According to the movement of the blank, forging can be divided into free forging, upsetting, extrusion, die forging, closed die forging, closed upsetting. Closed and closed upsets have high material utilization due to the lack of flash. It is possible to complete the finishing of complex forgings in one process or several processes. Because there is no flash, the forging area is reduced and the re...

After forging, the metal can improve its microstructure and mechanical properties. After the casting structure is deformed and recrystallized by the metal after forging by hot working deformation, the original coarse dendrite and columnar grains become equiaxed recrystallized grains with fine grain and uniform size, so that the original segregation in the steel ingot, Loosening, porosity, slag inc...

Hot-deformed die steels, which are subjected to high impact forces during work, and still maintain high mechanical properties when in contact with high temperatures, require high strength, toughness, and high wear resistance. High tempering stability and thermal fatigue. To use the alloy die steel to meet the requirements. Commonly used grades are: 5CrNiMo, 5CrMnMo, 3Cr2W8V, 4W2CrSiV. It can manuf...

Milling fixes the blank and uses a high-speed rotating cutter to advance the blank and cut out the desired shape and features. Traditional milling is more used for simple contour features such as milling contours and slots, and CNC milling machines can perform complex shapes and features.Milling cutters are rotary tools with one or more teeth for milling. Each knife tooth intermittently cuts the s...

Lathe machining mainly uses a turning tool to turn a rotating workpiece. Lathes are mainly used to machine shafts, discs, sleeves and other workpieces with rotating surfaces. They are the most widely used type of machine tooling in machinery manufacturing and repair factories.Turning machining can be mainly provided by the workpiece rather than the tool. Turning is suitable for machining rotary su...

This kind of tubes is made by good quality seamless steel tube and formed by cold drawn process. This lemon steel tube is for the transmission shaft of the corn harvester, the transmission shaft of the agricultural machine, the drive shaft of the drive shaft of the agricultural machine.

Alloy Steel Spring Wires are mainly used for Clutch Spring,Spiral Spring.

Alloy Steel Spring Strips are mainly used for Automatic clutch patch,Woodworking band saw.

Yes,we can.

Martensitic stainless steel refers to a chromium stainless steel that maintains the martensitic microstructure at room temperature. In general, martensitic stainless steels have higher strength than austenitic stainless steels and ferritic stainless steels and can be strengthened by heat treatment, and have good mechanical properties and high temperature oxidation resistance. The steel in the atmo...

It is the Russia standard steel according to GOST 5950-2000.One of the shock resisting tool steel types with very good thoughness in combination with high hardenability, Impact- resistant, tungsten-alloyed cold-work tool.Its composition and performance are similar with 6CrW2Si and 1.2550.

Oil well tubing is a basic material for the petroleum industry. It is an indispensable special pipe for oil exploration and development. It is also a major strategic material for the oil industry. Its quality and performance are related to the comprehensive economic and security benefits of the oil industry.Oil well tubings are classified according to their uses; casings, oil pipes, drill pipes, e...

P91, can be used as subcritical, supercritical boiler wall temperature ≤ 625 °C high temperature superheater, reheater steel pipe, and wall temperature ≤ 600 °C high temperature header and steam pipe, can also be used as nuclear power heat exchangers and oil cracking furnace tubes.Standard: ASTM A213 ASTM A335Tensile strength: ≥585 (MPa)Yield strength: ≥415 (MPa)Extension rate: ≥20(%) P91 steel is...

1.T/T: 1)30% deposit in advance, the balance 70% paid before shipment.2)30% deposit in advance, the balance 70% paid against the copy of B/L.2.L/C1) L/C at sight2) L/C 30days/60days/90days/120ay after sight3.Upon negotiation

Phosphating is the process of immersing a seamless steel tube in a phosphating solution (predominantly acid-phosphate-based solution) that forms a layer of insoluble crystalline phosphate conversion film on the surface. Phosphating is a chemical process. The process of electrochemical reaction to form a phosphate chemical conversion film. The phosphate conversion film formed is called a phosphatin...

Grinding is an abrasive machining process that uses a grinding wheel as the cutting toolAbrasive machining is a machining process where material is removed from a workpiece using a multitude of small abrasive particles. Common examples include grinding, honing, and polishing. Abrasive processes are usually expensive, but capable of tighter tolerances and better surface finish than other machining ...

Upset ForgingUpset forging increases the diameter of the workpiece by compressing its length. Based on number of pieces produced, this is the most widely used forging process. A few examples of common parts produced using the upset forging process are engine valves, couplings, bolts, screws, and other fasteners.Upset forging is usually done in special high speed machines called crank presses, but ...

Boring is the process of enlarging a hole that has already been drilled (or cast) by means of a single-point cutting tool (or of a boring head containing several such tools), such as in boring a gun barrel or an engine cylinder. Boring is used to achieve greater accuracy of the diameter of a hole, and can be used to cut a tapered hole. Boring can be viewed as the internal-diameter counterpart to t...

Clutch Spring Suspension SpringSpiral SpringValve Spring

Planer KnifeChipper Knife Cutting Blade

Saw bladePlaner and jointer bladeTool bits

Our company can supply follows materials in chain cold drawing process:Size RangeRound Bar: Dia3mm-Dia120mmHex Bar: S4mm-S90mmSquare Bar:4mm×4mm-100mm×100mmFlat Bar: 2mm×8mm-40mm×140mmLength: 12000mm maxDimension ToleranceRound Bar: h8-h12Hex Bar: h10-h13Square Bar:h10-h13Flat Bar: h10-h13

Pickling and passivation is a chemical reaction. Firstly, the oxide skin and rust on the surface of steel can be removed by pickling solution, and the passivation process is completed at the same time. Can effectively prevent the seamless steel tube oxidation, to achieve the purpose of anti-corrosion. Before pickling and passivation, it is necessary to remove oil, degrease and remove impurities su...

3PE anti-corrosion steel pipe base metal includes seamless steel pipe, spiral steel pipe and straight seam steel pipe. The three-layer polyethylene (3PE) anti-corrosion coating has been widely used in the oil pipeline industry for its good corrosion resistance, water vapor permeability resistance and mechanical properties. 3PE anti-corrosion steel pipe anti-corrosion layer is of vital importance t...

Operation method: Simultaneous carburizing and nitriding to the surface of steel.Objective: To improve the surface hardness, wear resistance, fatigue strength and corrosion resistance of steel parts.Application points: 1. Mostly used for low-carbon steel, low-alloy structural steel and tool steel parts, the general depth of 0.02 ~ 3mm nitride layer; 2. Nitriding also requires quenching and temperi...

Operation method: Use the active nitrogen atom that is decomposed by ammonia gas at 500-600 degrees to make the surface of the steel part saturated with nitrogen to form a nitrided layer.Objective: To improve the surface hardness, wear resistance, fatigue strength and corrosion resistance of steel parts.Application points: It is mostly used for medium carbon alloy structural steels containing alum...

Operation method: Put the steel into the carburizing medium, heat it to 900-950 degrees and keep it warm, so that the steel surface will get a carburized layer with a certain concentration and depth.Objective: To improve the surface hardness, wear resistance and fatigue strength of steel parts, and maintain the toughness of the heart.Application points: 1. For low carbon steel and low alloy steel ...

the rods first undergo precision milling and processing, and are then put through grind surface chromium treatment, allowing a surface precision level of f8, and a surface hardness reaching HV850 minimum and up, which not only help to improve wear resistance but also help to extend the life cycle of the rods, thus helping the customer save cost.

Face milling Side millingOur company can supply follows materials in face milling and side mill processes:Size RangeWidth: 3600mm maxHeight: 2000mm maxDimension Tolerance-0mm, +0.05mm max

Full AnnealingFull annealing is the process of slowly raising the temperature about 50 ºC (122 ºF) above the Austenitic temperature line A3 or line ACM in the case of Hypoeutectoid steels (steels with 0.77% Carbon).It is held at this temperature for sufficient time for all the material to transform into Austenite or Austenite-Cementite as the case may be. It is then slowly cooled at the rate of ab...

Pit furnace: Dia1300mm max, Length9500mm max.Salt bath furnace: Length1900mm max, Width1600mm max, Height900mm max.Trolley furnace: Legth15000mm max, Width6000mm max, Height6000mm max.Tunnel type continuous reheating furnace：dia30mm-dia250mmInduction quenching line: dia15mm-dia120mmNormalizing cooling fan can be used in combination of wind capacity air-cooled systems.

Spheroidize AnnealingSpheroidize annealing is applicable to steels which have more than 0.8% carbon. Parts are heated to between 1150°F and 1200°F and holding it at this temperature for a period of time to convert the microstructure. Essentially, cementite changes from a lamella formation to an alpha ferrite matrix with particles of spheroidal cementite (Fe3C). Spherodize annealing is generally do...

It refers to the state of final plastic deformation or final heat treatment of the delivered product. The hot-rolled or cold drawn (rolled) state or manufacturing state generally delivered without heat treatment; the heat treatment state after heat treatment delivery, or the normalizing, tempering, solid solution, annealing according to the type of heat treatment status. When ordering, the deliver...

When the hardness of the steel is below 500 HB, the tensile strength is proportional to the hardness, kg/mm2(óB)=1/3 X HB=3.2 X HRC=2.1 X HS, but the above relation is not in any case. Established, from the aspect of heat treatment, when the tempering temperature is low, the correlation between kg/mm2 and HRC may be destroyed. The relationship between tempering temperature, hardness and tensile st...

Hydrogen induced cracking (HIC) English full name is: Hydrogen induced cracking. Hydrogen sulfide is one of the most corrosive and harmful media in oil and natural gas. In the process of natural gas transmission, the stress corrosion of hydrogen sulfide in the transmission pipeline accounts for a large proportion. When used in a wet hydrogen sulfide environment, hydrogen blistering (HB), hydrogen ...

Normalizing is a heat treatment process for making material softer but does not produce the uniform material properties of annealing.A material can be normalized by heating it to a specific temperature and then letting the material cool to room temperature outside of the oven. This treatment refines the grain size and improves the uniformity of microstructure and properties of hot rolled steel.

Normalizing AnnealingQuenchingTemperingQuenched+temperedCarburizingNitridingHigh-frequency surface hardening and other processing services.

Quenching is the process for making material harder. The metal is heated to a specific temperature and rapidly cooled (quenched) in a bath of water, brine, oil, or air to increase its hardness.One drawback of using this method by itself is that the metal becomes brittle. This treatment is therefore typically followed by a tempering process which is a heating process at another lower specific tempe...

Alloy 17-4PH (UNS S17400), Type 630, is a chromium-nickel-copper precipitation hardening martensitic stainless steel with an addition of niobium. 17-4PH combines high strength and hardness with good corrosion resistance.The alloy is furnished in the solution annealed condition (Condition A). It should not be used at temperatures above 572°F (300°C) or for cryogenic service. Optimal mechanical prop...

Tempering is carried out by preheating previously quenched or normalized steel to a temperature below the critical range, holding, and then cooling to obtain the desired mechanical properties. Tempering is used to reduce the brittleness of quenched steel. Many products that require hardness and resistance to breakage are quenched and tempered. The temperature chosen for the tempering process direc...