HASTELLOYC4jẹ alloy ti o ni nickel, chromium, ati molybdenum. O ti wa ni gíga bi awọn julọ wapọ alloy fun koju ipata. Eleyi alloy afihan resistance si awọn Ibiyi ti ọkà aala precipitates nigba ti tunmọ si alurinmorin ooru, ṣiṣe awọn ti o dara fun orisirisi kemikali ilana awọn ohun elo ninu awọn oniwe-welded ipinle. Ni afikun, AlloyC4ṣe afihan atako to dayato si pitting, idaamu-ibajẹ wahala, ati awọn oju-aye oxidizing titi di 1900°F. O ni atako alailẹgbẹ si ọpọlọpọ awọn agbegbe kemikali.
Awọn ohun elo:
1.Paper ile ise: Digesters ati Bìlísì eweko.
Awọn agbegbe gaasi 2.Sour: Awọn ohun elo ti o farahan si gaasi ekan.
3.Flue-gas desulfurization eweko: Awọn ohun elo ti a lo ninu awọn ohun elo afẹfẹ-gas desulfurization.
4.Sulfuric acid agbegbe: Evaporators, ooru exchangers, Ajọ, ati mixers lo ninu sulfuric acid agbegbe.
5.Sulfuric acid reactors: Awọn ohun elo ti a ṣiṣẹ ni awọn ohun elo sulfuric acid.
6.Organic kiloraidi ilana: Awọn ohun elo ti a lo ninu ilana chloride Organic.
7.Halide tabi acid catalyst awọn ilana: Awọn ohun elo ti a lo ni awọn ilana ti o lo awọn ohun elo ti o niiṣedede tabi acid.
Ipele | C276 | C22 | C4 | B3 | N | ||
Kemikali Tiwqn (%) | C | ≤0.01 | ≤0.015 | ≤0.015 | ≤0.02 | ≤0.01 | 0.04-0.08 |
Mn | ≤1 | ≤0.5 | ≤1 | ≤1 | ≤3 | ≤1 | |
Fe | 4-7 | 2-6 | ≤3 | ≤2 | ≤1.5 | ≤5 | |
P | ≤0.04 | ≤0.02 | ≤0.04 | ≤0.04 | – | ≤0.015 | |
S | ≤0.03 | ≤0.02 | ≤0.03 | ≤0.03 | – | ≤0.02 | |
Si | ≤0.08 | ≤0.08 | ≤0.08 | ≤0.1 | ≤0.1 | ≤1 | |
Ni | isinmi | isinmi | isinmi | isinmi | ≥65 | isinmi | |
Co | ≤2.5 | ≤2.5 | ≤2 | ≤1 | ≤3 | ≤0.2 | |
Ti+Cu | – | – | ≤0.7 | – | ≤0.4 | ≤0.35 | |
Al+Ti | – | – | – | – | ≤0.5 | ≤0.5 | |
Cr | 14.5-16.5 | 20-22.5 | 14-18 | ≤1 | ≤1.5 | 6-8 | |
Mo | 15-17 | 12.5-14.5 | 14-17 | 26-30 | ≤28.5 | 15-18 | |
B | – | – | – | – | – | ≤0.01 | |
W | 3-4.5 | 2.5-3.5 | – | – | ≤3 | ≤0.5 | |
V | ≤0.35 | ≤0.35 | – | 0.2-0.4 | – | ≤0.5 |