| After-sales Service: | on Site on Line |
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| Warranty: | 12 Months |
| Certification: | ISO 9001:2000, ISO 9001:2008 |
| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier Hexagonal Kellys
3"API well Drilling Hexagonal Kelly Pipe 4145 H
Hexagonal drill kelly are made from AISI 4145H alloy bars that are quenched and tempered full length. A hardness range of 285 to 341 BHM and a minimum impact value of 54 Joules as per ASTM A 370 are maintained one inch bellow the surface at room temperature. To improve resistance to galling, all connections are phosphate-coated with an API thread compond. Each bar used to manufacture kellys has been examined with magnetic partice inspections and ultrsonic inspections.
3"- 6" Chinese best sale Drilling Hexagonal Kelly Pipe 4145 H
1. Product: Hexagonal drill kelly
2. Raw material: AISI 4145H
3. Supply range: 3"- 6"
4. Packing: anti-rust package, steel shelf with plastic bags
5. Standard: API Spec 7-1 or SY/T6509 Standard.
6. Delivery time: within 30 days
7. Delivery condition: as customers' requirement, semi-finished forging or finished product
8. Test: Ultrasonic test, tensile test, impact test, hardness test, etc.
9. Mechanical Propriety :conforming to API 7-1 and 5D
Kelly is the drive part of whole drill stem, it has two types, square kelly and hexagonal kelly and all of them are manufactured comfort to API Spec7-1 and SY/T6509-2000 criterion.
Our Square& Hexagonal kelly are made from AISI 4145H modified alloy bars that are quenched and tempered full length. After such heat treatment, its brinell hardness can reach 285-341. Kelly's'end, drive cross-section and joint are all processed and tested comform to API criterion.
| FAQ |
| Q: How can I place order? |
| A:You can contact us by email about your order details, or place order on line |
| Q: How can l pay you? |
| A:After you confrm our Pl, we will request you to pay.T/T (HSBC bank) and Paypal, Western Union are the most usual ways we are using |
| Q: What's the order procedure? |
| A: First we discuss order details, production details by email or TM. Then we issue you an Pl for your confirmation.You will be requested to do prepaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 15-25 days if we don't have the items in stock. Before production has been fnished,we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you. |
| Q:How do you take care when your clients received defective products? |
| A:replacement. If there are some defective items, we usually credit to our customer or replace in next shipment. |
| Q: How do you check all the goods in the production line? |
| A:We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure. |
Suppliers with verified business licenses
Audited Supplier 
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