18crnimo7-6是什么材料?热处理数据?
2020-03-14 · 百度认证:上海秉争实业有限公司官方账号
2024-03-25 广告
18CrNiMo7-6合金钢
18CrNiMo7-6材料号:
1.6587
18CrNiMo7-6标准:
EN 10084 : 2008
18CrNiMo7-6特性及应用:
18CrNiMo7-6材料,德国牌号特种钢。具有高抗弯强度、接触疲劳强度,还具有高的硬度和耐磨性,心部具有高的硬度和韧性,综合机械性能较高。广泛应用于变速箱齿轮等。
18CrNiMo7-6化学成分:
碳 C:0.15 - 0.21
硅 Si:≤0.4
锰 Mn:0.5 - 0.9
镍 Ni:1.4 - 1.7
磷 P:≤ 0.025
硫 S:≤ 0.035
铬 Cr:1.5 - 1.8
钼 Mo:0.25 - 0.35
18CrNiMo7-6热处理及力学性能:
18CrNiMo7-6主要规格:
18CrNiMo7-6圆棒、18CrNiMo7-6锻棒、18CrNiMo7-6板、18CrNiMo7-6扁钢、18CrNiMo7-6锻件、18CrNiMo7-6锻环、18CrNiMo7-6加工件、18CrNiMo7-6管、18CrNiMo7-6锻饼
2020-12-04 · 百度认证:上海利佳特殊钢有限公司官方账号
18crnimo7-6是合金结构钢
17CrNiMo6 是德国 DIN 17210-(86)标准的钢号,欧标为18CrNiMo7-6,对应GB的 17Cr2Ni2Mo 17Cr2Ni2Mo不是GB材料,而是JB材料。具体的标准号为:JB∕T 6395-2010大型齿轮、齿圈锻件 17CrNiMo6和20CrMnTi区别: 17CrNiMo6的韧性好得多 碳含量不同,合金元素不同,机械性能不同。热工艺性也不同。 前面的性能要优越一些,后一种变速箱齿轮、差速器齿轮普遍使用。
17CrNiMo6化学成分(质量百分比,%):
碳(C):0.15-0.20 硅(Si):≤0.40, 锰(Mn):0.40-0.60, 硫(S):≤0.035, 磷(P):≤0.035, ,铬(Cr):1.50-1.80, 镍(Ni):1.40-1.70, 钼(Mo):0.25-0.35,
推荐于2018-03-03
0.18%
硅Silicon
0.20%
锰Manganese
0.70%
铬Chromium
1.65%
镍Nickel
1.55%
钼Molybdenum0.30%热处理数据HEAT TREATMENT:
Forging:
Heat to 1150°C Hold till uniform
Minimum forging temperature 850°C
Cool in ashes, warm dry lime or sand
Annealing:
Heat to 830°C – 850°C
Cool in furnace
Normalising:
Heat to 860°C – 890°C
Cool in still air
Stress Relieving:
Heat to 630°C – 650°C
Cool in still air
Carburising:
Pack, Salt or Gas carburise at 900°C – 950°C.
Core Refining:
Heat to 830°C – 870°C
Cool in air or quench in oil or into a salt bath held at 150°C – 200°C and then air cool
Case Hardening:
Heat to 780°C – 820°C
Quench in oil
Single Refine:
Suitable for fine grained steels only
Direct Quench:
Cool from carburising temperature to 820°C – 830°C and cool in air or quench in oil or into salt bath.
Alternatively cool from carburising temperature to room temperature.
Re-heat to 820°C – 830°C and cool in air or quench in oil or into salt bath.
Tempering:
Tempering at 150°C – 200°C will improve the toughness of the case with minimal effect on its hardness and reduce the possibility of grinding cracks.
Heat treatment details for guidance only如果不懂的话用google翻译一下吧,我懒得翻译了
2013-09-16
从渗碳温度冷到 820°C – 830°C 空冷或者油淬或者淬入盐浴炉中
或者选择冷到室温后再次加热到820°C – 830°C后空冷或油淬或者淬入盐浴炉中回火:在150°C – 200°C 温度回火可以提高塑韧性较小的降低硬度,减低产生磨削裂纹的可能以上热处理数据仅供参考。