f12马氏体耐热钢相当于中国的什么型号

2025-03-23 14:29:54
推荐回答(3个)
回答1:

f12马氏体耐热钢相近国内材质是2Cr12MoV。

高合金钢X20CrMoV121是按照德国标准DIN17175的标准生产的耐热钢,简称F12。它是属于马氏体型耐热钢,由于其在空冷条件下有很大的淬硬性,冷裂纹倾向很大;焊接接头的拘束越大或钢中的含碳量越高,那么冷裂纹的倾向越大;加之其导热性差,焊后残余应力较大,还有焊缝内氢的作用,所以,可焊性差,冷裂纹倾向很大。该种钢可以耐使用温度达650℃。在进口火电高温高压机组管道中应用较广,一般处于调质状态,其抗拉强度达685~833MPa。

德国标准DIN X20CrMoV12-1数据表、DIN X20CrMoV12-1化学成分、炼钢机械性能、DIN X20CrMoV12-1电渣重熔、初轧、锻造、热轧、热处理、矫直、超声波测试、冷加工或机加工的技术规范。我们还拥有先进的精密加工设备用于进一步加工。请告诉我们你的询问。

数据表-DIN X20 crmov 11-1 & X20 crmov 12-1 & W-Nr 1.4922

材料类别:高温结构钢

产品说明

合金 钢架具有更高的屈服强度,抗张强度,持久力,收益率(一般约为0.85)足够的可塑性和韧性。

这种钢的合金元素浓度为相当高,主要是耐腐蚀钢、耐热钢、耐磨钢等特种钢物理和化学性质。合金结构钢比碳素结构钢具有更好的机械性能钢,特别是热处理的高性能。

该合金通常由电弧炉/真空蒸馏炉/低频炉生产,如果特殊目的需要,随后进行电渣精炼。

根据买方的要求,棒材和锻件根据不同的等级进行超声波检查。

棒材通常在退火条件下供应光亮。

最终热处理-热处理/质量分数

材料规范书

德国工业标准EN 10028-2 (2003),德国工业标准17755 (1983)

化学成分(重量%)

C (%): 0.17 ~ 0.23

Si (%): ≤ 0.50

Mn (%): ≤ 1.00

P (%)≤: 0.030

S (%)≤: 0.010

铬(%): 10.0 ~ 12.5

钼(%): 0.80 ~ 1.20

镍(%): 0.30 ~ 0.80

V (%): 0.25 ~ 0.35 

机械性能-热加工、热处理和硬度

热加工温度/℃: 1100~850

热处理温度/℃|退火/正火:700~780

热处理温度/℃|淬火:1020~1070油或空气

热处理温度/℃|回火:700~760

HBW:205~250

抗拉强度,(≥)|σb/MPa: 690~830

屈服强度,(≥)|σs/MPa: 490

伸长率,(≥)|δ5(%): 16.0

影响,(≥)|AKV/J: 41               

高温下的机械性能

屈服强度σ0.2≥/MPa|200℃: 461

屈服强度σ0.2≥/MPa|300℃: 392

屈服强度σ0.2≥/MPa|350℃: 373

屈服强度σ0.2≥/MPa|400℃: 353

屈服强度σ0.2≥/MPa|450℃: 314

屈服强度σ0.2≥/MPa|500℃: 265

可用形状

黑条/扁条/方条/管/钢带/薄板

光亮剥皮+抛光,无心磨削

锻造环、管、管套、圆盘、轴

典型应用

合金结构钢广泛应用于船舶、车辆、飞机、导弹、武器、铁路、桥梁,压力容器、机床、截面尺寸较大的机械部件等。

机械齿轮、齿轮轴、主轴、阀杆

机械零件.连杆、螺栓和螺母

多直径轴

压力容器、无缝管道



回答2:

F12属于美标锻制马氏体耐热钢,执行标准:ASTM A182/A182M-2015

F12在高温下具有较高的热强性(δb≥440MPa)和抗氧化性,并具有一定的抗氢腐蚀能力

F12化学成分如下图:

从化学成分看,F12相当于国内牌号:15CrMo

回答3:

AISI标准中碳素钢和合金钢牌号表示方法 AISI标准中,碳素钢和合金钢牌号的表示方法基本相同。
大都采用四位阿拉伯数字表示,间或在中间或末尾加入字母。
例如:1005,94B15,3140等。
四位数字中的前两位数字表示钢种类型极其主要合金元素含量。

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