Welcome to Shandong Qigang Steel Co., Ltd.
Drill Collar
Classification :
Oil country tubular goods
Keywords :
Oil country tubular goods
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 |
ID |
Length |
Weight |
Typical Bending |
|
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
We can provide wooden pallet packaging Wooden packing，Steel strapping packaging.Plastic packaging and other packaging methods.We are wiling to package and shlp products according to the weight, specifications, materials, economic costs and customer requiremenls，We can provide conlalner or buk transporaon, coad,ral or hand walenlay and oherland tanspotalonmehod forexpor.0f course, i there are specdal reoquremens, we can aisouse ar transporaon.
FACTORY
Twenty years of technological accumulation: Twenty years of focus and innovation have enabled us to accumulate profound knowledge of production processes and mature quality management experience. We have a professional technical team and advanced testing equipment to ensure the quality of every factory product.
Customer Testimonials
Shandong Qigang Steel Co., Ltd., adhering to the business philosophy of "Quality First, Reputation Foremost, Customer Supreme," leverages our unparalleled scale advantages, reliable product quality, and competitive prices, looking forward to becoming your most trusted strategic partner in steel products.
Customer Visits
Strong Scale and Strength: We own a modern industrial park covering 10,000 acres, which is not only the cornerstone of our strong production capacity but also ensures economies of scale and supply stability, enabling us to easily handle large-volume, high-standard global orders.
APPLICATION
Steel plates/steel coils: We provide plain carbon steel plates, low alloy steel plates and hot-rolled and cold-rolled steel coils of various materials, thicknesses and sizes with stable quality. Galvanized/color-coated coils: We have advanced galvanizing and color-coated production lines. Our products have good corrosion resistance and decorative properties and are widely used in construction, home appliances, automobiles and other industries.
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Service E-mail
Sales Address
Jinan City, Shandong Province,China
