SS 90 Deg LR Elbow ASTM A403 UNS S31254-S B16.9 Oil Refineries
SS 90 Deg LR Elbow ASTM A403 UNS S31254-S B16.9 Oil Refineries
What is SS Elbow?
Stainless steel elbow header is a kind of bending parts used to connect the pipes, the main role is to change the flow direction of the pipe or make the pipe connected in different planes. It is made of stainless steel with excellent corrosion resistance, oxidation resistance and high temperature performance, and is widely used in petroleum, chemical industry, shipping, electric power, aerospace and other fields.
Stainless steel elbow is different from carbon steel elbow is mainly the difference in material, the chemical composition it contains will keep the elbow surface for a long time will not rust, will not be corroded.
In the piping system, the elbow is to change the direction of the pipeline fittings. According to the angle, there are 45 ° and 90 ° 180 ° three of the most commonly used, in addition, according to the needs of the project also includes 60 ° and other non-normal angle elbow.
Chemical Composition of ASTM A 403 S31254-S
| Grade | C | Mn | Si | P | S | Cr | Cb | Ni | Fe |
| SS WPS31254 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 20.00 | 10xC – 1.10 | 9.00 - 13.00 | 62.74 min |
| SS WPS31254 | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 8xC – 1.10 | 9.0 -13.0 | 63.72 min |
Mechanical Properties of ASTM A403 S31254-S
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Equivalent Grades of ASTM A403 S31254-S
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS WP321 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
Application
car headers
machinery parts
screws
food handling equipment
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