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Drill Collar

Product: Drill Collar Standard:API SPEC 7-1 Steel grade:AISI 4145H Sizes:3 1/8" -- 11" Connected Type:NC, IF, REG

Classification :

Oil country tubular goods

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PRODUCT DETAILS

API SPEC 7-1 drill collar is made with rolling or forging AISI4145H chromium molybdenum alloy steel. Therefore, it needs to control chemical composition and the content of trace elements effectively.

Specification

Standard	Number	OD (in.)	ID (in.)	Length (ft)	Weight (lb/ft)	Typical Bending Strength Ratio
SY5144-2007/API7-1	NC 23-31	3-1/8	1-1/4	30	22	2.57:1
	NC 26-35 (2-3/8 IF)	3-1/2	1-1/2	30	27	2.42:1
	NC 31-41 (2-7/8 IF)	4-1/8	2	30 or 31	34	2.43:1
	NC 35-47	4-3 /4	2	30 or 31	47	2.58:1
	NC 38-50 (3-1/2 IF)	5	2-1/4	30 or 31	54	2.38:1
	NC 44-60	6	2-1/4	30 or 31	83

Packing and shipping

Our products have been exported to 60 countries and regions in Southeast Asia, the Middle East, Africa, Europe, and South America, earning the high trust of overseas customers.

Customer Reviews

Adhering to the business philosophy of "honesty as the foundation, quality as the base, and mutual benefit for the future", Rongding Metal is not only a reliable supplier in China for you but also a strategic partner for your business expansion.

MATERIAL TESTING

Material Testing

FAQ

Q:What product information do l need to provide?

A: Please provide the grade, width, thickness, surface treatment requirements (if you have any) and the quantity you need to purchase.

Q:lt's my first time to import steel products, can you help me with it?

A: Of course, we have agent to arrange the shipment and we will do it with you.

Q:How long does your delivery time take?

A: Generally speaking, our delivery time is within 7-15 days, if the quantity is very large or special circumstances occur, it may be longer.

Q:How many countries you already exported to?

A: We have exported to the United States, Canada, Brazil, Chile, Colombia, Kenya, Ghana, Somalia, and other African countries. We have extensive export experience and are familiar with the needs of different markets, which can help our clients avoid many problems.

Q:Can l go to your factory to visit?

A: Of course, we welcome customers from all over the world to visit our factory

Q:Does the product have quality inspection before loading?

A: Of course, all our products are strictly quality tested before packing, unqualified products will be destroyed, customers can appoint a third party to inspect the products before loading as well.

Oil country tubular goods

PRODUCT DETAILS

Packing and shipping

Customer Reviews

MATERIAL TESTING

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