Gb 30cr Steel Bars Main Characteristics And Applications - China

In terms of chemical composition, the carbon content of GB 30Cr steel bars is controlled between 0.27% and 0.34%, and the chromium content is typically in the range of 0.80% to 1.10%.

This ratio ensures that the steel maintains a certain strength while also exhibiting good ductility and toughness.

In addition to the main elements, GB 30Cr steel bars also contain small amounts of silicon, manganese, and other trace elements.

These trace elements play a supporting role in improving the steel's hardenability and other properties.

Key Characteristics

Compared to GB 30Cr steel bars, this steel exhibits higher strength and hardenability, with a critical hardenability of 8 to 34 mm in oil and 19 to 56 mm in water.

The steel also exhibits moderate cold deformation ductility and weldability, and good machinability after annealing or high-temperature tempering.

Application Examples: This GB 30Cr steel bar is typically used in the quenched and tempered state, but can also be used after normalizing.

It is used to manufacture critical mechanical parts that operate under wear and friction conditions or significant impact loads, such as shafts, pinions, balancing levers, connecting rods, bolts, gears, and various rollers.

Furthermore, this steel can be used for high-frequency surface hardening, creating parts requiring high surface hardness and wear resistance.

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• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

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• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
  After more than 10 years development and growing, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter.
  
  Combined with experienced exporting team and professional technical knowledge, Songshun Steel offers both technical advice and support, as well as global professional steel solution and service.
  
  Due to satisfactory reliable quality and professional service, Songshun expands our market worldwide, such as Colombia, Chile, Spain, Turkey, Iran, Vietnam, Malaysia ,UAE, Canada, Brazil, Mexico and so on.
  
  Songshun specialized in Special Steel for almost 20 years.
  
  We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.
  
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