ASTM A519 Alloy Steel Oil Well Drill Pipe, Seamless Chromoly Tubing for Nonferrous Metal Mining Projects

ASTM A519 Alloy Steel Oil Well Drill Pipe, Seamless Chromoly Tubing for Nonferrous Metal Mining Projects

Description

This ASTM A519 alloy steel drill pipe represents premium-grade seamless mechanical tubing engineered for demanding applications in both oilfield drilling and nonferrous mining operations. Manufactured from chromium-molybdenum steel (typically 4130/4140 grades), it delivers exceptional mechanical properties including high tensile strength, superior torsional resistance, and enhanced fatigue durability.

In oil well drilling applications, the pipe's seamless construction ensures reliable performance under high internal pressure and cyclic loading conditions. Its optimized strength-to-weight ratio enables deeper drilling capabilities while maintaining structural integrity in challenging downhole environments.

For nonferrous mining projects involving copper, lithium, nickel and other metals, this chromoly tubing demonstrates outstanding abrasion resistance against abrasive slurries and corrosive media. It serves excellently in critical roles including high-pressure hydraulic systems, mineral slurry transport lines, and drill rods for blast hole drilling.

The cold-drawn manufacturing process ensures precise dimensional tolerances and improved surface finish while enhancing yield strength through strain hardening. All materials are certified to ASTM A519 standards with complete traceability, guaranteeing consistent performance and reliability in the most demanding operating conditions.

Specification

Grade 4130 Pipe Chemical Composition

Grade 4130 Pipe Mechanical Properties

Key Features and Benefits

NACE MR0175/ISO 15156 Compliance: Certified for sour service applications with controlled hardness

Superior SSC/HIC Resistance: Specialized manufacturing prevents sulfide stress cracking

Enhanced Mechanical Properties: High yield strength (550-750 MPa) with excellent impact toughness

Seamless Reliability: Homogeneous structure ensures consistent performance in critical applications

Corrosion Resistance: Chromium-molybdenum composition provides improved corrosion resistance

Typical Applications

Mine blasting

Water well drilling

Geothermal wells drilling

Fore poling

Coal

Nonferrous metal mining projects

Quality Assurance

Full traceability and material certification

Comprehensive non-destructive testing (UT, MPI)

Hardness verification throughout length

SSC testing per NACE TM0177 methods

Dimensional inspection to API specifications

Packing
In plywood case and wooden box

Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is specialized in producing and selling high-end bearing tubes, auto alloy tubes, titanium and titanium alloy tubes, nickel and nickel-based alloy tubes, refrigerator condenser tubes, aluminum and aluminum alloy tubes and the like.

The company focuses on the development of new products, and has successively developed high diameter-wall ratio titanium-molybdenum-nickel alloy seamless steel tubes, nuclear power plant reactor driving mechanism used martensite stainless steel seamless steel tubes, auto critical components used alloy steel tubes, high-end refrigerator used corrosion-resistance galvanized condenser tubes, marine engineering and complex environment oilfield used high-strength corrosion-resistance G3 tubes, among which, nuclear power plant reactor driving mechanism used martensite stainless steel seamless steel tube has obtained high-tech product certificate of the province.

At present, the company has obtained authorization for 7 patents for invention, and 8 patents for utility model.