18MnMoNi5-5

2023-05-17 17:29:35 来源：钢铁之家阅读量：0

牌号	18MnMoNi5-5
欧标钢号	1.6308
对应标准	EN 10222-2-2017 压力用途用钢制锻件第2部分具有高温特性的铁素体和马氏体钢 Steel Forgings for Pressure Purposes. Part 2:Ferritic and Martensitic Steels with Specified Elevated Temperature Properties
归类	合金钢

18MnMoNi5-5 化学元素成分含量(%)

成分	C	Si	Mn	P	S	Ni	Mo	V
最小值	-	-	1.15	-	-	0.5	0.45	-
最大值	0.2	0.4	1.55	0.025	0.01	0.8	0.55	0.03

碳当量计算

18MnMoNi5-5 机械性能

厚度 t mm	抗拉强度 σ_b Mpa	屈服点 σ_s Mpa	断后伸长率或延伸率 δ %	冲击吸收能量 KV2 J
t≤200	550~670	≥400	≥20	I：≥56，tr/t：≥40

① I = longitudinal to main forging directions；tr = transverse to main forging directions；t = tangential.
② Maximum room temperature for the impact test is 20 °C. By option, impact testing may be carried out at 0°C, with the condition to fulfil the impact values as stated in this table.
③ Until the yield point criteria are harmonized in the various national codes, determination of ReH may be replaced by determination of Rp0.2. In this case Rp0.2 values are 10 MPa lower for ReH values up to 355 MPa and 15 MPa lower for ReH values greater than 355 MPa.

热处理制度（仅供参考）

QT= quenched and tempered. a = air; f = furnaced; w = water or water based medium.

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18MnMoNi5-5

热处理制度（仅供参考）