Drill Collar

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

Categorization:

Oil country tubular goods

Keywords:

Silver Sea New Material

+86-13396286399

bangyan@silverseagroup.cn

E-mail

jingwen@silverseagroup.cn

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DETALLES

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

Warehouse Storage

Our company is committed to providing a range of high-quality, innovative and cost-effective steel products that are widely used in various industries. We strive to create value for customers and meet their various needs. The company has the operating advantages of complete specifications, low prices, and fast delivery. With its trustworthy and quality-focused service concept, the company has won the trust and praise of customers at home and abroad.

Packing and shipping

Our products have been exported to Southeast Asia, the Middle East, South America, Europe, Oceania and other countries and regions, enjoying a good reputation. The product packaging has an inner layer of waterproof paper and an outer layer, iron packaging, and wooden pallets that are fumigated and fixed. It can effectively protect products from corrosion during ocean transportation. Domestic and foreign customers are welcome to call us for consultation and ordering.

Application field

The main supply areas are: aerospace, chemical industry, shipbuilding, nuclear energy, trains, environmental protection, precision processing, auto parts, machinery, electronic products, molds, medical equipment, construction, decoration, etc.