Entries by XALK

A brief introduction of mold steel

Last article, we have introduced the “Tool Steel Grades Definition System”. As we all know, tool steels can be classified to many different types according to different standards. According to their detail application, tool steels can be divided into cutting tool steels, mold steels and gauge steels. Here we introduce the classification of mold steel. […]

The welding of duplex stainless steel S32750

Compared with Austenitic stainless steel, super duplex stainless steel has more Cr and Mo contents, which is beneficial to form ferrite and improve the corrosion resistance of the steel. The addition of Ni, N, Cu and Cu can improve the corrosion resistance of steel to non-oxidizing medium. Super duplex stainless steel has good weldability without welding hot and cold […]

What’s the effect of Co for carbide alloys?

Cobalt (Co) is a magnetic and scarce metal element. Cobalt resources are widely but imbalanced in the world. The reserves of Congo (DRC), Australia and Cuba account for 70% of the total global reserves, of which Congo accounts for 47.89%. Cobalt resources are mostly associated with copper-cobalt ore, nickel-cobalt ore, arsenic-cobalt ore and pyrite deposits. […]

What’ s metal cladding plate?

Metal cladding plate is composed of base steel (plain carbon steel) and composite layer (corrosion resistant metal) through the explosion and rolling process. The base material can be ASTM A 516 Gr70, ASTM A36, ASTM A283, ASTM A387 and other ordinary carbon steel and special steel. The cladding material can be ordinary stainless steel such […]

How to make titanium alloy easy to machine?

As everyone knows, Titanium and its alloys are difficult to machine and process due to their high strength, low thermal conductivity and chemical reactivity with tool materials (at elevated temperatures), pose a hazard to the tool and significantly reduce the tool life. In addition, a relatively low Young’s modulus leads to spring-back and chatter leading […]

Anodic oxidation technology of titanium and its alloy

Anodic oxidation is a commonly used surface protection treatment method for titanium and its alloys. Anodic oxidation of titanium refers to the method of generating oxygen on the anode in an electrochemical way and reacting with the surface of the anode titanium to form an oxidation film, also known as titanium electrode with metal oxide […]

What makes alloyed titanium grade5 so difficult to machine?

Titanium alloy has the advantages of low density, high strength ratio (strength/density), good corrosion resistance, heat resistance, toughness and plasticity, etc. It is widely used in many fields such as aerospace, automobile, medicine, sports goods and electrolysis industry. However, its poor thermal conductivity, high hardness, low modulus of elasticity and other characteristics make titanium alloys […]

The commonly used materials of metal bellows

Metallic bellows are wave-shaped tubes, also known as expansion or expansion joints. Metal bellows are elastic pipes that can be compressed or extended when pressure is applied to the outside of the pipe. When the pressure released and the material has not been stressed past its yield strength, the bellows will return to its original […]

What are the effects of alloying elements on Nickel-based steel?

The Nickel retains its austenitic cubic structure until it reaches the melting point, which provides freedom for ductile-brittle transition and greatly reduces manufacturing problems caused by the presence of other metals. Nickel is more inert than iron and more active than copper, so the order of corrosion resistance in reducing environment is Copper > Nickel […]