Case Hardening Steel Bars And Sheets

Product Details:

Steels with only carbon as their specific alloying element are known as carbon steels. Traces of 0.4% silicon and 1.2% manganese can be found in these steels. Carbon steels also contain small quantities of copper, nickel, molybdenum, aluminium and chromium.

Cold-extruded and case-hardened parts Heat Treatment:

• Normalize at 1675° to 1725°F (913° to 941°C) before air cooling
• Full anneal at 1600° to 1725°F (871° to 941°C) before furnace cooling
• Process anneal after cold working at 1100° to 1225°F (593° to 663°C)
• Harden
• Carburized
• Not carburized
• Can be case hardened

Machinability:

• Readily machined
• Annealed
• Normalized
• Cold-drawn
• Carburized
• Quenched, tempered
• Good surface finish may be compromised from tearing in annealed state

Workability:

• Hot roll or forge from 1800° to 2300°F (982° to 1260°C)
• Intermediate annealing required for substantial cold work
• Fully anneal when further cold work will follow extensive cold work

Soft Annealing

• Heat to 850-950°:C, cool slowly. This will produce a hardness of 90-100 HB

Product Details:

Soft Annealing:

• Heat to 650-700 0C.

• Temperature 900-950 0C
• Cooing from carburizing temperature: Water, oil, air, thermal bath, cooling box.

• Core hardening 850-880 0C.
• Case hardening: 810 -8400C. 
• Quenching media: Water, oil, air, thermal bath.

• Tempering temperature : 170-200 0C.

• Hot Forming temperature: 1100-850 0C.

Chemical composition:

Heat Treatment And Hot Plastic Deformation Temperatures:

Product Details:

C-20 is an unalloyed low carbon mild steel grade supplied as a hot rolled or bright drawn finish bar. As a low carbon steel grade it provides low strength with good machinability and is suitable for welding. Mild Steel, fairly easy to machine but with a tendency to ‘rip’ if unlubricated. It is very easy to weld and is used as a more general purpose steel for multiple applications.

• Stress components such as torque loaded shafts, high bending forces and shock loading.
• The material will yield and distort under stress conditions, bending before shear.

• Surface ‘ripping’ is more evident in EN3 so lubrication is essential.
• Fairly high surface speeds should be used with moderate feeds.
• Screw cutting is easy with cutting oil and achieving a fine finish is achieved with slight polishing.
• Very nice to weld with good flow and strength.

• C-20 is commonly supplied bright drawn or as rolled. If annealing is required heat to 880-910°C, furnace cool.

• As a low carbon steel C-20 is not ideally suited for heat treatment (EN8 or EN9 may be a better suited option).
• If hardening is required heat to a temperature of 880-910°C. Quench in water and temper.

• When hardening C-20 heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each component.
• Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities.
• Please consult your heat treatment provider for full guidance on heat treatment of C-20 carbon steel.

Product Details:

Alloy steels contain a wide range of steels whose compositions exceed the limitations of C, Mo, Cr, Va, Mn, Ni, Si, and B fixed for carbon steels. These steels are more responsive to mechanical and heat treatments than carbon steels. AISI 8620 alloy steel is a common, carburizing alloy steel. This alloy steel is flexible during hardening treatments, thus enabling improvement of case/core properties. The following datasheet will provide more details about AISI 8620 alloy steel.

Product Details:

C1018 is a general purpose low carbon steel with good case hardening qualities. It has a higher manganese content than certain other low carbon grades, such as 1020. With higher manganese, 1018 is better steel for carburized parts, since it produces a harder and more uniform case. It also has higher mechanical properties and better machinability due to the cold drawing process. Most 1018 is produced by cold drawing. In this process, oversize hot rolled bars, which have been cleaned of scale, are drawn through dies to the required size. Cold drawing increases tensile and yield strength but decreases ductility. Cold drawing also increases torsional strength, surface hardness and wear resistance. Due to size limitations of the cold drawing process, large diameter bars are generally turned and polished, the hot roll rounds usually machine turned, rather than drawn, then abrasively polished. C1018, available in rounds, flats, squares and hexagons, has a relatively large size selection.

• Machinability is rated at 78% of B1112. Average cutting speed 130 ft/min.
• This grade is easily welded by all welding processes including gas, air, and submerges arc, and the resultant welds and joints are of extremely high quality.
• Preheat and post-weld heating is generally not necessary.

Mechanical Properties:

Test parameters for corrosion experiments, surface characterization and inhibitor characterization:

Product Details:

C10 is a plain carbon steel with a nominal 0.10% carbon content. It is relatively low strength steel but it may be quenched and tempered for increased strength.

• Heat to 850-950 0C, Cool slowly. This will produce a harness of 90-100HB.

• Stress relieving to remove machining stresses should be carried out by heating to approx 540 0C, holding for 1-2 hours at heat, followed by air cooling.
• This operation is performed to reduce distortion during heat treatment

• Hot forming temperature 1299-950 0C.

• Machinability of C10 steel is fairly good, especially in the cold drawn or cold worked condition.
• Based upon Carbon steel AISI 1112 as a reference that is considered 100% machinable (easily machined) the C10 steel has a rating of 55%.

• This is a plain carbon steel has no corrosion resistance. It will rust unless protected.

• C10 steel may be welded by all of the standard welding techniques

• C10 is easily cold worked by traditional means. Following severe cold working a stress relief, or full, anneal should be performed.

Mechanical PropertiesApplications:

• The aerospace industry, automobile motorcycle bicycle manufacturing, bearings, medical equipment, instrumentation, and precision instrument industries are the ideal matching products

• Carbon steel ball, chrome steel ball, stainless steel ball, complete product specifications, can provide you with accuracy of 10 -1 000 level within the various types of steel balls of various specification