Product description
Specifications UNS S32550 fittings
1.ASTM A815 F51 F53 F55 F61 pipe fittings
2. UNS S31803 S32750 S32550 S32250 fittings
3. good quality
UNS S32550 fittings UNS S32550 S32250 Benefits § High Strength § High resistance to pitting, crevice corrosion resistance § High resistance to stress corrosion cracking, fatigue and erosion § Excellent resistance to Chloride stress corrosion cracking § High Thermal conductivity § Low coefficient of thermal expansion § Low thermal expansion and higher heat conductivity than Austenitic steels § Good Sulfide stress corrosion resisitance § High energy absorption § Good workability and weldability Applications Pipe – ASTM A790 The method of manufacture can be either seamless or automatic welding, with no addition of filler metal. Pipe may be hot or cold finished but must always be furnished in the heat treated condition. BUTT WELD – ASTM A815 This class covers the class of WP, made up of 4 categories and meet the requirements of ANSI B16.9. Pressure ratings are the same compatability of matching pipe. § WP-S : Seamless Construction § WP-W : Welded Construction where construction welds are radiographed § WP-WX : Welded Construction where all welds are radiographed § WP-WU : Welded Construction where al welds are Ultrasonically Tested. Flanges ASTM A182 Material forged as near as practical to the specified size and shape. Forged or Rolled Bar may be used without additional hot working for small cylindrical shaped parts below 4” NB. Flanges of any description cannot be machined directly from Forged or Rolled Bar. Technical Details
Alloy | C | Cr | Cu | Mn | Mo | N | Ni | P | S | Si |
S32550 | 0.04 max | 24.0 - 27.0 | 1.50 - 2.50 | 1.5 max | 2.9 - 3.9 | 0.10 - 0.25 | 4.50 - 6.50 | 0.04 max | 0.030 max | 1.00 max |
Mechanical Properties
Yield Strength | Tensile Strength | Elongation (Minimum) | Reduction of Area (Min) | Hardness (Max) |
(Ksi) | (Mpa) | (Ksi) | (Mpa) | | | (Bhn) |
79.8 | 550 | 110.3 | 760 | 25 | | 270 |