P305GH

2023-05-17 17:37:52 来源：钢铁之家阅读量：0

牌号	P305GH
欧标钢号	1.0436
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	碳钢

P305GH 化学元素成分含量(%)

成分	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb	更多
最小值	0.15	-	0.9	-	-	-	-	-	-	-	-	-	Cr+Cu+Mo+Ni≤0.70；碳当量≤0.47
最大值	0.2	0.4	1.6	0.025	0.015	0.3	0.3	0.3	0.08	0.03	0.02	0.01	Cr+Cu+Mo+Ni≤0.70；碳当量≤0.47

碳当量计算

P305GH 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≤35	490~610	≥305	I：≥22，tr/t：≥20	I：≥48，tr/t：≥27
35＜t≤160	490~610	≥280	I：≥22，tr/t：≥20	I：≥48，tr/t：≥27
t≤70	510~630	≥285	I：≥22，tr/t：≥20	I：≥48，tr/t：≥27

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）

N = normalized; QT= quenched and tempered; NT= normalized and tempered. a = air; f = furnaced; o = oil; w = water or water based medium.

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P305GH

热处理制度（仅供参考）