牌号 | 公称厚度amm | 用途 | 产品类别 |
SPHC | ≤18.0 | 一般用 | 热轧钢带 |
DD11 | ≤12.0 | ||
SPHD | ≤16.0 | 热轧钢板 | |
冲压用 | 热轧平整钢带 | ||
DD12 | ≤12.0 | ||
SPHE、SPHF | ≤12.0 | 热轧纵切钢带 | |
DD13、DD14 | ≤12.0 | 深冲用 | 热轧酸洗钢带 |
BRC1、BRC2、BRC3 | ≤8.0 | 热轧酸洗钢板 | |
IF HR1、IF HR2、IF HR3 | ≤6.0 | IF 钢,冷压延用 | |
a对于热轧酸洗表面钢板及钢带,IF HR1、IF HR2 和 IF HR3 公称厚度 t≤6.0mm,其他牌号公称厚度t≤8.0mm。 |
牌号 | 化学成分a、b(质量分数)/ % | |||||||
C | Si | Mn | P | S | Alt | Ti | N | |
DD11 | ≤0.12 | ≤0.05 | ≤0.60 | ≤0.030 | ≤0.030 | ≥0.010 | - | - |
DD12 | ≤0.10 | ≤0.05 | ≤0.45 | ≤0.025 | ≤0.020 | ≥0.010 | - | - |
DD13 | ≤0.08 | ≤0.05 | ≤0.40 | ≤0.025 | ≤0.020 | ≥0.010 | - | - |
DD14 | ≤0.08 | ≤0.05 | ≤0.35 | ≤0.025 | ≤0.020 | ≥0.010 | - | - |
SPHC | ≤0.12 | ≤0.05 | ≤0.60 | ≤0.030 | ≤0.030 | ≥0.010 | - | - |
SPHDc | ≤0.10 | ≤0.05 | ≤0.45 | ≤0.025 | ≤0.020 | ≥0.010 | - | - |
SPHE | ≤0.08 | ≤0.05 | ≤0.40 | ≤0.025 | ≤0.020 | ≥0.010 | - | - |
SPHF | ≤0.08 | ≤0.05 | ≤0.35 | ≤0.025 | ≤0.020 | ≥0.010 | - | - |
BRC1 | ≤0.08 | ≤0.05 | ≤0.40 | ≤0.025 | ≤0.020 | ≥0.010 | - | - |
BRC2 | ≤0.05 | ≤0.05 | ≤0.40 | ≤0.025 | ≤0.020 | ≥0.010 | - | - |
BRC3 | ≤0.03 | ≤0.05 | ≤0.30 | ≤0.025 | ≤0.020 | ≥0.010 | - | - |
IF HR1 | ≤0.008 | ≤0.04 | ≤0.30 | ≤0.020 | ≤0.020 | ≥0.010 | ≤0.08 | ≤0.005 |
IF HR2 | ≤0.005 | ≤0.03 | ≤0.30 | ≤0.020 | ≤0.020 | ≥0.010 | ≤0.08 | ≤0.004 |
IF HR3 | ≤0.003 | ≤0.03 | ≤0.20 | ≤0.020 | ≤0.020 | ≥0.010 | ≤0.08 | ≤0.004 |
a由供方选择,可添加特殊元素。 b钢中残余元素含量Cu≤0.20%,Cr≤0.15%,Ni≤0.15%。但在供方能保证时,可不进行这些元素的化学分析。 c当厚度t>14mm,Mn 含量上限可提高到 0.50%。 |