34crmo4 alloy structural steel introduction
34CrMo4 alloy Structural steel Introduction:
34CrMo4 is a low carbon alloy structural steel, belongs to chromium molybdenum steel, mainly used in the manufacture of high temperature and high pressure work under the important parts, such as automotive engines, generator sets, oil RIGS and so on. The heat treatment hardness, chemical composition, material hardness, advantages and unit price of 34CrMo4 will be introduced below.
1. Heat treatment hardness:
34CrMo4 can obtain different hardness after proper heat treatment. Generally, after flame quenching heat treatment, the hardness of 34CrMo4 can reach 280-320HB; After normalizing treatment, the hardness can reach 229HB; After quenching and tempering, the hardness can reach 217HB. Different hardness treatments can meet the needs of different fields.
2. Chemical composition:
Chemical composition is one of the important factors that determine the properties of materials. The chemical composition of 34CrMo4 is as follows:
- Carbon (C) : 0.3-0.37%
- Silicon (Si) : less than 0.4%
- Manganese (Mn) : 0.6-0.9%
- Phosphorus (P) : less than 0.025%
- Sulfur (S) : less than 0.035%
- Chromium (Cr) : 0.9-1.2%
Molybdenum (Mo) : 0.15-0.3%
3. Material hardness:
Depending on different heat treatment methods, the hardness of 34CrMo4 can vary between 217-320HB. The choice of hardness is based on the requirements of the specific application, such as the needs of strength and toughness.
4. Advantages and performance:
34CrMo4 alloy structural steel has the following advantages:
- Good hardening performance: After proper heat treatment, high hardness and strength can be obtained.
- Excellent heat resistance: able to withstand high temperature and high pressure working conditions.
- Excellent toughness: It still has good plasticity and toughness at high temperatures.
- Hydrogen brittleness resistance: It has good hydrogen brittleness resistance and is suitable for use in some special environments.
5. Unit price:
The unit price of 34CrMo4 alloy structural steel will be affected by market supply and demand, specifications and delivery time and other factors, and may increase when the market demand is strong. The specific unit price needs to consult relevant suppliers or market prices.
In SUMMARY:
34CrMo4 is a kind of alloy structural steel with good performance under high temperature and high pressure working conditions. Its hardness depends on the heat treatment method, and its chemical composition includes carbon, silicon, manganese, phosphorus, sulfur, chromium and molybdenum. Its advantages include hardening properties, heat resistance, toughness and resistance to hydrogen brittleness. The specific unit price needs to be determined according to the market situation.
