Steel bundles, wooden crates, skids and protective wrapping can be arranged.
Export documentation can include Commercial Invoice, Packing List, Bill of Lading or AWB, Mill Test Certificate and Certificate of Origin where applicable.
MOQ, Lead Time & Payment
Minimum Order Quantity: MOQ depends on size, quantity, stock availability and customized requirements.
Lead Time: Delivery time depends on stock, quantity, cutting, inspection, packing and manufacturing requirements.
Payment Terms: Payment terms can be discussed according to order quantity, destination and commercial requirements.
42CrMo4 Round Bars Export Destinations
Super Metal Manufacturing Co. supports 42CrMo4 Round Bars enquiries from India and international markets including Europe, the Middle East, North America, Southeast Asia, Africa and other global destinations.
Frequently Asked Questions About 42CrMo4 Round Bars
What are 42CrMo4 Round Bars?
42CrMo4 Round Bars are chromium-molybdenum alloy steel bars with a circular cross-section. They are commonly used for highly stressed mechanical components requiring suitable strength, toughness and hardenability.
What is the material number of 42CrMo4?
The commonly associated material number of 42CrMo4 is 1.7225. The applicable specification should always be confirmed against the purchase requirement and material certificate.
What are 42CrMo4 Round Bars used for?
42CrMo4 Round Bars are commonly used for shafts, gears, axles, crankshafts, pins, studs, bolts, spindles, rollers and other mechanical components in automotive, machinery, construction, mining, agriculture and general engineering industries.
Is 42CrMo4 the same as EN19?
42CrMo4 and EN19 are commonly compared for similar engineering applications. However, exact equivalence should be verified against the applicable standard, chemical composition, mechanical properties and material certificate before substitution.
Is 42CrMo4 equivalent to AISI 4140?
42CrMo4 and AISI 4140 are commonly considered comparable chromium-molybdenum alloy steels. However, they should not automatically be considered identical for every specification. The applicable standard and required properties should be checked.
What sizes are available in 42CrMo4 Round Bars?
42CrMo4 Round Bars can be supplied in different diameters and lengths depending on stock and production availability. The listed diameter range is 5 mm to 500 mm and lengths can range from 1000 mm to 6000 mm according to requirements.
Can 42CrMo4 Round Bars be heat treated?
Yes. 42CrMo4 Round Bars can be supplied in different heat-treated conditions including annealed, normalized, hardened and tempered, and quenched and tempered conditions according to applicable requirements.
What surface finishes are available?
42CrMo4 Round Bars can be supplied with bright, black, forged and turned bright finishes depending on product availability and customer requirements.
Do you provide an MTC for 42CrMo4 Round Bars?
Yes. A Mill Test Certificate can be supplied according to the applicable purchase requirement. Additional inspection documents and third-party inspection can also be coordinated when required.
How can I buy 42CrMo4 Round Bars from India?
Send the required diameter, length, quantity, finish, heat-treatment condition, applicable standard and delivery destination to Super Metal Manufacturing Co. by email or WhatsApp. Our team can check availability and provide quotation information.