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Q550NHD是介于普通鋼和不銹鋼之間的低合金鋼系列,Q550NHD屬于焊接耐候鋼,也叫耐大氣腐蝕鋼,分為Q550NHA、Q550NHB、Q550NHC、Q550NHD、Q550NHE五個等級。Q是屈服強度中強字漢語拼音的首位字母,550是鋼的下屈服強度的下限值,單位N/ mm2;NH是耐候漢語拼音的首位字母,D是質量等級,D級是-20℃沖擊。
Q550NHD化學成分、熔煉分析
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Cu |
Nb |
V |
Ti |
Alt |
Zr |
≤0.16 |
≤0.65 |
≤2 |
≤0.025 |
≤0.03 |
0.12~0.65 |
0.3~1.25 |
≤0.3 |
0.2~0.55 |
0.015~0.06 |
0.02~0.12 |
0.02~0.1 |
≥0.02 |
≤0.15 |
成分備注:為改善性能,根據需要可添加Nb、V、Ti、Alt中一種或幾種合金元素;Nb+V+Ti≤0.22。
Q550NHD牌號 | 厚度 | 寬 | 長 | 鋼廠 |
Q550NHD | 8 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 10 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 12 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 14 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 16 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 18 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 20 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 22 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 24 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 26 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 28 | 2200/2500 | 10000/12000 | 舞鋼 |
Q550NHD | 30 | 2200 | 11000 | 舞鋼 |
Q550NHD | 32 | 2200 | 11000 | 舞鋼 |
Q550NHD | 34 | 2200 | 11000 | 舞鋼 |
Q550NHD | 36 | 2200 | 11000 | 舞鋼 |
Q550NHD | 40 | 2200 | 11000 | 舞鋼 |
Q550NHD | 45 | 2200 | 11000 | 舞鋼 |
舞鋼188-3825-3183 |
牌號 | 厚度 | 寬 | 長 | 鋼廠 |
Q550NHC | 8 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 10 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 12 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 14 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 16 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 18 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 20 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 22 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 24 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 26 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 28 | 2000/2200 | 12000 | 舞鋼 |
Q550NHC | 30 | 2200 | 11000 | 舞鋼 |
Q550NHC | 32 | 2200 | 11000 | 舞鋼 |
Q550NHC | 34 | 2200 | 11000 | 舞鋼 |
Q550NHC | 36 | 2200 | 11000 | 舞鋼 |
Q550NHC | 40 | 2200 | 11000 | 舞鋼 |
Q550NHC | 45 | 2200 | 11000 | 舞鋼 |
舞鋼188-3825-3183 |