4140 Chrome Alloy Steel Hollow Polished Bar
Round Bars: 3mm - 80mm
Square Bars: 4 to 100mm
Hexagonal Bars: 2mm to 100mm
ASTM Standards ASTM A182
Lengths
Round Bars: 6.100 to 6.400m
Hexagonal Bars up to 20ft
Square Bars: 12x12mm - 250x250mm
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
- Send E-mail: ss@gneesteel.com
- Tel: +8615824687445
GNEE 4140 Alloy Steel Hollow Polished Bar introduce
4140 Chrome Steel Hollow Polished Bar
4140 Steel Round Bar, also known as AISI or SAE 4140, is a versatile, high-strength alloy steel commonly used in manufacturing. It contains chromium, molybdenum, and manganese, giving it exceptional strength and toughness. This makes it suitable for automotive, aerospace, oil and gas, and construction applications. Adding carbon also allows for great hardenability, making it ideal for heat treatment processes such as quenching and tempering to achieve desired mechanical properties.
Gnee Steel is a manufacturer, distributor, exporter and supplier of AISI 4140 Alloy Steel Round Bars in compliance with various national and international standards. We are one of the excellent suppliers of AISI 4140 Alloy Steel Hollow Bars.
AISI 4140 Alloy Steel Hollow Bars
SAE 4140 Nickel Hollow Bars
UNS G41400 Hollow Bars
AISI 1.7225 Hollow Bars
Carbon Steel 4140 Hollow Bars
4140 AISI Hollow Bars
GNEE 4140 Chrome Alloy Hollow Polished Bar Specification
Specifications of Alloy Steel AISI 4140 Bar
| Dimensions: | ASTM, ASME, DIN, BS, EN, IS, AMS, JIS, IBR & Other International Standards. |
|---|---|
| Standard: | ASTM A689, JIS G4801, DIN 17221, GB/T 18254, ASTM A295, JIS G4805, etc. |
| Alloy Steel AISI 4140 Round Bars Range: | Range – 3.17mm to 350mm dia |
| Alloy Steel AISI 4140 Round Bars Diameter: | 5mm-500mm (Customized size is acceptable) |
| Alloy Steel AISI 4140 Round Bars Length: | 1m-9m or according to the customer's requirement |
| Type: | Round bar, rod, square bar, flat bar, hexagon bar, angle bar, channel bar, threaded bar |
| Alloy Steel AISI 4140 Round Bars Technique: | Forged/Hot Rolled/Cold Drawn/Peeled |
| Alloy Steel AISI 4140 Round Bars Surface: | bright round bar, pickled round bar, black round bar |
Alloy Steel AISI 4140 Round Bar Chemical Composition
| Grade | AISI 4140 |
|---|---|
| C | 0.15 - 0.42 |
| Mn | 0.5 - 0.8 |
| Si | 0.17 - 0.37 |
| S | 0.035 |
| Cu | 0.25 |
| Fe | - |
| Ni | 0.3 |
GNEE 4140 Chrome Alloy Steel Polished Bar Schedule
AISI 4140 Hollow Polished Bar: Market Standard Sizes
|
Outer Diameter (OD, mm) |
Wall Thickness (mm) |
Length (m) |
Tolerance |
Surface Ra (μm) |
|
|---|---|---|---|---|---|
|
15 - 30 |
2.0 - 5.0 |
1.0 - 3.0 |
±0.05mm |
0.4 - 0.8 |
|
|
31 - 50 |
3.0 - 8.0 |
1.5 - 4.0 |
±0.08mm |
0.2 - 0.6 |
|
|
51 - 80 |
5.0 - 12.0 |
2.0 - 6.0 |
±0.10mm |
0.1 - 0.4 |
|
|
81 - 120 |
8.0 - 20.0 |
2.5 - 8.0 |
±0.15mm |
0.1 - 0.4 |
|
|
121 - 200 |
15.0 - 30.0 |
3.0 - 10.0 |
±0.20mm |
0.4 - 0.8* |
GNEE Group Factory Environment
GNEE Group 4140 Chrome Alloy Steel Hollow Bar Factory Environment
GNEE Group 4140 Steel Hollow Polished Bar Packaging
GNEE Group 4140 Chrome Hollow Polished Bar Packaging
GNEE Group Testing
GNEE Group 4140 Steel Hollow Polished Bar Testing
FAQ
Is 4140 alloy steel corrosion resistant?
Although 4140 steel contains chromium to improve corrosion resistance, it is not highly resistant to corrosion. Appropriate coatings or protective measures are recommended for use in corrosive environments.
What is the difference between 4140 and 4340 alloy steels?
4140 steel has a lower carbon content than 4340 steel, making it easier to machine. However, 4340 steel has higher strength and toughness, especially in larger sections, and is often used in heavy-duty applications.
Can 4140 alloy steel be welded?
Yes, 4140 steel can be welded using the proper welding techniques and precautions. However, post-weld heat treatment may be required to restore its properties, especially in the heat-affected zone.
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