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AISI 5140 Hot Rolled Steel Pipe Price Seamless Precision Heat-treatment OD 114 x ID 92mm 40Cr Tempering Alloy Steel Tube Round Pipes Factory
4140 alloy structural steel is a grade in the American Standards Institute (AISI/SAE), and its equivalent material to the Chinese National Standard (GB) is 42CrMo. Here is a detailed analysis: 12
1, Chemical composition comparison
4140 (American standard)
Carbon (C): 0.38~0.43%
Manganese (Mn): 0.75~1.00%
Chromium (Cr): 0.80~1.10%
Molybdenum (Mo): 0.15~0.25%
The content control of other elements (such as phosphorus and sulfur) is relatively loose.
42CrMo (National Standard)
Carbon (C): 0.38~0.45%
Manganese (Mn): 0.50~0.80% (significantly lower than the American standard)
Chromium (Cr): 0.90~1.20%
Molybdenum (Mo): 0.15~0.25%
The control of phosphorus and sulfur content is stricter.
Difference point: The difference in manganese content may affect hardenability and thermal processing performance, so the two cannot be completely replaced in specific scenarios.
2, Mechanical properties and heat treatment
The tensile strength of 4140 is 795 MPa and the hardness is 241 HB. The tempered martensitic structure can be obtained through quenching (880 ºC oil quenching) and tempering (650-680 ºC), optimizing the overall performance.
The mechanical properties of 42CrMo are similar to those of 4140, but attention should be paid to the slight adjustment of the heat treatment process to adapt to the difference in manganese content
3, International equivalent grade
In addition to Chinese 42CrMo, 4140 also corresponds to the following international grades:
Germany: 42CrMo4
Japan: SCM440
Russia: 38XM.
4, Application Fields
Both are used for high-strength components, such as turbine fasteners, petroleum drilling tools, etc., but the more suitable materials need to be selected according to specific working conditions (such as corrosion resistance and hot processing requirements).
Products
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Carbon Steel Pipe/Tube
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Material
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Q195, Q235, Q345;AISI 1045,CK45,27Simn,45#, ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,P195, P235, P265, P195GH, P235GH, P265GH, 4140 5140 5130 4130 40cr 30crmo 13CrMo4-5, and 10CrMo9-10.etc.
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Wall Thickness
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0.7mm~300mm
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Length
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Length:Single random length/Double random length
5m-14m,5.8m,6m,10m-12m,12m or as customer's actual request |
Standard
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JIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002
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Outdiameter
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10-1020mm or as customized
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Section Shape
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Square, Rectangular, Round
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Technique
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Hot Rolled,Cold Drawn
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Packing
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Bundle, or with all kinds of colors PVC or as your requirements
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Ends
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Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded
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MOQ
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1 Tons, more quantity price will be lower
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Surface Treatment
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1. Galvanized
2. PVC,Black and color painting 3. Transparent oil,anti-rust oil 4. According to clients requirement |
Product Application
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1. Fence, greenhouse, door pipe,greenhouse
2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient |
Origin
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China
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Certificates
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API ISO9001-2008,SGS.BV
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Delivery Time
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Usually within 10-45 days after receipt of advance payment
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Q1: Why choose us?
A: Our company, as an internationally experienced and professional supplier, has been engaged in steel business for more than ten years. We can provide a variety of steel products with high quality to our clients.
Q2: Can you provide OEM/ODM service?
A: Yes. Please feel free to contact us for more details.
Q3:What is your terms of payment?
A: 100% T/T advance.
30% T/T and balance against copy of documents.
30% T/T advance, balance L/C at sight.
Q4: Can we visit your factory?
A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
Q5: Can you provide sample?
A: Yes. Sample is free for regular sizes, but the buyer needs to pay freight cost.
Q6: How long is your delivery time?
A: Regular lead time is 15 to 30 days after receiving deposit.