Tool Steel Supplier

Most rolling element bearings are manufactured using rings and rolling elements fabricated from AISI 52100 degassed chrome bearing steel. While AISI 52100 chrome steel is exceptionally suited for many applications, there are other cases where special materials are required. Criteria for these scenarios may include: Greater Corrosion Resistance Higher Temperature Durability Lower Temperature Durability Grease Free Use Lighter Weight Applications common to these needs can be found in a variety of manufacturing processes and in the military and medical equipment. For such sensitive applications, it is important to ensure the right materials are used for the job. Bearings materials are classified as through-hardened materials (used largely for ball bearings) and case-hardened materials (used largely for roller bearings). Critical applications require vacuum-processed steels. Regardless of material type, a commonly accepted minimum hardness for bearing components is 58

Output for the first nine months of the year climbed 6.1% to a record 699.42 million tons. China's steelmakers pushed production rates to record levels last month, underscoring a broadly bullish picture for mills in the world’s biggest market as prices rally again. Output of crude steel rose 7.5% on year to 80.85 million metric tons, according to the statistics bureau Friday. That means a daily rate of 2.695 million tons, beating the previous all-time high of 2.673 million tons posted in June. Output for the first nine months of the year climbed 6.1% to a record 699.42 million tons. China’s mills have boosted output to benefit from an unusually long period of high prices and healthier profits that shows few signs of ending. The price of rebar used in construction rallied this week to the highest this year, while iron ore prices have surged to a March high, ahead of winter production curbs to fight pollution that are likely to continue to support the nation’s steel markets.

Metal shafts used in high-speed applications require a large amount of precision. If the shafts have rough finishes or lack concentricity and straightness, premature wearing of either the shaft or bearing being used can occur. In order to achieve the high level of precision required, steel shaft manufacturers often use a process called turned, ground and polished. This process involves – as the name implies – three important steps that converts a coarse, roughly dimensioned metal rod to a shaft with a straight and smooth finish. Turned: First, oversized steel rods are placed into a lathe chuck and tightened, and a cutting tool is placed in the tool holder on the lathe. The lathe is then started and the rod begins to spin. Once the steel rod reaches the desired speed, the cutting tool is fed into the rod which begins the process. The turning continues until the steel rod is brought down to the desired size. Multiple passes may have to be made with the cutting tool depending on h

The plastic injection moulding process produces large numbers of parts of high quality with great accuracy, very quickly. Plastic material in the form of granules is melted until soft enough to be injected under pressure to fill a mould. The result is that the shape is exactly copied. Once the plastic moulding has cooled sufficiently to harden the injection mould opens releasing the part. The whole injection moulding process then repeats. CLOSE MOULD CLAMPING – the moving and fixed platens of the injection moulding machine hold the mould tool together under pressure. INJECT MOLTEN PLASTIC INJECTION – the molten plastic that has been melted from pellet form in the barrel of the moulding machine is injected under pressure into the mould. HOLD MOULD CLOSED DWELLING – after the molten plastic has been injected into the mould, the pressure is applied to ensure all cavities are filled. COOLING – the plastic parts are then allowed to solidify in the mould. OPEN MOULD &

Alloy steel can be used in a wide variety of applications because there are so many different combinations of alloying elements that achieve different properties. With such a wide variety of alloying elements and combinations, choosing an alloy steel grade can be difficult. This article will explain some considerations when choosing an alloy steel for your next project. 7 things you should consider when choosing an alloy steel grade include: Does it need to have good formability? Does it need to be welded? Does it need to be machined? Does it need to have corrosion resistance? Does it need to be heat treated? What strengths are required? What are the typical applications? Does the alloy steel need to have good formability? Some elements, such as chromium and boron, increase the steel’s hardenability. Since most alloy steels are able to be hardened, forming is typically done in the annealed state of the material. Alloy steels that are annealed and have lower amou

What is Cold Work Tool Steel? & What is Hot Work Tool Steel? Cold Work Tool Steel Cold work tool steel basically is high carbon steel, the alloy content contains tungsten, manganese, chromium and molybdenum relatively low alloy steel. These alloys added to improve hardenability, allowing less distortion than the W series of quenching oil. These are relatively cheap steel, high carbon content they will produce sufficient wear resistance, used for short-term operation. It is used for all types of blanking and forming dies, gauges, fixtures, etc. In ASTM Steel standard Cold Work Tool Steel main include the “W” (Water Hardening), “O”(Oil Hardening), “A” (Medium Alloy Air Hardening), “D” (High Carbon, High Chromium) Tool Steel Series. Typical Steel Grade like: W1, W2, W5 tool Steel; O1, O2, O6, O7 Oil Steel; A2, A4, A6,A7,A8, A9,A10, A11 Cold work Steel; D2,D3, D4,D5,D7 Steel; etc. Hot Work Tool Steel Hot working tool steel to make iron and nonferrous metals as well as hot for