Steel bar/Hollow steel/Anchor steel
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Drill steel is a type of steel used to manufacture drill steel bits that work with rock drilling machinery. It is mainly used for drilling and blasting holes in rock or soil during rock drilling and blasting construction.
Product name：
Martensitic high-chromium stainless steel pipe
Material：
3Cr13
Warehouse：
Tianjin
Surface treatment：
Quenching and tempering/polishing
Category：
Keyword：
Steel bar/Hollow steel/Anchor steel
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Details description
Common Materials
Alloy drill steel: such as 35SiMnMoV, 55SiMnMo, etc., which have high strength, toughness and fatigue resistance, suitable for medium and large diameter drill rods, drilling medium and deep rock holes. 23CrNi3MoA, 18CrNi3MoA, 45CrNiMoVA and other alloy steels are widely used in the drill bit series of drill bits, drill rods, connecting sleeves, etc.
Production Process
Smelting: Modern hollow steel smelting mostly uses electric arc furnace smelting - vacuum degassing - secondary refining methods to improve the purity of steel and reduce non-metallic inclusions.
Rolling: The steel billet is processed into the required shape and size through rolling process, such as hexagonal and circular cross-section hollow steel. The process parameters should be controlled during rolling to ensure the quality and performance of the steel.
Heat treatment: Including normalizing, tempering, quenching, etc., such as tempering can eliminate the brittleness and internal stress after quenching, and improve the plasticity and impact toughness of the steel.
Performance Requirements
High strength and high toughness: It can withstand high-frequency impact and torsional torque of 2600-3000 times/min, transmit impact energy of more than 85-750J, and at the same time have good toughness to ensure low fatigue notch sensitivity.
Good fatigue resistance: Working under cyclic stress, it needs to have high cycle toughness to reduce the fatigue crack propagation speed.
Certain corrosion resistance: Mainly the corrosion resistance of atmosphere and mine water, to prevent corrosion in the working environment.
Drill Steel Application
Widely used in mining, railway, highway, tunnel, culvert, geological, oil field, municipal construction and other construction projects. According to different construction methods and operation methods, drill bits can be divided into several categories such as top hammer type, scraping type, down-the-hole type, and rotary type. The materials include hexagonal hollow steel, round hollow steel, flat hollow steel, geological steel pipe, drill pipe connector material, triangular steel pipe, blast furnace opening steel pipe, bearing steel pipe, down-the-hole drill pipe, water well drilling rig main rod, triangular drill rod, light drill rod, rib drill rod, grooved drill rod, spiral drill rod, down-the-hole drill rod, etc.
Qualification certification
Corporate video
Seamless steel pipe manufacturing
3PE anti-corrosion pipe manufacturing
Spiral steel pipe manufacturing
Application fields
Petrochemicals
Petrochemicals
Aerospace
Aerospace
Energy equipment
Energy equipment
Oil/gas/water pipelines
Oil/gas/water pipelines
Building construction
Building construction
Dredging & piling works
Dredging & piling works
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FAQ
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