Application of stainless steel in the chemical industry
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Chemical industry
Austenitic stainless steel is used. In an acid medium, steel grades having a high molybdenum content (up to 6%) are preferred. Considering the fact that in industrial chemistry it is necessary to work with aggressive substances, most of the production equipment is made from a particularly resistant stainless steel. Supplier Avlob offers to buy stainless steel at a bargain price. The price is the best in this segment of rental.
The percentage composition of 36NXTU, GOST 5632−72
| P | S | C | Al | Mn | Si | Ti | Cr | Ni | Fe |
|---|---|---|---|---|---|---|---|---|---|
| ≤0.015 | ≤0.015 | ≤0,03 | 0.9−1.2 | ≤0.2 | ≤0.3 | 2.7−3.2 | 11.5−13 | 35−37 | basis |
This dispersion-hardening non-magnetic corrosion-resistant alloy has a temporary resistance to the load of 120−160 kgf / mm 2. At t ° up to 250 ° C it can work in an aggressive environment, it is resistant to corrosion in the gaseous medium and in air. Usually it is used for lightly loaded parts. Doping with silicon, chromium, aluminum allows to withstand the influence of corrosive media, because when heated these substances are able to form protective films on the surface — very strong oxides.
The percentage composition 40ХНЮ, GOST 5632−72
| Ni | P | Mn | S | Fe | Si | C | Mo |
|---|---|---|---|---|---|---|---|
| ≤ 0.02 | 19 -21 | 15 -17 | ≤ 0.02 | 10.74 -18.73 | 1.8 -2.2 | ≤ 0.5 | 39 -41 |
Compared with similar materials, this alloy has a long duration of continuous operation under specific conditions, demonstrates excellent resistance to intergranular corrosion and to stress corrosion cracking,
The percentage composition 12х18Н10Т, GOST 5632−72
| Fe | C | Si | Mn | Ni | S | P | Cr | Cu | Ti |
| basis | ≤0.12 | ≤0.8 | ≤2 | 9 — 11 | ≤0.02 | ≤0.035 | 17 — 19 | ≤0.3 | 5 С — 0.8 |
Austenitic mark. Welded vessels operating in dilute solutions of nitric, acetic, phosphoric acids, solutions of alkalis and salts, and other parts operating under pressure at temperatures from -196 to +600 ° C, and in the presence of corrosive media up to + 350 ° C.
Delivery, price
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