Super Metal Manufacturing Co. manufactures 4140 Hex Bars for customers requiring reliable alloy steel products for demanding industrial applications. Our production approach emphasizes dimensional accuracy, material quality, surface condition and compliance with customer specifications.
We can supply 4140 Hex Bars in different sizes and lengths, including customized and cut-to-length requirements. Depending on the application, bars can be supplied in suitable surface finishes and heat-treated conditions. Our team also supports customers with technical information required for selecting the appropriate grade and supply condition.
As a professional 4140 Hex Bars Manufacturer, we serve engineering companies, automotive manufacturers, machinery manufacturers, industrial component manufacturers, distributors and other buyers requiring high-strength alloy steel hexagonal bars.
4140 Hex Bars Chemical Composition
| Element | Composition |
|---|---|
| Carbon (C) | 0.38 – 0.43% |
| Silicon (Si) | 0.15 – 0.35% |
| Manganese (Mn) | 0.75 – 1.00% |
| Chromium (Cr) | 0.80 – 1.10% |
| Molybdenum (Mo) | 0.15 – 0.25% |
| Phosphorus (P) | 0.035% Max |
| Sulfur (S) | 0.040% Max |
4140 Hex Bars Heat Treatment
4140 alloy steel is suitable for several heat-treatment processes. Depending on the required mechanical properties, 4140 Hex Bars can be supplied in annealed, normalized, hardened and tempered or quenched and tempered conditions.
Proper heat treatment can improve hardness, tensile strength, yield strength and toughness. The selected treatment depends on the required application, section size and applicable specification.
4140 Hex Bars Quality Assurance
Quality inspection is carried out at different stages of production to maintain consistency and dimensional accuracy. Depending on customer requirements, inspection can include chemical analysis, dimensional inspection, hardness testing and mechanical testing.
Certifications & Quality Assurance
We maintain robust quality processes and can provide the following documents with shipments:
- Mill Test Certificate
- Quality Management: ISO certificate
- Third-party inspection reports (TPI) available on request
- Chemical Composition Report
- Mechanical Test Report
- Dimensional Inspection Report
Alloy Steel 4140 Hex Bars Dimensions Standard
| Across Flats | Length | Surface | Manufacturing Condition |
|---|---|---|---|
| As per requirement | 1000 mm – 6000 mm | Bright / Black / Peeled / Ground | Hot Rolled / Cold Drawn / Machined |
| Custom Sizes | Cut-to-Length Available | As per customer requirement | As per specification |
4140 Hex Bars can be supplied in different across-flat dimensions and lengths according to customer specifications and stock availability. Customized sizes, cut-to-length services and special surface finishes can also be discussed for industrial and project requirements.
Export Packing & Shipping
Typical export packing includes steel bundles, wooden crates or skids, waterproof wrapping and suitable protection against handling and transportation conditions. Packing can be customized according to the destination, shipping method and buyer requirements.
MOQ, Lead Time & Payment
Minimum Order Quantity (MOQ): Contact us for exact MOQ based on size and quantity.
Lead Time: In-stock material is generally available for prompt dispatch, while customized production depends on specifications and order quantity.
Payment Terms: Contact us to discuss suitable payment terms.
HS Code & Export Documentation
HS classification can vary according to the exact product form and destination-country customs requirements. Export documentation can include Commercial Invoice, Packing List, Bill of Lading / AWB, Mill Test Certificate and Certificate of Origin where required.
Typical Applications
4140 Hex Bars are commonly used in automotive, machinery, construction, mining, oil and gas, power transmission and general engineering industries for components requiring high strength and toughness.
Export Markets
Super Metal Manufacturing Co. supports domestic and international requirements for 4140 Hex Bars. We can supply products for customers across the Middle East, Europe, Africa, Asia, North America and other global markets according to product specifications and shipping requirements.
Frequently Asked Questions
What are 4140 Hex Bars?
4140 Hex Bars are hexagonal alloy steel bars manufactured from AISI 4140 chromium-molybdenum steel. They are used for high-strength engineering, automotive, machinery and industrial applications.
What is the equivalent grade of 4140 Hex Bars?
AISI 4140 is identified as UNS G41400 and is commonly compared with 42CrMo4, 1.7225, EN19 and SCM440 depending on the applicable standard.
Do you manufacture 4140 Hex Bars according to custom sizes?
Yes. Customized across-flat dimensions, lengths, surface finishes and heat-treatment conditions can be supplied according to customer drawings and technical specifications.
Can 4140 Hex Bars be heat treated?
Yes. 4140 Hex Bars are suitable for annealing, normalizing, hardening and tempering and quenching and tempering depending on the required mechanical properties.
What are 4140 Hex Bars used for?
They are commonly used for automotive components, fasteners, gears, shafts, machinery parts, hydraulic components, construction equipment, mining equipment and general engineering applications.
What surface finishes are available?
4140 Hex Bars can be supplied with black, bright, peeled, ground or machined surfaces depending on the required specification and application.
How can I request a quotation?
You can share the required grade, hex size, length, quantity, material condition and delivery location through email, WhatsApp or our Request a Quote form.
Do you provide quality certificates?
Yes. Mill Test Certificates and other inspection documentation can be provided according to customer requirements.
How are 4140 Hex Bars packed?
We use suitable steel bundles, wooden crates or skids and waterproof wrapping for safe handling and transportation. Export packing can be customized according to destination requirements.
Do you supply bulk quantities?
Yes. We support bulk industrial requirements, repeat orders and project-based quantities subject to size, specification and availability.