Alloys Stainless Steel Sheets 317 and 317L are considerably more resistant than conventional chromium-nickel types to solutions of sulfuric acid.The higher chromium contents of 317LMN and Alloy Stainless Steel Sheets 317 also provide superior resistance to intergranular attack.The combination of molybdenum and nitrogen of Stainless Steel Sheets 317L are particularly effective in enhancing resistance to pitting and crevice corrosion, especially in process streams containing acids, chlorides, and sulfur compounds at elevated temperatures.
Chemistry Data :
Carbon 0.08 max
Chromium 18 - 20
Iron Balance
Manganese 2 max
Molybdenum 3 - 4
Nickel 11 - 15
Phosphorus 0.045 max
Silicon 1 max
Sulphur 0.03 max
Shipment:FOB&CFR&CIF
Terms of Payment:30%T/T at least in advance,the balance against the copy of B/L
Delivery Time:Negotiation with customer
Technique:Hot rolled&cold rolled
Terms of Payment:30%T/T at least in advance,the balance against the copy of B/L
Delivery Time:Negotiation with customer
Technique:Hot rolled&cold rolled
Corrosion Resistance in Boiling Solutions and ASTM Tests | ||||
Test Solution | Corrosion Rate in Mils per Year (mm/y) for Cited Alloys | |||
Alloy 316L | Alloy 317L | Alloy 317LMN | Alloy 276 | |
20% Acetic Acid | 0.12 (<0.01) | 0.48 (0.01) | 0.12 (<0.01) | 0.48 (0.01) |
45% Formic Acid | 23.41 (0.60) | 18.37 (0.47) | 11.76 (0.30) | 2.76 (0.07) |
10% Oxalic Acid | 48.03 (1.23) | 44.90 (1.14) | 35.76 (0.91) | 11.24 (0.28) |
20% Phosphoric Acid | 0.06 (0.02) | 0.72 (0.02) | 0.24 (<0.01) | 0.36 (0.01) |
10% Sulfuric Acid | 635.7 (16.15) | 298.28 (7.58) | 157.80 (4.01) | 13.93 (0.35) |
10% Sodium Bisulfate | 71.57 (1.82) | 55.76 (1.42) | 15.60 (0.40) | 2.64 (0.07) |
50% Sodium Hydroxide | 77.69 (1.92) | 32.78 (0.83) | 85.68 (2.18) | 17.77 (0.45) |
ASTM A262 Practice B (FeSO4H2SO4) | 26.04 (0.66) | 20.76 (0.53) | 17.28 (0.44) | 264.5 (6.72) |
ASTM A262 Practice C (65% HNO3) | 22.31 (0.56) | 19.68 (0.50) | 16.32 (0.42) | 908.0 (23.06) |
ASTM A262 Practice E (Cu•CUSO4•H2SO4) | Pass | Pass | Pass | Pass |
