Chemical resistance of NIROSTA steels - Rovasta
Chemical resistance of NIROSTA steels - Rovasta Chemical resistance of NIROSTA steels - Rovasta
Chemical resistance of NIROSTA ® steels 20 Corrosive agent Formula Condition Concentration Lactic acid CH 3 CH(OH)COOH 80 % Lactic acid CH 3 CH(OH)COOH 80 % Lactic acid CH 3 CH(OH)COOH concentrated Lactic acid CH 3 CH(OH)COOH concentrated Lead 1 ) Pb molten Lead acetate (sugar of lead) Pb(CH 3 COO) 2 · 3H 2 O all concentrations Lead acetate (sugar of lead) Pb(CH 3 COO) 2 · 3H 2 O all concentrations Lead nitrate Pb(NO 3 ) 2 Lemon juice Linseed oil (+3% H 2 SO 4 ) Linseed oil (+3% H 2 SO 4 ) Liqueurs Lubricating oils see oil Lysoform Lysol Magnesium carbonate MgCO 3 all concentrations Magnesium chloride MgCI 2 · 6H 2 O 10% Magnesium chloride MgCI 2 · 6H 2 O 30% Magnesium sulphate (Epsom salts) MgSO 4 · 7H 2 O cold saturated Magnesium sulphate (Epsom salts) MgSO 4 · 7H 2 O cold and hot saturated Maleic acid (CHCOOH) 2 50 % Malic acid COOHCH 2 CHOHCOOH up to 50 % Malic acid COOHCH 2 CHOHCOOH up to 50 % Malic acid COOHCH 2 CHOHCOOH up to 50 % Manganese chloride MnCI 2 · 4H 2 O 10% Manganese chloride MnCI 2 · 4H 2 O 50% Manganese sulphate MnSO 4 · 7H 2 O Meat Mercuric acetate Hg(CH 3 COO) 2 cold saturated Mercuric acetate Hg(CH 3 COO) 2 hot saturated Mercuric chloride HgCI 2 (sublimate) 0.10 % Mercuric chloride HgCI 2 (sublimate) 0.10 % Mercuric chloride HgCI 2 (sublimate) 0.70 % Mercuric chloride HgCI 2 (sublimate) 0.70 % Mercurous nitrate (HgNO 3 ) 2 · 2H 2 O all concentrations Mercury Hg Mercury cyanide Hg(CN) 2 all concentrations Methyl alcohol CH 3 OH all concentrations Methyl aldehyde see formaldehyde Methyl chloride 2 ) CH 3 CI anhydrous Methylene chloride 2 ) CH 2 CI 2 anhydrous 1 ) Iron or iron alloys are not attacked by lead. Even high-alloy steels are, however, attacked by lead oxide at points exposed to the atmoshere. 2 ) Even if only traces of hydrochloric acid (HCI) are formed by moisture, there is a danger of pitting, crevice and stress corrosion cracking.
0 = resistant to general corrosion 1 = slight susceptibility to general corrosion 2 = low resistance to general corrosion 3 = no resistance to general corrosion L = risk of pitting, crevice corrosion or stress-corrosion cracing Classification of NIROSTA ® -/ASTM grades by group 4000/410 S 4002/405 4003/A240… 4006/410 4016/430 4021/(420) 4057/431 4024/(410) 4120 4028/(420) 4305/303 4031/(420) 4427/316 F 4034/(420) 4509/441 4313 4510/439 4512/409 4511 4589 4520 4113/434 4521/444 4568/631 4301/304 4303/(305) 4306/304 L 4307/304 L 4310/(301) 4311/304 LN 4315/304 N 4318/301 LN 4541/321 4544 4546 4550/347 4401/316 4404/316 L 4429/316 LN 4435/316 L 4436/316 4438/317 L 4439 4462 4501 4561/316 Ti 4571/316 Ti 4465 4539 4565 S Temperature Gr. 1 Gr. 2 Gr. 3 Gr. 4 Gr. 5 4465 4539 4565 S 21 20°C 1 1 0 0 0 0 0 0 boiling 3 2 2 2 1 1 1 1 20°C 1 1 0 0 0 0 0 0 boiling 3 2 2 2 1 1 1 1 600 °C 1 20°C 0 0 0 0 0 0 0 boiling 1 0 0 0 0 0 0 0 20°C 1 0 0 0 0 0 0 0 20°C 0 0 0 0 0 20°C 0 0 0 0 0 0 0 0 200°C 1 0 0 0 0 0 0 0 0 0 0 0 0 0 boiling 0 0 0 0 0 0 0 0 boiling 0 0 0 0 0 0 0 0 20°C 0 0 0 0 0 0 0 0 20°C 2 L 1 L 0 L 0 L 0 L 0 L 0 L 0 20°C 2 L 1 L 0 L 0 L 0 L 0 L 0 L 0 20°C 2 1 0 0 0 0 0 0 boiling 0 0 0 0 0 100°C 2 1 1 0 0 0 0 0 20°C 1 0 0 0 0 0 0 0 60°C 2 2 1 0 0 0 0 0 100°C 3 3 2 1 0 0 0 0 boiling 0 L 0 L 0 L 0 L 0 L boiling 0 0 L 0 L 0 L 0 L 20°C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20°C 0 0 0 0 0 0 0 0 boiling 0 0 0 0 0 0 0 20°C 2 L 1 L 0 L 0 L 0 L 0 0 0 boiling 3 L 2 L 1 L 1 L 0 L 0 L 0 L 0 20°C 2 L 2 L 1 L 1 L 1 L 0 0 0 boiling 3 L 3 L 2 L 2 L 2 L 1 L 0 L 0 L boiling 0 0 0 0 0 0 0 0 20 °C and 50 °C 0 0 0 0 0 0 0 0 20°C 2 2 0 0 0 0 0 20 °C and 65 °C 0 0 0 0 0 0 0 0 boiling 0 0 0 0 0 0 0 0 boiling 0 0 0 0 0 0 0 0
- Page 1 and 2: KRUPP THYSSEN NIROSTA Chemical resi
- Page 3 and 4: The corrosion mechanism is largely
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<strong>Chemical</strong> <strong>resistance</strong> <strong>of</strong> <strong>NIROSTA</strong> ® <strong>steels</strong><br />
20<br />
Corrosive agent Formula Condition Concentration<br />
Lactic acid CH 3 CH(OH)COOH 80 %<br />
Lactic acid CH 3 CH(OH)COOH 80 %<br />
Lactic acid CH 3 CH(OH)COOH concentrated<br />
Lactic acid CH 3 CH(OH)COOH concentrated<br />
Lead 1 ) Pb molten<br />
Lead acetate (sugar <strong>of</strong> lead) Pb(CH 3 COO) 2 · 3H 2 O all concentrations<br />
Lead acetate (sugar <strong>of</strong> lead) Pb(CH 3 COO) 2 · 3H 2 O all concentrations<br />
Lead nitrate Pb(NO 3 ) 2<br />
Lemon juice<br />
Linseed oil (+3% H 2 SO 4 )<br />
Linseed oil (+3% H 2 SO 4 )<br />
Liqueurs<br />
Lubricating oils<br />
see oil<br />
Lys<strong>of</strong>orm<br />
Lysol<br />
Magnesium carbonate MgCO 3 all concentrations<br />
Magnesium chloride MgCI 2 · 6H 2 O 10%<br />
Magnesium chloride MgCI 2 · 6H 2 O 30%<br />
Magnesium sulphate (Epsom salts) MgSO 4 · 7H 2 O cold saturated<br />
Magnesium sulphate (Epsom salts) MgSO 4 · 7H 2 O cold and hot saturated<br />
Maleic acid (CHCOOH) 2 50 %<br />
Malic acid COOHCH 2 CHOHCOOH up to 50 %<br />
Malic acid COOHCH 2 CHOHCOOH up to 50 %<br />
Malic acid COOHCH 2 CHOHCOOH up to 50 %<br />
Manganese chloride MnCI 2 · 4H 2 O 10%<br />
Manganese chloride MnCI 2 · 4H 2 O 50%<br />
Manganese sulphate<br />
MnSO 4 · 7H 2 O<br />
Meat<br />
Mercuric acetate Hg(CH 3 COO) 2 cold saturated<br />
Mercuric acetate Hg(CH 3 COO) 2 hot saturated<br />
Mercuric chloride HgCI 2 (sublimate) 0.10 %<br />
Mercuric chloride HgCI 2 (sublimate) 0.10 %<br />
Mercuric chloride HgCI 2 (sublimate) 0.70 %<br />
Mercuric chloride HgCI 2 (sublimate) 0.70 %<br />
Mercurous nitrate (HgNO 3 ) 2 · 2H 2 O all concentrations<br />
Mercury<br />
Hg<br />
Mercury cyanide Hg(CN) 2 all concentrations<br />
Methyl alcohol CH 3 OH all concentrations<br />
Methyl aldehyde<br />
see formaldehyde<br />
Methyl chloride 2 ) CH 3 CI anhydrous<br />
Methylene chloride 2 ) CH 2 CI 2 anhydrous<br />
1<br />
) Iron or iron alloys are not attacked by lead. Even high-alloy <strong>steels</strong> are, however, attacked by lead oxide at points exposed to the atmoshere.<br />
2<br />
) Even if only traces <strong>of</strong> hydrochloric acid (HCI) are formed by moisture, there is a danger <strong>of</strong> pitting, crevice and stress corrosion cracking.
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