China Low Alloy 4140 Steel Rod

AISI 4140
Low Alloy 4140 : ASTM A29(Vo1.05)
General Scope
AISI 4140 low alloy steel containing Chromiun and Molybdenum is the most widely used alloy for oil path applications .Usually supplied in the hardened and tempered condition at 22HRC max. it also finds favour in many applications requiring higher strength levers up to 150KSI 0.2% PS. The grade is not NACE MRO175 arrroved in these conditions ,and should not be used in environments containing H2S.
It is extensively used in tublar form for downhole tools . Several hybrid analysis are available all based on the AISI chemistry . The most common change is to increase the Molybdenum level at 35% max on diameters ,typically greater than 6''. Increasing Molybdenum improves the hardenability.
The hardenability limitations of this grade (depth to which it will harden/obtain the specified mechanical properties after heat treatment) must always be taken into account when designing and selecting equipment.

1. Approved by weatherford,schlumberger
2. 100% material traceability
3. Best prices and after-sales services
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FAQ
1. Q :what is your advantages ?
(1) Our steel pipe approved by Weatherford ,Schlumberger,CNPC,CCOOC etc.
(2) 100% material traceability
(3) Best after-sales service
(4) Small trial order is acceptable
(5)Big stock in our factory .
2. Q: What is your main payment term ?
They are T/T and L/C , 20% advance payment ,80% balance againest B/Lcopy;
100% irrevocable L/C at sight . If you have any other requests , we can discuss it .
3.Q What is your delivery time ?
If we have it in our stock , we can ship to you in 3-5 days ;
If the order should be produced , normally need 25-60days after you 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 material 100% traceability , all of our pipes have the factory test report and the quality guarantee certificate .
5. Q:Can you make OEM ?
Yes . We can make your company logo , information on the pipes .
6. Q: How to guarantee the product quality ?
All of our steel pipes manufacturered by china famous steel manufacturers , the products have been approved by Weatherford ,Schlumberger etc. we can supply you detailed test reports and third party test report.
7. Q: Can i get a sample ?
We are honored to send you samples for your quality check .