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1SPEC(mm):AW:57.2*4.35,BW: 73*6.35 NW:88.9*6.35 2Material:XJY850 30CrMnSiA, 3Tensile strength:1060MPa, 4yield strength:1000MPa - details see: https://www.machineto.com/wireline-drill-pipe-and-casing-tube-nq-hq-pq-nw-hw-pw-10317134

drill pipe and casing AW, BW, NW,HW,PW
SPEC(mm):AW:57.2*4.35,BW: 73*6.35 NW:88.9*6.35 HW: 114.3*6.35 PW:139.7*6.35

1Prouct features:

1 Superior-quality green pipe and advance heat treatment process-high strength and high toughness

2 To meet requirment of the API5D and ISO9001

3 equipped with advanced inspection instruments and a strictly enforced quality controlling

4 due to our proffestional technicians and product flexibility, we are capable of meeting some customer's specific requirements

2Geographical drill pipe

Geographical drill pipe is applicable for geographical,hydrographical, coal mine, terrestrial heat engineering drilling.

The main products include 42,50,60 and 63.5. The major technical indexes of the geographical drill pipes

adopt seamless steal pipes are in strict compliance with international standards.

The raw materials of drill pipes produced by the company are sourced from the five famous steel companies

obtaining the certification of JSO9002 Quality Management System: China Angang Steel,Baogang steel,

henggang steel .The pipe materials for geographical drills are strictly specified in terms if sizes, forms,

weights technical specifications,test methods,test regulations, package,markings, and quality certificates .

All of the seamless steel pipes adopt the original ex-factory identifications. If it is contracted that goods are delivered in terms of steel grades, the identifications

and quality certificates of the steel pipes are indicated with steel grades. The steel grades of drill pipes

that are currently on the market are DZ40,DZ50,DZ60 and R780