STAINLESS STEEL 316 / S31600 / 1.4401
| Designations: |
France : Afnor Z 6 Cnd 17.11 Germany :Din 1.4401 Italy : Uni X 5 Crnimo 17 12 Japan : Jis Suh 309, Jis Sus 316, Jis Sus Y 316 United Kingdom : Ss 2347 United States : B.S. 316 S 16, B.S. 316 S 18, B.S. 316 S 25, B.S. 316 S 26, B.S. 316 S 30, B.S. 316 S 40, B.S. 316 S 41, B.S. En. 58 H United States: Ams 5524, Ams 5573, Ams 5648, Ams 5690, Ams 5691, Asme Sa182, Asme Sa193, Asme Sa194, Asme Sa213, Asme Sa240, Asme Sa249, Asme Sa312, Asme Sa320, Asme Sa358, Asme Sa376, Asme Sa403, Asme Sa409, Asme Sa430, Asme Sa479, Asme Sa688, Astm A167, Astm A182, Astm A193, Astm A194, Astm A213, Astm A240, Astm A249, Astm A269, Astm A276, Astm A312, Astm A313, Astm A314, Astm A320, Astm A358, Astm A368, Astm A376, Astm A403, Astm A409, Astm A430, Astm A473, Astm A478, Astm A479, Astm A580, Fed Qq-s-763, Fed Qq-s-766, Fed Qq-w-423, Mil Spec Mil-s-5059, Mil Spec Mil-s-862, Sae 30316, Sae J405 (30316), Uns S31600 |
Industries that use 17-4 PH include:
Stainless Steel 316 Is The Standard Molybdenum-bearing Grade, Second In Importance To Ss 304 Amongst The Austenitic Stainless Steels. The Molybdenum Gives Ss 316 Better Overall Corrosion Resistant Properties Than Stainless Steel 304, Particularly Higher Resistance To Pitting And Crevice Corrosion In Chloride Environments. Stainless Steel 316 Has Excellent Forming And Welding Characteristics. It Is Readily Brake Or Roll Formed Into A Variety Of Parts For Applications In The Industrial, Architectural, And Transportation Fields. Ss 316 Also Has Outstanding Welding Characteristics. Post-weld Annealing Is Not Required When Welding Thin Sections.
Ss 316l, The Low Carbon Version Of Ss 316 And Is Immune From Sensitisation (Grain Boundary Carbide Precipitation).Ss 316h, With Its Higher Carbon Content Has Application At Elevated Temperatures, Same As Ss 316ti Which Is A Titanium Stabilised Grade .Ss 316n Is Nitrogen Enhanced With Greater Strength Than SS 316.
Availability : Alloy 316 is available as round / flat / sheet /hexagonal plate/ square /coil / pipe & fittings.
Chemical Composition
| SS | 316 | 316H | 316N | 316L | 316Ti |
|---|---|---|---|---|---|
| Ni | 10 – 14 | 10 – 14 | 10 – 14 | 10 – 14 | 10 – 14 |
| Fe | Balance | ||||
| Cr | 16 – 18 | 16 – 18 | 16 – 18 | 16 – 18 | 16 – 18 |
| Mo | 2 – 3 | 2 – 3 | 2 – 3 | 2 – 3 | 2 – 3 |
| C | 0.08 max | 0.10 max | 0.03 max | 0.03 max | 0.08 max |
| Si | 0.75 max | 0.75 max | 0.75 max | 0.75 max | 0.75 max |
| Mn | 2 max | 2 max | 2 max | 2 max | 2 max |
| P | 0.045 max | 0.045 max | 0.045 max | 0.045 max | 0.045 max |
| S | 0.030 max | 0.030 max | 0.030 max | 0.030 max | 0.030 max |
| N | 0.1 max | 0.1 max | 0.1 max | 0.1 max | |
| Ti | 5 X % (C + N) | ||||