UNS S31609 or as known as ASTM A403 WP316H Pipe Fittings are a high carbon modification of grade Alloy 316. If these fittings are manufactured under specification ASTM A403, the modified alloy was designed for use in elevated temperature service. Because the alloy has higher tensile strength at elevated temperatures, the Stainless Steel 316H Pipe Fittings are used for structural as well as pressure vessel applications at temperatures exceeding 932°F. The higher carbon content of 316H also what imparts a higher tensile and yield strength to these fittings in comparison to grades 316/316L. Whereas the austenitic microstructure of the alloy is what provides excellent toughness down to cryogenic temperatures. Hence, these fittings find use in many low temperature applications as well
Stainless Steel 316H Pipe Fittings
ASTM A403 WP316H Elbow
ASME SA403 WP316H Stub End
While the corrosion resistance properties of A403 WP316H Elbow is comparable to Alloy 316/316L stainless steel, it is considered to be much superior to Alloy 304/304L, especially in moderately corrosive environments. The Stainless Steel 316H Pipe Bend fitting is regularly used in process streams containing chlorides or halides. Not forgetting the alloys ability to resist atmospheric corrosion, in addition to, moderately oxidizing and reducing environments. Also referred to as marine grade, the UNS S31609 Tee fittings resist corrosion in polluted marine conditions.
Dimensions | ASME B16.28, MSS-SP-43, ASME/ANSI B16.9, BS4504, BS10, BS4504, BS1560, |
---|---|
Thickness | SCH10, SCH 80, SCH 100, SCH20, SCH30, STD SCH40, SCH 160, XXS, SCH60, XS, SCH 120, SCH 140, available with NACE MR 01-75 |
Type | DN15-DN1200 |
Connection | Welding |
SS 316H Pipe Bend Bending Radius | R=2D, 3D, 5D, 6D, 8D, 1D, 10D or Custom |
Manufacturing process | Press, Forge, Push, Cast, etc. |
Specialized manufacturer of | Tees, Crosses, Reducers, 90º Elbows, Stub End, Pipe Bend, 45º Elbows, Pipe Cap |
316H Stainless Steel Fittings | Stainless Steel 316H Pipe Fitting |
ASME SA403 WP316H 90 Degree Elbow | SS A403 WP316H End Cap |
ASTM A403 WP316H 45 Degree Elbow | UNS S31609 Buttweld Fitting |
ASME SA403 WP316H 3D Elbow | 316H SS End Cap |
UNS S31609 5D Elbow | Stainless Steel 316H Reducer |
ASTM A403 WP316H Equal Cross | Stainless Steel 316H Pipe Cap |
316H Stainless Steel Lateral Tee | SS A403 WP316H Cross Tee |
316H SS 1D Elbow | Stainless Steel 1.4401 Short Stub End |
UNS S31609 Stub End | 316H Stainless Steel Pipe Cap |
316H Stainless Steel Buttweld Fittings | SS A403 WP316H Pipe Bend |
ASTM A403 WP316H Pipe Fittings | 316H SS Long Stub End |
UNS S31609 Eccentric Reducer | SS A403 WP316H Long Radius Elbow |
Stainless Steel 316H Equal Tee | 316H SS Stub End |
ASME SA403 WP316H Concentric Reducer | ASTM A403 WP316H 5D Elbow |
Stainless Steel 1.4401 Concentric Reducer | ASME SA403 WP316H Short Radius Elbow |
Stainless Steel 1.4401 Reducing Cross | UNS S31609 Equal Cross |
ASTM A403 WP316H 90 Degree Elbow | $40.98/Each |
ASTM A403 WP316H Reducing Tee | $90.64 / each |
ASTM A403 WP316H Concentric Reducer Fittings | $106.60 / each |
ASTM A403 WP316H seamless elbow | $56.65 / each |
ASTM A403 WP316H schedule 40 split tee | $139.56 / each |
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.0 g/cm3 | 1399 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
SS 316H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.030 max | 16.00 – 18.00 | 2.00 – 3.00 | 10.00 – 14.00 | 68.89 min |
STANDARD | WERKSTOFF NR. | UNS |
SS 316H | 1.4401 | S31609 |
Nominal Pipe Size |
Outside Diameter |
90° Elbows | 45° Elbows | 180° Returns | ||||
---|---|---|---|---|---|---|---|---|
(inches)
|
Long Radius
|
Short Radius
|
Long Radius
|
Long Radius
|
||||
(mm)
|
(inches)
|
Center to Face
(inches) |
Center to Face
(inches) |
Center to Face
(inches) |
Radius
(inches) |
Center to Center
(inches) |
Back to face
(inches) |
|
1/2
|
21.3
|
0.840
|
1 1/2
|
–
|
5/8
|
2
|
1 7/8
|
|
3/4
|
26.7
|
1.050
|
1 1/8
|
–
|
7/16
|
2 1/4
|
1 11/16
|
|
1
|
33.4
|
1.315
|
1 1/2
|
1
|
7/8
|
3
|
2 3/16
|
|
1 1/4
|
42.2
|
1.660
|
1 7/8
|
1 1/4
|
1
|
3 3/4
|
2 3/4
|
|
1 1/2
|
48.3
|
1.900
|
2 1/4
|
1 1/2
|
1 1/8
|
3
|
4 1/2
|
3 1/4
|
2
|
60.3
|
2.375
|
3
|
2
|
1 3/8
|
4
|
6
|
4 3/16
|
2 1/2
|
73.0
|
2.875
|
3 3/4
|
2 1/2
|
1 3/4
|
5
|
7 1/2
|
5 3/16
|
3
|
88.9
|
3.500
|
4 1/2
|
3
|
2
|
6
|
9
|
6 1/4
|
3 1/2
|
101.6
|
4.000
|
5 1/4
|
3 1/2
|
2 1/4
|
7
|
10 1/2
|
7 1/4
|
4
|
114.3
|
4.500
|
6
|
4
|
2 1/2
|
8
|
12
|
8 1/4
|
5
|
141.3
|
5.563
|
7 1/2
|
5
|
3 1/8
|
10
|
15
|
10 5/16
|
6
|
168.3
|
6.625
|
9
|
6
|
3 3/4
|
12
|
18
|
12 5/16
|
8
|
219.1
|
8.625
|
12
|
8
|
5
|
12
|
24
|
16 5/16
|
10
|
273.1
|
10.750
|
15
|
10
|
6 1/4
|
15
|
30
|
20 3/8
|
12
|
323.9
|
12.750
|
18
|
12
|
7 1/2
|
18
|
36
|
24 3/8
|