1、19Mn6的简介：
19Mn6高温结构钢的德标标准号，相当于国标Q345R和欧标P355GH，19Mn6耐高温高压锅炉钢板主要用于电站锅炉汽包卷筒制作，按DIN17155标准的要求组织生产，实物质量达到并超过国外先进水平。
2、19Mn6用途
：高温结构钢的德国标准号，相当于国标Q345R和欧标P355GH，19Mn6耐高温高压锅炉钢板主要用于电站锅炉汽包卷筒制作，按DIN17155标准的要求组织生产，实物质量达到并超过国外先进水平。
3、生产工艺：
电炉冶炼－－LF精炼－－VD真空处理－－模铸－－钢锭加热－－轧制－－正火－－回火－－探伤－－钢板切割检验－－入库。
4、执行标准：
DIN17155
5、耐热钢板：
是指在较高温度下、局部温度可达600°C、在时间负荷情况下仍能显示出特性的钢种。产品形状采用欧洲煤钢共同体标准EURONORM79中的定义。标准中所有钢种，其重量均按比重为7.85千克/分米3计算。标准下的钢号有：UHI、HI、HII、17Mn4、19Mn6、15Mo3 通常以热轧、正火，13CrMo44、10CrMo910以正火、调质热处理。相关规程：（TRB）压力容器技术规程，TRD蒸汽锅炉技术规程，TRG高压气体技术规程。如未规定试验温度，则试验应在300°C下进行。热处理和热加工注意事项详询。抗拉强度350-630牛顿/毫米2，屈服强度：185-310最小值牛顿/毫米2，伸长率17-25%，0-20°冲击最小值27-31J。状态：正火，热处理正火温度890-950°C，消除应力退火520-620°C。
研究19Mn6钢板经过锻造及热处理后能否代替20、25钢用作锅炉锻件.通过对原材料的化学成分、力学性能及金相组织进行分析，确定是否符合标准，然后进行下料、锻造、热处理、取样、经过试验及组织性能分析发现，19Mn6锻件的各项性能指标均能达到检验标准，可以代替20、25钢做锻件使用。并确定19Mn6钢锻件的锻造温度为：加热温度1200 ℃，保温1 min·mm-1，始锻温度1100～1150 ℃，终锻温度≥850 ℃，锻后空冷，锻后采用正火热处理，加热温度为910～940 ℃，保温时间为1 min·mm-1空冷。
1、19Mn6的简介：19Mn6高温结构钢的德标标准号，相当于国标Q345R和欧标P355GH，19Mn6耐高温高压锅炉钢板主要用于电站锅炉汽包卷筒制作，按DIN17155标准的要求组织生产，实物质量达到并超过国外先进水平。
2、执行标准：DIN17155
3、生产工艺：
电炉冶炼－－LF精炼－－VD真空处理－－模铸－－钢锭加热－－轧制－－正火－－回火－－探伤－－钢板切割检验－－入库。
4、19Mn6用途：高温结构钢的德国标准号，相当于国标Q345R和欧标P355GH，19Mn6耐高温高压锅炉钢板主要用于电站锅炉汽包卷筒制作，按DIN17155标准的要求组织生产，实物质量达到并超过国外先进水平。
1. Introduction of 19Mn6
19Mn6 high temperature structural steel German standard number, equivalent to the national standard Q345R and European standard P355GH, 19Mn6 high temperature and high pressure boiler steel plate is mainly used in the production of drum drum of power station boiler, according to the requirements of DIN17155 standard production, physical quality to meet and exceed the foreign advanced level.
2. 19Mn6 purpose
: high temperature structural steel German standard number, equivalent to national standard Q345R and European standard P355GH, 19Mn6 high temperature and high pressure boiler steel plate is mainly used in the production of drum drum of power station boiler, according to the requirements of DIN17155 standard production, physical quality reached and exceeded the foreign advanced level.
3. Production process:
Electric furnace smelting, LF refining, VD vacuum processing, die casting, steel ingot heating, rolling, normalizing, tempering, flaw detection, steel plate cutting inspection, warehousing.
4. Executive standards:
DIN17155
5. Heat-resistant steel plate:
It is a kind of steel which can reach 600°C locally at high temperature and still show its characteristics under time load. The shape of the product is defined in the European coal and steel community standard EURONORM79. The weight of all steel in the standard shall be calculated according to specific gravity of 7.85kg/decimeter 3. Under the standard steel number: UHI, HI, HII, 17Mn4, 19Mn6, 15Mo3 usually hot rolling, normalizing, 13CrMo44, 10CrMo910 normalizing, quenching and tempering heat treatment. Relevant regulations :(TRB) pressure vessel technical regulations, TRD steam boiler technical regulations, TRG high pressure gas technical regulations. If the test temperature is not specified, the test shall be performed at 300°C. Details of heat treatment and hot processing matters needing attention. Tensile strength 350-630 Newton/mm 2, yield strength: 185-310 min Newton/mm 2, elongation 17-25%, 0-20° impact min 27-31j. Status: normalizing, heat treatment normalizing temperature: 890-950°C, stress relief annealing: 520-620°C.
Research 19 mn6 steel plate after forging and heat treatment can instead of 20, 25 steel forgings used as boiler. Through to the raw material chemical composition, mechanical properties and microstructure were analyzed, and determine whether accord with national standard, and then to carry on the blanking, forging, heat treatment, sampling, tested and organization performance analysis found that 19 mn6 forging various performance indexes can meet inspection standards, can be used instead of 20, 25 steel forgings. The forging temperature of 19Mn6 steel forgings is determined as follows: heating temperature 1200 ℃, insulation 1 min·mm-1, initial forging temperature 1100 ~ 1150 ℃, final forging temperature ≥850 ℃, air cooling after forging, heating temperature 910 ~ 940 ℃ and holding time 1 min·mm-1.
