|
|
牌号（代号） |
C |
Si |
Mn |
P |
S |
Ni |
Cr |
N |
|
0Cr17Ni9(304) |
≤0.07 |
≤ 1.00 |
≤ 2.00 |
≤0.035 |
≤0.030 |
8.00-11.00 |
17.00-19.00 |
- |
|
1Cr17Ni9(302) |
≤0.15 |
≤ 1.00 |
≤ 2.00 |
≤0.035 |
≤ 0.030 |
8.00-10.00 |
17.00-19.00 |
- |
|
0Cr18Ni7(HH304) |
≤ 0.09 |
≤1.00 |
≤ 2.00 |
≤0.035 |
≤ 0.030 |
7.00-10.00 |
15.00-19.00 |
- |
|
1Cr15Mn8Ni3N(HH202) |
≤0.15 |
≤1.00 |
≤7.50-12.00 |
≤0.060 |
≤0.030 |
2.50-5.00 |
13.00-17.00 |
≤0.25 |
|
1Cr14Mn10Ni2N(HH201) |
≤0.15 |
≤1.00 |
≤7.00-15.00 |
≤0.060 |
≤0.030 |
0.60-2.50 |
12.00-16.00 |
≤ 0.25 |
|
注:经供需双方商定,可使用其它化学成分的钢材. |
|
供货状态 |
外径或边长D |
允许偏差 |
|
磨光\抛光状态(SB、SP) |
≤25 |
±0.20 |
|
＞25-40 |
±0.30 |
|
＞40-50 |
±0.36 |
|
＞50-60 |
±0.40 |
|
＞60-70 |
±0.46 |
|
＞70-80 |
±0.50 |
|
＞80 |
±0.55%D |
|
未磨光\喷砂状态(SNP、SA) |
≤25 |
±0.30 |
|
＞2550 |
±0.50 |
|
＞50 |
±1.0%D |
|
钢材牌号(代号) |
屈服强度óp0.2
MPa |
抗拉强度ób
MPa |
断后伸长率ó5
% |
硬度HB |
|
0Cr17Ni9(304)
1Cr17Ni9(302)
0Cr17Ni7(HH304) |
≥205 |
≥520 |
≥35 |
≥190 |
|
1Cr15Mn8Ni3N(HH202)
1Cr14Mn10Ni1N(HH201) |
≥220 |
≥550 |
≥25 |
≥250 |
|
注:其它牌号钢材的力学性能,由供需双方商定. |
|
