ASTM A815 S31803 90DEG Elbows Detail Information
| Product Item | 90 Degree Pipe Elbow |
|---|---|
| Size | 12″ |
| Schedule / Wall Thickness | SCH 80S |
| Angle | 90 DEG |
| Material Grade | ASTM A815 UNS S31803 |
| End Connection | Bevel End |
| Radius Type | LR |
| Standard | ASME B16.9 / NACE Standard |
| Material Type | DSS (Duplex Stainless Steel) |

ASTM A815 S31803
ASTM A815 UNS S31803 is a specification for duplex stainless steel fittings of seamless and welded construction, it consists of elbows, reducers, tees and stud ends.
ASTM A815 duplex butt weld fittings are widely used in various industries. Fittings and flanges of S 31803 are made available on customer’s request.
Duplex stainless steel 2205 (S31803) Chemical Composition %
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 2205 (S31803) | MinMax | -0.030 | -2.00 | -1.00 | -0.030 | -0.020 | 21.023.0 | 2.53.5 | 4.56.5 | 0.080.20 |
UNS S32205 Long Radius Elbow Mechanical Behaviour
| Grades | Density (lb/in 3) | Melting Point (°F) | Density (g/centimeter 3) | Melting Point (°C) |
| S31803 / S32205 Fittings | 0.285 | 2588 to 2669 | 7.805 | 1420 to 1465 |




What are Similar Grades to UNS S31803 Fittings
- 2205
- EN 1.4462Z
- UNS S31803
- UNS S32205
- BS 318S13
- 318
Duplex Steel Buttweld Fittings
Package
We have marked Duplex Steel Buttweld Fittings with Grade, Heat No, Size, Standard and Thickness. Our workers wrapped ASTM A815 UNS S31803 Elbows in waterproof material and placed them in wooden crates or pallets, then bundled the packages with nylon rope.
Clear labels are attached to the outside of the package for easy identification of quantity and product I.D. Great care is taken during operation and transportation.
Inspection
Visually inspect the surface of the duplex stainless steel elbow fittings.
Check the marking. Such as size, material code, grade, thickness, heat number.
Measure the diameter and thickness whether in tolerance.
Test the chemical properties of ASTM A815 UNS S31803 tube fittings.
Properties
Duplex stainless steels are considered to be resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steels. However, the corrosion resistance of the least resistant duplex stainless steels is much better than that of the most commonly used 304 and 316 stainless steels.
How Many Types of Steel Pipe Elbow?
- Angle
45 Degree Elbow, 90 Degree Elbow, 180 Degree Elbow.
- Shape
Straight Elbow and Reducing Elbow.
- Radius
Long Radius Elbow and Short Radius Elbow.
- Connection
Butt Weld Elbow, Socket Weld Elbow, Threaded Elbow.
How to Calculate Weight of 90 Degree Elbow
Calculation Formula : W=0.0387 * S( D – S ) * R / 1000
- W = Weight (kg/piece).
- S = Thickness in mm.
- D = Nominal Diameter in mm.
- R = Radius
For example” 90 Degree Elbow SR 10″ x 10mm Thickness BW ASTM A403 WP316 ASME B16.9″
From above information, we can know OD is 10″ which is 273mm. SR means 1D that is 1 x 273mm. Thickness is 10mm. Let’s take these data into formula.
0.0387 x 10 x (273 – 10) x 1 x 273 / 1000 = 27.8kg/pcs.
C&N industrial Group, pipe, fitting and flanges manufacturers,fbe epoxy and pe coating for pipeline since 1991,with brand C&N huitong ,C&N hongcheng.














