China Seamless Carbon Pipe Alloy Steel Mechanical Tube ASTM A519 AISI 4130 4140

AISI A519 4140 Mechanical tube/pipe
4140 Mechanical tubing is medium carbon alloy grade , which are widely used for many general purpose application that require high tensile strength and toughness. The addition of chromium and molybdenum as alloying elements , combined with heat treatment , provides the combined advantage of hardness , ductility ,and strength.

Specifications of 4140 tube/pipe
AISI A519 or According to customers' requirements.
4140 Characteristics
. Rather low carbon content with provides excellet welding characteristics .
. High yield strength and Tensile Strength
. More responsive to mechanical and heat than carbon steels.
. Is easily machineable with conventional methods
. Also ,Annealing ,forging ,cold and hot working ,and tempering can all be achieved .
Chemical composition of A519 4140 Alloy steel seamless tube/pipe

Elementcontent(%)Iron ,Fe96.785-97.77Chromium,Cr0.80-1.10Manganese,Mn0.75-1.0Carbon,C0.380-0.430Silicon,Si0.15-0.30Molybdenum,Mo0.15-0.25Sulfur,S0.0040Phosphorous,P0.035

Mechanical Properties of A519 4140 Alloy Steel Seamless tube/pipe

PropertiesMetricImperialTensile Strength655Mpa95000psiYield Strength 415Mpa602000psiBulk modulus (typical for steel)140Gpa20300ksiShear modulus(typical for steel)80Gpa11600ksiElastic modulus 190-210Gpa27557-30458ksiPoisson'ratio0.27-0.300.27-0.30Elonggation at break(in 50mm)25.70%25.70%Hardness,Brinell197197Hardness ,Knoop(converted from Brinell hardness)9292Hardness ,Rockwell C(converted from Brinell hardness.Value below normal HRC range ,for comparusion purposes only)1313Hardness ,Vickers(converted from Brinell hardness)207207Machinability (based on AISI 1212 as 100 machinability)6565

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Weatherford Specification
Schlumberger Specification
Professional Testing


FAQ
1. Q : Waht is your advantages ?
. Our sales team have been working in China state steel enterprises for more than 20 years,we have the strong relationship among famous china steel companies.so we can get anysteel products with very price and top quality .
. Our steel tubing/pipe approved by Weastherford,Schlumberger ,CNPC,CCOOC etc
. 100%material traceability
. Best after-sales service
. Samll trial order is acceptable
. Customized per customers' requirements
. Big stock in our factory
2. Q : What is your main payment term ?
. T/T and L/C , 20% advance payment ,80% balance againest B/L copy .
. 100% irrevocable L/C at sight . If you have any other requests , we can discuss .
3. Q: What is your delivery time ?
. If we have it in our stock , we can ship it to you in 3-5 days.
. If the order should be produced , normally need 30-60days after confirming the order;
. If your order is very urgent , we will try our best to meet your requirements.
4. Q: What is your warranty ?
Our materials 100% traceability , all of our steel tubing/pipe have the factory test and the quality guarantee certificates .
5. Q: Can you make OEM ?
Yes . We can make your company logo , information on the tubing/pipes.
6.Q : How to guarantee the quality ?
All of our tubing/pipe manufactured by china famous steel manufacturers , the products have been approved by world famous oil services compainies like Weatherford ,Schlumberger , America GE etc. we can provide you detailed test report and third party test report.
7.Q : Can i get a samples ?
Of course YES , we are honored to send you samples for your quality testing .
8. Q: How i can get a quotation ?
Please tell us below information to get a best quotation:
. OD dimension
. WT dimension
. Specifications
. Quantities
. Deliver time