Stainless steel butt weld fittings are defined as components used in piping systems to change direction, branch, or change the diameter of the pipe and are mechanically connected to the system. Butt-weld fittings are stainless steel pipe fittings with butt-weld connections that are easy to install and maintain.
316 stainless steel butt weld fittings are fittings made of 316 stainless steel. 316 stainless steel is an austenitic stainless steel, the addition of Mo element makes its corrosion resistance and high-temperature strength have been greatly improved, can withstand 1200-1300 degrees high temperature, and can be used in harsh conditions. Corrosion resistance is better than 304 stainless steel and has good corrosion resistance in the production process of pulp and paper. And 316 stainless steel is also resistant to marine and aggressive industrial atmospheres. It includes stainless steel elbows, equal/reduced tees, concentric or eccentric reducers, stainless steel caps, stainless steel short pipe ends, etc.
Specifications of Stainless Steel 316 Butt Weld Fitting
Specifications: ASTM A403/ASME SA403,
Standards: ASTM, ASME, DIN, GOST, EN, etc.
Material: Stainless Steel 316
Sizes: DN15-DN1200
Seamless Butt Weld Fitting: 1/2"-10"
Welded Butt Weld Fitting: 1/2"-48"
Thickness: SCH 10, SCH 20, SCH 30, SCH STD, SCH60, SCH XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, SCH XXS, etc.
Surface: Polished
Bending Radius: R=1D, 2D, 3D, 5D, 6D, 8D, 10D, or as required
Elbows Types: 45°, 90°, 180°, LR, SR
Fitting Types: Elbow, Tee, Cross, Cap, Return Bend, Eccentric Reducer, Concentric Reducer, etc.
Payment Terms: T/T, L/C
Delivery Time: As per quantity required
Chemical Composition (%) of Stainless Steel 316 Butt Weld Fitting
|
C, max |
Mn, max |
Si, max |
P, max |
S, max |
Cr |
Mo |
Ni |
Fe, min |
|
0.08 |
2.00 |
1.00 |
0.045 |
0.030 |
16.00-18.00 |
2.00-3.00 |
11.00-14.00 |
67.845 |
Mechanical Properties of Stainless Steel 316 Butt Weld Fitting
|
Tensile Strength, Psi [MPa] |
Yield Strength (0.2%Offset), Psi [MPa] |
Elongation (%) |
Hardness |
|
75000 [515] |
30000 [205] |
35 |
95 HRB 217 HB |
Physical Properties of Stainless Steel 316 Butt Weld Fitting
|
Density |
Elastic Modulus |
Mean Co-eff of Thermal Expansion (µm/m/°C) |
Thermal Conductivity |
Specific Heat 0-100°C |
Elec Resistivity |
|||
|
0-100°C |
0-315°C |
0-538°C |
At 100°C |
At 500°C |
||||
|
8000 |
193 |
15.9 |
16.2 |
17.5 |
16.3 |
21.5 |
500 |
740 |
Dimensions of Stainless Steel 316 Elbows and Returns
|
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 |
Center to Face |
Center to Face |
Radius |
Center to Center |
Back to face |
|
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 |
10/12 |
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 |
Dimensions of Stainless Steel 316 Reducers
|
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 |
Center to Face |
Center to Face |
Radius |
Center to Center |
Back to face |
|
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 |
10/12 |
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 |
Equivalent Grades of Stainless Steel 316 Butt Weld Fitting
|
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
BS |
GOST |
AFNOR |
EN |
|
SS 316 |
1.4401 / 1.4436 |
S31600 |
SUS 316 |
316S31 / 316S33 |
- |
Z7CND17-11-02 |
X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
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