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Item #:
156584877
4140 Alloy Steel Round Bar, Unpolished (Mill) Finish, Annealed, Cold Finish, ASTM A108, 0.6875" Diameter, 12" Length, OnlineMetals
Item #:
156584877
AUD 176
Price Details
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Imported from USA store
QTY:
Order now and get it around Monday, August 24
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4140 alloy steel is known for strength, resistance to fracturing, abrasion, and impact in high stress applications.
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What Stands Out
Durable Material
Made from 4140 alloy steel, ensuring high strength and toughness suitable for heavy-duty applications and stress resistance.
Precision Finish
Cold finished for improved dimensional accuracy and surface quality, making it ideal for machining and fabrication projects.
Versatile Use
Available in various sizes, this round bar is perfect for custom manufacturing, automotive components, and industrial applications, providing exceptional value.
Product Details
| Item Diameter | 0.69 Inches (1.8 cm) |
| Item Thickness | 0.69 Inches (1.8 cm) |
| Item Weight | 1.3 Pounds (590 grams) |
| Color | Silver |
| Item Shape | Round |
| Item Form | Rod |
| Material | Alloy Steel 4140/4142 |
| Grade Rating | 4140 |
| Specification Met | Astm A108 |
| Brand Name | Online Metals |
| Number of Items | 1 |
| Model Number | 120591 |
| Part Number | 15487 |
| Unit Count | 1.0 Feet |
| Manufacturer | OnlineMetals |
| Brand | Online Metals |
| Shape | Round |
Who Should Buy?
-
Machinists
Ideal for machinists requiring durable materials for precision parts due to its excellent machinability and hardness.
-
Manufacturing
Best suited for manufacturing applications where strength and toughness are essential in structural components.
-
Fabricators
Great choice for fabricators needing reliable material for welding and forging due to its excellent weldability.
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Outdoor Use
Not suitable for outdoor applications without protective coatings due to corrosion susceptibility of unpolished steel.
Product Description
4140 Alloy Steel Round Bar, Unpolished (Mill) Finish, Annealed, Cold Finish, ASTM A108, 0.6875" Diameter, 12" Length, OnlineMetals
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Customer Questions & Answers
-
Question:
What is the diameter and length of the rod?
Answer: The rod has a diameter of 0.6875 inches and a length of 36 inches. -
Question:
Can this alloy steel be used in various applications?
Answer: Yes, 4140 alloy steel is commonly used in gears, spindles, fixtures, and heavy-duty applications. -
Question:
Is this product suitable for high-stress conditions?
Answer: Absolutely, 4140 alloy steel is known for its strength and resistance to fracturing in high-stress environments.
Online Metals Rods 120591 Editorial Review
The 4140 Alloy Steel Round Bar has garnered positive feedback from customers who appreciate its quality and versatility for various projects. Users with hands-on experience in metalworking have noted that the rod is excellent for fabricating small tools and fixtures, as it maintains good quality even after machining. Many reviewers were impressed by its application in specific tasks, such as creating leveling feet for a metal lathe and supporting decorative bird feeders, showcasing the product's ability to meet diverse needs. While there were minor complaints regarding slight imperfections, such as a small bend or slightly under-diameter measurements, these did not seem to significantly affect overall satisfaction. Customers felt that the material was durable and machined well, aligning closely with advertised descriptions, which enhances confidence in the product's utility. Overall, the reception of the 4140 Alloy Steel Round Bar is notably favorable, emphasizing the balance between quality and performance for a variety of applications in metalworking and crafting. **
Customer Reviews & Ratings
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Pros
- Excellent quality and durability
- Versatile for various projects
- Good machining properties
- Close adherence to advertised specifications
Cons
- Minor imperfections (slight bends)
Platform Trust & Buyer Confidence
CJ
Chris
Verified buyer
“Promt delivery. Seems like a good product.”
22 July 2026 · via Trustpilot
SM
Scott
Verified buyer
“It was the best service ever received by any company from my online shopping experience in the last 10yrs”
11 July 2026 · via Trustpilot
TD
Terri
Verified buyer
“so easy to order delivery was way earlier than i expected”
3 July 2026 · via Trustpilot
GC
Gavin
Verified buyer
“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”
21-Jul-26 · via Trustpilot
J
Jeannie
Verified buyer
“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”
17-Jul-26 · via Trustpilot
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AUD 176
Order now and get it around Monday, August 24
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Made from cold finished and annealed 4140 alloy steel.
- Features high strength due to chromium and molybdenum content.
- Can be heat treated for enhanced hardness.
- Ideal for high-stress applications, including gears and shafts.
- Meets ASTM A108 specifications for reliable quality.
- Offers excellent machinability and toughness.
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