SA738Gr.B钢板锅炉汽包用钢板质量和性能分析|景隆钢铁杨辰推荐

一、.B钢板简介.B钢板属于中低温压力容器用热处理钢板，.B钢板有着良好的低温冲击性能和高温拉伸性能，较好的焊接性能。广泛应用于第三代和核电站安全壳和结构模块。二、.B钢板的交货状态和执行标准交货状态：调质（回火+淬火）执行标准：.B钢板是美标钢板，执行美标ASME标准。三、.B钢板的化学成分（熔炼分析%）C≤0.20；Mn≤0.90-1.50；P≤0.008；S≤0.005；Si≤0.15-0.55；Cu≤0.35；Ni≤0.60；Cr≤0.30；Mo≤0.30；Nb≤0.08；Ti≤0.08；V≤0.08；钢板牌号+Ti+.B≤0.20≤0.90-1.50≤0.008≤0.0050.15-0.55≤0.35≤0.60≤0.30≤0.30≤0.08四、.B钢板的工艺路线工艺路线：转炉冶炼——LF精炼——VD真空脱气——270mm×断面连铸——加热——双机架轧制。五、.B钢板舞阳钢厂产的特点：舞阳钢厂生产的.B钢板最大厚度可达106mm，冲击功的最低温度达到-45℃、无塑形转变温度（NDT）达到-30℃以下。

六、.B钢板应用：广泛应用于第三代和核电站安全壳和结构模块。

I. to . B steel plate

. B steel plate to heat steel plate for and low . . B steel plate has good low and high as well as good .It is used in and of the third and power .

Ii. and of .B steel plate

: ( + )

: . B steel plate is steel which ASME .

Iii. of . B steel plate ( %)

C 0.20 or less;

Mn were 0.90 1.50;

P 0.008 or less;

S 0.005 or less;

Si were 0.15 0.55;

Cu 0.35 or less;

Ni 0.60 or less;

Cr 0.30 or less;

Mo 0.30 or less;

Nb 0.08 or less;

Ti 0.08 or less;

V 0.08 or less;

Steel plate C Mn P S Si Cu Ni Cr Mo Nb+Ti+V

SA - 738 gr. B were 0.20 0.90 1.50 0.008 0.005 or less or less or less 0.15 0.55 0.35 0.60 0.30 0.30 0.08 or less or less or less or less or less

Iv. route of . B steel plate

route: -- LF -- VD -- 270mm× -- -- stand .

of . B steel plate by Steel Plant: the of . B steel plate by Steel plant can be up to the of -45℃, and the (NDT) below -30℃.

of .B steel plate: it is used in and of the third and power .