AISI 4140 Steel Pipe
Negotiable Min Order Quantity Unit
- Required Quantity
-
- Place of Origin
- China
- Payment Terms
- Negotiable
- Production method
- Negotiable
- Shipping / Lead Time
- Negotiable / Negotiable
- Keyword
- alloy pipes
- Category
- Other Minerals & Metallurgy Products
BIG CO.,LTD
China
- Verified Certificate
-
8
| Product name | AISI 4140 Steel Pipe | Certification | - |
|---|---|---|---|
| Category | Other Minerals & Metallurgy Products | Ingredients | - |
| Keyword | alloy pipes | Unit Size | - |
| Brand name | - | Unit Weigh | - |
| origin | China | Stock | - |
| Supply type | - | HS code | - |
Product Information
AISI 4140 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. Similar to grade AISI 4130 but with a slightly higher carbon content.
American Iron and Steel Institute (AISI 4140) is a member of the low alloy tool steel family characterized by small quantities of trace elements added to an otherwise simple steel. These trace elements, when compared with more simple steel such as 1040, improves the characteristics of 4140 . However, because 4140 remains relatively simple, it is used in a wider range of applications than more specialized tool steels like the D or S series of steel.
Heat Treatment
AISI 4140 has enough carbon present to allow for adequate heat treatment. Recommended hardening procedures are to bring the steel up to 1,675 degrees Fahrenheit for normalization (removal of stress within the steel). After it cools properly, heat the steel to 1,550 degrees Fahrenheit before quenching it in oil. The toughness of the steel makes machining in its hardened form difficult. However, after annealing the steel at 1,600 degrees followed by a slow cooling, the steel is much softer and far easier to machine. It can then be heat-treated after machining to produce a hard, precise item.
Applications
The lower cost due to simple chemistry coupled with the physical properties also makes it a good choice for axles, shafts and structural components. However, since the steel has a lower carbon content than other steels, it doesn’t harden to the same degree. This makes hard, sharp edges, such as those found in knives, difficult.
Since AISI 4140 is a moderately simple steel with a high degree of toughness and tensile strength, it is useful for machined applications such as gears, bolts and fasteners.
General Scope
One of the most popular alloys for Oil Field applications, a high proportion of which is in Tubular form for downhole tools and accessories.
Size (mm) we can supply:
Hot-rolled: O.D.: 51-508; W.T.:7∼60; L: max 16000
Cold-drawn: O.D.: 10-50; W.T.:2∼10; L: max 16000
Hot-expanded：O.D.: 325-1020; W.T.:6∼50; L: max 12000 and other specifications in accordance with customer requirements.
Packing:
Beveled/black painting/ plastic caps/ in bundles/ steel strips/ wooden protection
Inspection and Test:
Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength,Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test, Nodestructive Test, Hydrostatic Test.
Surface Treatment:
Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting, Epoxy & Fbe Coating Painting as requested.
Chemical Composition(%)of AISI 4140
Range | C | Si | Mn | P | S | Cr | Mo |
Min | 0.38 | 0.15 | 0.75 | - | - | 0.8 | 0.15 |
Max | 0.43 | 0.35 | 1 | 0.035 | 0.04 | 1.1 | 0.25 |
Mechanical Properties of AISI 4140
Condition | Hardened & Tempered |
UTS | 100KSI min |
0.2% Proof Stress | 80KSI min |
Elongation | 20% min |
Reduction of Area | 40% min |
Ordering Information
Orders for material under this specification should include the following, as required, to describe the desired material adequately:
Quantity | Feet, meters, or number of lengths |
Name of material | Seamless Alloy Steel Pipe |
Grade | STANDARD AND STEEL GRADE |
Manufacture | Hot-finished or cold-drawn |
Size using one of the following: | |
NPS and Schedule Number | |
Outside Diameter and Nominal Wall Thickness | |
Length | Specific or Random |
End Finish | |
B2B Trade
| Price (FOB) | Negotiable | transportation | - |
|---|---|---|---|
| MOQ | Negotiable | Leadtime | Negotiable |
| Payment Options | Negotiable | Shipping time | Negotiable |
- President
- Ben Yu
- Address
- Tongzhou District
- Product Category
- Steel Pipes
- Year Established
- 2011
- No. of Total Employees
- 1-50
- Company introduction
-
BIG Co.,Ltd, located in Beijing, China. Which is 180km away from Xingang port. Our corporation is specialized in handling the business of Alloy steel products. We have more than 10-years experiences cooperated with many clients both from domestic and overseas, and has obtained consistently high praise from our customers since it was set up.Our company is one of the leading supplier specializing in Alloy steel pipes and alloy round bars in China, focus on CrMo series\ CrMnMo series steel, such as AISI 4130 and 4140 is our hot-selling products. We have more advantages in heavy thickness seamless pipes, the thickness can up to 100mm . We can provide customers different specification standards e. g. ASTM A106, ASTM A335, ASTM A519, A213, A333, EN10216, EN17175 and etc. And we can order produce the pipes as customer's requirements even the quantity is a small one. By establishing a solid strategic cooperation relationship with our partners, we are integrating resources and optimizing efficiency. Our pipe business is dominating the global market day by day.Other than steel pipes and steel bars, we are also capable of supplying a wide variety of pipeline accessories, machining steel parts according to drawings, etc. All that consists of our one-stop sales. The integrated sales & service ensures customers with various demands an easier access for purchasing management.In the past years we have exported premium quality steel pipes, steel bars and machining parts to all over the world, such as Europe (France, Greek,Lithuania), South and North America (Chile, Argentina, Brazil,American, Middle East countries Iran, Iraq, UAE, Syria, Jordan, Saudi Arabia), Africa (Mauritius, Kenya, South Africa, Egypt), and Southeast Asia, etc. The products are quite welcomed in these regions and our company enjoys a sound reputation globally.The motto of the company is making high quality products to win the customers both from home and abroad and establishing honesty and credit ability to welcome friends all over the world. We sincerely welcome you to contact us for further information.
- Main Product
