321
321
As a kind of steel with the inter-granular corrosion resistance enhanced by adding Ti into 304 steel, it is used for heat exchangers and boiler covers, etc.
Features and Applications：
| Type | 321 |
| Features | -- used in particular Applicationss within the sensitizing temperature range.（450 ℃～850 ℃） |
| Applications | --Boiler heat exchanger，furnace components, super heater and afterburner parts, compensators and expansion bellows |
Chemical Composition (wt％)
| Specs | C | Si | Mn | P | S | Cr | Ni | Others |
|
TYPE 321 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.030 |
17.00～9.00
|
9.00～13.00 |
Ti： ≥ 5 × C% |
Mechanical Properties：
| Specs | （ Mpa ） | EL（%） | Hv | |
|
TYPE 321 |
≥205 |
≥520 |
≥40 |
≤200 |
Applications Example：
上一篇：301(L)
下一篇：304N
