650mm Hot Rolled Alloy Steel Bar
650mm Hot Rolled Alloy Steel Bar
Note: MOQ, pricing, lead time and payment terms may vary depending on product grade, specifications, order quantity and processing requirements. Please contact QueenMetal (ding@queenmetalgroup.com) for a product-specific quotation.
Product Introduction
650mm Hot Rolled Alloy Steel Bar is a large-diameter alloy steel product designed for heavy-duty industrial applications requiring high strength, toughness, and reliable mechanical performance. Manufactured through a hot rolling process, it is suitable for further machining, heat treatment, and fabrication according to the selected alloy grade. The bar can be supplied in different alloy steel grades, lengths, surface conditions, and heat treatment conditions to meet specific project requirements. It is commonly used for large shafts, heavy machinery components, gears, rollers, and other industrial parts. Customized dimensions, tolerances, heat treatment, and machining services are available according to customer specifications.
Specifications
| Item | Specification |
|---|---|
| Product Type | Hot Rolled Alloy Steel Bar |
| Nominal Diameter | 650 mm |
| Material | Alloy Steel |
| Common Grades | 4140 / 4145 / 4130 / 4340 / 8620 / Other grades available upon request |
| Standard | ASTM / AISI / SAE / DIN / EN / JIS / Other applicable standards |
| Manufacturing Process | Hot Rolled |
| Diameter | 650 mm / Customized |
| Length | Customized according to requirements |
| Surface Finish | Hot Rolled / Black / Peeled / Turned / Ground |
| Heat Treatment | Annealed / Normalized / Quenched & Tempered / Customized |
| Tolerance | According to applicable standards or customer requirements |
| Processing | Cutting / Turning / Grinding / Machining / Customized |
| Inspection | Chemical Analysis / Mechanical Testing / Dimensional Inspection / Surface Inspection |
| Customization | Grade / Diameter / Length / Tolerance / Heat Treatment / Surface / Machining |
Need a Customized Solution?
If you cannot find a 650mm hot rolled alloy steel bar for your project, please contact Queen Metal. We provide customized solutions based on your required grade, dimensions, standard, surface finish, end treatment, and application.
Send us your specifications, technical requirements, drawings, or parameter files, and our team will provide a suitable quotation and supply solution.
Email: ding@queenmetal.com
Applications & Industries
| Industry | Typical Applications |
|---|---|
| Heavy Machinery | Large shafts, rollers, machine components and structural parts |
| Engineering Equipment | Heavy-duty mechanical components and load-bearing parts |
| Mining Equipment | Shafts, gears, crusher components and heavy machinery |
| Power Generation | Large shafts, turbine-related components and mechanical parts |
| Oil & Gas | High-strength shafts, equipment components and mechanical parts |
| Construction Equipment | Heavy-duty machinery and structural components |
| Industrial Manufacturing | Gears, axles, pins, shafts and fabricated components |
| General Engineering | Large mechanical components requiring high strength and toughness |
Quality Assurance & Testing
| Inspection / Testing | Details |
|---|---|
| Chemical Composition | Verification of alloy steel grade and chemical composition |
| Mechanical Testing | Tensile Strength / Yield Strength / Elongation according to applicable standards |
| Hardness Testing | Available according to material condition and order requirements |
| Dimensional Inspection | Diameter / Length / Straightness / Tolerance |
| Surface Inspection | Surface condition and visible defects |
| Ultrasonic Testing | UT available according to product and project requirements |
| Heat Treatment Inspection | Verification of specified heat treatment condition |
| MTC | Material Test Certificate available according to order requirements |
| Third-Party Inspection | Available upon request |
Packaging & Logistics
| Item | Details |
|---|---|
| Packaging Standard | Export-standard steel bar packaging |
| Surface Protection | Waterproof paper / Plastic protection where applicable |
| Bundling | Steel strapping according to bar size and transportation requirements |
| Protective Packaging | Suitable protective materials according to product dimensions and shipping requirements |
| Wooden Packaging | Wooden cases available according to product size and shipping requirements |
| Shipping Method | Container / Bulk shipment |
| Transportation Protection | Suitable protection for long-distance ocean transportation |
| MOQ | According to grade, diameter, length and order requirements |
| Lead Time | Confirmed according to material availability, processing and order quantity |
| Customized Logistics | Packaging and shipping arrangements available according to customer requirements |
FAQS
1. What is a 650mm Hot Rolled Alloy Steel Bar?
A 650mm Hot Rolled Alloy Steel Bar is a large-diameter alloy steel bar with a nominal diameter of 650 mm, manufactured through a hot rolling process for heavy-duty industrial applications.
2. What grades are available for 650mm alloy steel bars?
Common alloy steel grades include 4140, 4145, 4130, 4340 and 8620. Other grades can also be supplied according to applicable standards and customer requirements.
3. What is 650mm alloy steel bar used for?
It is commonly used for large shafts, rollers, gears, heavy machinery components, mining equipment, power-generation equipment and other high-load industrial components.
4. Can the 650mm alloy steel bar be customized?
Yes. Queen Metal can provide customized grades, lengths, tolerances, heat treatment, surface conditions and machining according to customer drawings or technical specifications.
5. Is machining available for the 650mm alloy steel bar?
Yes. Cutting, turning, grinding and other machining services can be arranged according to the selected alloy grade, material condition and final application requirements.
Request a Quote Now
Tell us your requirements, including product type, specifications and quantity. Our professional team will provide a fast response and customized steel solutions.
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