不锈钢的化学成分根据不同牌号和类型有所不同。以下是一些常见不锈钢牌号的化学成分：
201不锈钢
C: ≤0.15%
Si: ≤1.00%
Mn: 5.50-7.50%
P: ≤0.060%
S: ≤0.030%
Ni: 3.50-5.50%
Cr: 16.00-18.00%
202不锈钢
C: ≤0.15%
Si: ≤1.00%
Mn: 7.50-10.00%
P: ≤0.060%
S: ≤0.030%
Ni: 4.00-6.00%
Cr: 17.00-19.00%
301不锈钢
C: ≤0.15%
Si: ≤1.00%
Mn: ≤2.00%
P: 0.035%
S: ≤0.030%
Ni: 6.00-8.00%
Cr: 16.00-18.00%
304不锈钢
C: 0.07%
Si: 1.00%
Mn: 2.00%
P: 0.05%
S: 0.03%
Ni: 8.0-10.50%
Cr: 17.50-19.50%
N: 0.11%
304L不锈钢
C: 0.03%
Si: 1.00%
Mn: 2.00%
P: 0.05%
S: 0.02%
Ni: 8.0-12.00%
Cr: 18.00-20.00%
316不锈钢
C: 0.08%
Si: 0.75%
Mn: 2%
P: 0.045%
S: 0.03%
Ni: 10.00-14.00%
Cr: 16.00-18.00%
Mo: 2%-3%
1.4122不锈钢
C: 0.33%-0.45%
Si: ≤1.00%
Mn: ≤2.00%
P: ≤0.040%
S: ≤0.015%
Cr: 15.00%-17.00%
Mo: 0.80%-1.30%
Ti: ≤0.30%
这些化学成分表提供了不同类型不锈钢的主要元素含量，有助于了解其特性和应用领域。