Complaint
Gray Iron Round Bar is stocked in an assortment of diameters, from 0.625" to 26.560". As-cast round bars are made to clean up to the nominal size. Additional stock is added to allow for out-of-round and normal imperfections in the as-cast surface. For applications with demanding tolerances, centerless grinding and turning services are available. Standard bar lengths are 72", but we can supply them in lengths up to 144".
Upon request, Industrial Tube & Steel can supply Gray Iron Round Bar at custom lengths. Our industry-leading automatic sawing equipment allows us to cut raw material to any specified dimension quickly and precisely.
Industrial Tube & Steel carries a wide selection of Gray Iron Round Bars to suit any application. This material is produced to meet ASTM A48, Class 40 specification standards,
Curb the cost of manufacturing parts by reducing machining time and extending tool life with ductile iron square bar. This material is comparable in strength to plain carbon and free-machining steels, but it offers improved machinability at a lower overall cost.
Ductile iron square bar is stocked in a range of sizes, from 2.030" x 2.030" to 21.000" x 21.000". As-cast squares are made to the actual size with no allowance for machine stock added. Squares are cast to actual dimension, with clean up stock dependent on the height-and-width ratio. They can be milled to achieve close-tolerance benefits, upon request. Standard lengths are 72", while additional lengths are available up to 144".
Industrial Tube & Steel Corporation is ready and willing to answer any of your cast iron size, tolerance, or length needs. Our industry-leading automatic equipment enables us to cut raw material to your specific dimensions quickly and efficiently.
As-cast rectangles are made to the actual size with no allowance for machine stock added. They are cast to actual dimension, with clean up stock dependent on the height-and-width ratio.
Industrial Tube & Steel carries a vast inventory of ductile iron rectangular bar to suit any application. This material is produced to meet ASTM A536 specification standards, and is available in the following grades:
65-45-12 grade ductile iron contains nodular graphite in a matrix of ferrite with small amounts of pearlite. The ferritic structure gives excellent machinability with good surface finishes along with optimal impact strengths, fatigue properties, electrical conductivity, and high magnetic permeability. This iron has approximately the same tensile and yield strengths as AISI 1020 steel in the as-rolled condition.
80-55-06 grade ductile iron contains nodular graphite in a matrix of ferrite and pearlite. The pearlite-and-ferrite structure provides higher wear resistance and strength when compared to a ferritic grade of ductile iron. This material is readily machinable and displays good surface finishes. Tensile and yield strengths are similar to AISI 1040 steel in the as-rolled condition.
100-70-03 ductile iron combines nodular graphite in a matrix of pearlite with a small amount of ferrite. It's produced in a range of sizes and shapes and is often used in place of plain carbon steel. Its machinability is similar to carbon steel.
| Product Name | Ductile iron bar/cast iron casting / ductile iron cast |
| Brand: | QT500-7 |
| Standard: | GB 1348-88 |
| QT500-7 characteristics and scope of application: | It is ferric ductile iron, medium strength and toughness, good machinability. At low temperature, toughness changes to brittleness, but low temperature impact value is higher, and has a certain temperature resistance and corrosion resistance. It is widely used in oil pump gear of internal combustion engine, temperature cylinder bulkhead of steam turbine, valve body of hydraulic turbine, bearing bush of railway locomotive and vehicle, transmission shaft of machine seat frame and so on. |
| QT500-7 Chemical composition: | Carbon C: 3.6-3.8 Silicon Si: 2.5~2.9 Manganese Mn lt; 0.6 Sulfur S lt; 0.025 P P lt; 0.08 Magnesium Mg: 0.03-0.05 The content of rare earth RE was 0.03-0.05 |
| Mechanical properties | Tensile strength σb (MPa) : ≥500 Conditional yield strength σ0.2 (MPa) : ≥320 Elongation δ(%) : ≥7 Hardness: 170 ~ 230HB |
| Heat treatment specification: | (determined by the Supplier, the Following is the Heat Treatment Specification of a Sample, for Reference) 920ºC |
| Annealed Microstructure: | Ferrite + Pearlite. |
| Surface Quenching: | In Order to Improve the Surface Hardness, Wear Resistance and Fatigue Strength of Some Castings, Surface Quenching Can Be Used. Gray Cast Iron and Ductile Iron Castings Can Be Surface Quenched. Generally, High (medium) Frequency Induction Heating Surface Quenching and Electrical Contact Surface Quenching Are Used. |
| Chemical Heat Treatment | For Castings That Require Surface Wear Resistance or Oxidation Resistance and Corrosion Resistance, Chemical Heat Treatment Processes Similar to Steel Can Be Used, Such As Gas Soft Chlorination, Chlorination, Boronizing, Sulfurizing and Other Treatments. |
| Thickness | Customized according to requirements |
| Ductile Iron | Round bar | 0.625" to 26.560" |
| Square bar | 2.030" x 2.030" to 21.000" x 21.000" | |
| Retangular | 2.250" x 3.250" to 20.000" x 25.600" |
