- Home Page /
- Industrial Supplies /
- Raw Materials /
- Metals & Alloys /
- Steel /
- Rods /
- 4140 Alloy Steel Round Bar, Unpolished Mill F...
0 ratings
Item #:
215343764
4140 Alloy Steel Round Bar, Unpolished Mill Finish, Annealed, Cold Finish, ASTM A108, 1.5 Diameter, 72 Length, OnlineMetals
Item #:
215343764
WST 908
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Wednesday, September 02
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
4140 alloy steel round rod is known for strength and resistance to fracturing, abrasion, and impact in high-stress applications.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Quality Material
Made from 4140 alloy steel, this round bar offers exceptional strength and durability, suited for demanding applications in machinery and automotive industries.
Precision Cold Finish
The cold finish provides tighter tolerances and a superior surface finish, ensuring improved performance in various machining processes compared to standard bars.
Custom Length Options
Available in a convenient 72-inch length, this product can be tailored for various projects, reducing waste and maximizing efficiency for customers.
Product Details
| Item Diameter | 1.5 Inches (3.8 cm) |
| Item Thickness | 1.5 Inches (3.8 cm) |
| Item Weight | 36.12 Pounds (16.38 kg) |
| 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 | 120623 |
| Part Number | 15490 |
| Unit Count | 6.0 Feet |
| Manufacturer | Online Metals |
| Brand | Online Metals |
| Shape | Round |
Who Should Buy?
-
Machinists
Ideal for machinists needing strong, durable material for manufacturing custom parts or components.
-
DIY Enthusiasts
Perfect for DIY projects requiring reliable steel for fabrication, welding, or structural supports.
-
Engineers
Beneficial for engineers designing components that demand high strength and fatigue resistance under various loads.
-
Corrosive Environments
Not suitable for applications in highly corrosive environments without proper coating or treatment.
Product Description
4140 Alloy Steel Round Bar, Unpolished Mill Finish, Annealed, Cold Finish, ASTM A108, 1.5 Diameter, 72 Length, OnlineMetals
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What are the key properties of 4140 alloy steel?
Answer: 4140 alloy steel is known for its high strength, toughness, machinability, and resistance to fracturing and wear. -
Question:
Can 4140 alloy steel be heat treated?
Answer: Yes, it can be heat treated to achieve higher hardness. -
Question:
What applications is 4140 alloy steel commonly used in?
Answer: It is commonly used in gears, shafts, spindles, fixtures, bolts, valves, sprockets, pistons, and collars for heavy-duty applications.
OnlineMetals Rods 120623 Editorial Review
**** The 4140 Alloy Steel Round Bar has garnered a positive reception among customers, primarily for its quality and versatility in various applications. Users Consistently praise the material's robustness, with many noting its suitability for crafting tools and machinery components. Several reviews highlight its effective performance in projects ranging from building bird feeder supports to customizing metal lathe leveling feet, indicating its usefulness for both hobbyists and professionals. Customers have remarked on the precise dimensions of the bar, noting that it closely matched advertised specifications and had a smooth finish that enhances its usability in fabrication processes. The product's ability to machine well with high-speed tooling was particularly mentioned, making it a reliable choice for those requiring precise fittings. Moreover, instances of quick resolution of minor shipping errors have been recorded, reflecting positively on the customer service reputation of the supplier. While most feedback is affirmative, a minor downside mentioned includes slight imperfections such as minor bends in some bars, which, while not a dealbreaker, may affect use in high-precision applications. Overall, the 4140 Alloy Steel Round Bar is viewed as an excellent choice for various metalworking needs, combining quality material with satisfactory machining properties. **
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- High-quality alloy steel suitable for various applications.
- Consistent and precise measurements, matching advertisement.
- Smooth finish enhances usability and machining performance.
Cons
- Occasional minor imperfections, such as slight bends in the material.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
WST 908
Order now and get it around Wednesday, September 02
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.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- High-strength 4140 alloy steel with chromium and molybdenum.
- Cold finished and annealed for enhanced formability and toughness.
- Meets ASTM A108 specifications ensuring quality and performance.
- Excellent machinability and can be heat treated for increased hardness.
- Ideal for high-stress applications like gears, shafts, and fixtures.
- Unpolished surface maintains authentic mill finish for durability.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.