5CrNiMo鋼具有良好的韌性、強度和高耐磨性，屬熱作模具鋼。它在室溫和500～600℃時的力學性能幾乎相同。在加熱到500℃時，仍能保持住HB300左右的硬度。由于鋼中含有鉬，因而對回火脆性并不敏感。從600℃緩慢冷卻下來以后，沖擊韌性僅稍有降低。

化學成份

碳 C ：0.50～0.60

硅 Si：≤0.40

錳 Mn：0.50～0.80

硫 S ：≤0.030

磷 P ：≤0.030

鉻 Cr：0.50～0.80

鎳 Ni：1.40-1.80

銅 Cu：允許殘余含量≤0.30

鉬 Mo：0.15～0.30

硬度：退火,241～197HB,壓痕直徑3.9～4.3mm

技術參數

淬火后 ：58

淬火溫度℃ ：830～860

交貨狀態 ：退火HB≤241

冷卻劑 ：油Oil

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5CrNiMo steel has good toughness, strength and high wear resistance, and is a hot work die steel. It has almost the same mechanical properties at room temperature and 500 to 600 °C. When heated to 500 ° C, it can still maintain the hardness of HB300. Because steel contains molybdenum, it is not sensitive to temper brittleness. After slowly cooling from 600 ° C, the impact toughness was only slightly reduced.

chemical composition

Carbon C: 0.50~0.60

Silicon Si: ≤ 0.40

Mn: 0.50 to 0.80

Sulfur S :≤0.030

Phosphorus P :≤0.030

Chromium Cr: 0.50~0.80

Nickel Ni: 1.40-1.80

Copper Cu: Allowable residual content ≤ 0.30

Molybdenum Mo: 0.15~0.30

Hardness: Annealed, 241 ~ 197HB, indentation diameter 3.9 ~ 4.3mm

technical parameter

After quenching: 58

Quenching temperature °C: 830 ~ 860

Delivery status: Annealing HB≤241

Coolant : Oil Oil