As a global 4140 Hex Bars Exporter, Super Metal Manufacturing Co. supplies its products to customers across the Middle East, Europe, Africa, Asia and other international markets. Our logistics and supply chain capabilities support safe and timely delivery of alloy steel hex bars according to agreed commercial and shipping requirements.
We provide 4140 Hex Bars for manufacturers, engineering companies, machinery manufacturers, automotive component manufacturers, distributors and industrial buyers. Whether the requirement is for standard sizes, customized dimensions, heat-treated material or cut-to-length bars, our team works according to the technical requirements provided by the customer.
4140 Hex Bars Applications
4140 Hex Bars are widely used in engineering and industrial applications where high strength, toughness and resistance to mechanical stress are important.
- Automotive components
- Machine components
- Machinery manufacturing
- Fasteners
- Bolts and studs
- Gears and shafts
- Hydraulic components
- Oil and gas equipment
- Construction machinery
- Mining equipment
- Power transmission components
- General engineering components
4140 Hex Bars Heat Treatment
4140 alloy steel is suitable for various 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.
Heat treatment can be used to achieve the required balance of hardness, strength and toughness. The appropriate heat-treatment condition should be selected according to the applicable material specification and intended application.
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 Mechanical Properties
The mechanical properties of 4140 Hex Bars depend on the heat-treatment condition, section size and applicable material standard. Heat treatment can be used to achieve the required strength, hardness and toughness for specific applications.
| Property | Condition |
|---|---|
| Tensile Strength | Depending on heat-treatment condition |
| Yield Strength | Depending on section size and condition |
| Elongation | Depending on material condition |
| Hardness | Depending on heat treatment |
| Impact Toughness | Depending on material condition |
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 requirements and stock availability. Customized dimensions, cut-to-length services and specific surface finishes can be discussed for project requirements.
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
Export Packing & Shipping
Typical export packing includes steel bundles, wooden crates or skids, waterproof wrapping and fumigated wood where required. We ship through suitable major ports and can handle CIF, FOB or EXW terms depending on buyer preference and destination.
MOQ, Lead Time & Payment
Minimum Order Quantity (MOQ): Contact us for exact MOQ per size and grade.
Lead Time: In-stock items: 1–3 weeks, subject to inspection and documentation. Mill-direct and custom production: 3–8 weeks depending on order size and specifications.
Payment Terms: Contact us to choose suitable payment terms.
HS Code & Export Documentation
HS classification can vary according to the exact product form and destination-country customs requirements. Documents supplied can include Commercial Invoice, Packing List, Bill of Lading / AWB, Mill Test Certificate and Certificate of Origin (COO), where required.
Export Destinations
Super Metal Manufacturing Co. supplies 4140 Hex Bars to customers across Europe, the Middle East, Africa, Asia and North America. We support export requirements based on product dimensions, quantity, inspection requirements, packaging and agreed delivery terms.
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 material standard.
Are 4140 Hex Bars available from stock?
Yes. Stock availability depends on the required size, length, quantity, surface finish and heat-treatment condition. Contact us with your exact requirements for current availability.
Can 4140 Hex Bars be heat treated?
Yes. 4140 Hex Bars can be supplied in suitable heat-treated conditions including annealed, normalized, hardened and tempered and quenched and tempered conditions.
What are 4140 Hex Bars used for?
4140 Hex Bars are commonly used for automotive components, fasteners, machinery parts, shafts, gears, hydraulic components, construction equipment, mining equipment and general engineering applications.
Can you supply customized 4140 Hex Bar sizes?
Yes. Customized sizes, lengths, surface finishes and heat-treatment conditions can be discussed according to customer drawings and technical specifications.
How can I request a quotation for 4140 Hex Bars?
You can share the required grade, across-flat size, length, quantity, material condition and delivery location via email, WhatsApp or our Request a Quote form.
What details are required for a quotation?
Please provide the required grade, hex size, length, quantity, applicable standard, heat-treatment condition and delivery location.
What payment terms do you offer?
Payment terms can be discussed according to order size, buyer requirements and agreed commercial conditions. Bank transfer and LC arrangements can be considered.
How are 4140 Hex Bars packed for export?
We use suitable export packing such as steel bundles, wooden crates or skids and waterproof wrapping to help protect the material during transportation.
Do you offer bulk order discounts?
Yes, competitive pricing can be offered for bulk quantities, repeat buyers and long-term supply requirements.