Manufacture G41420 Steel Quenching And Tempering Process Flow - China
price: 117.00 Dollar US$
G41420 steel is an alloy structural steel in the American ASTM standard, corresponding to the Chinese grade 42CrMo.
It has high strength, good toughness and hardenability, and is often used to manufacture high-strength mechanical parts.
Quenching and tempering treatment (quenching + high temperature tempering) process flow 1 - Pretreatment (normalizing or annealing, optional) - **Purpose**: Refine the grains, eliminate forging or rolling stress, and improve machinability.
- **Process parameters**: - **Normalizing**: Heat to **850~880°C**, keep warm and air cool.
- **Annealing**: Heat to **820~850°C**, furnace cool to **600°C** and air cool.
2 - Quenching (key step) - **Purpose**: Obtain martensitic structure and improve hardness and strength.
- **Process parameters**: - **Heating temperature**: **840~860°C** (avoid overheating to cause coarse grains).
- **Hot-holding time**: calculated according to the effective thickness of the workpiece (usually **1.5~2 min/mm**).
- **Cooling medium**:
- **Oil quenching** (recommended, to reduce the risk of deformation and cracking).
- **Water quenching** (suitable for large-section workpieces, but prone to deformation and cracking, so be careful).
3 - High-temperature tempering (key step)
- **Purpose**: eliminate quenching stress, improve toughness, and obtain tempered bainite structure.
- **Process parameters**:
- **Tempering temperature**: **550~600°C** (adjustable according to performance requirements).
- **Hot-holding time**: **2~4 hours** (to ensure sufficient tempering).
- **Cooling method**: air cooling (to avoid temper brittleness).
If more specific G41420 steel process parameters are required (such as the hot-holding time for workpieces of different sizes), it is recommended to adjust them in combination with the specific part size and performance requirements.
Songshun Company Website:
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Company Contact:
- Posted By: Dongguan Songshun Mould Steel Co., Ltd.
- Phone: 076985475596
- Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , Guangdong , China
- Email:
- Website: https://songshunsteel.com/
Published date: May 26, 2025
- 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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