SS 316/316L/316Ti Forged Fittings Specifications
| Grade | SS 316(UNS S31600) SS 316L(UNS S31603) SS 316Ti(UNS S31635) |
| Werkstoff Nr | 316 / 1.4401 316L / 1.4404 316TI/1.4571 |
| Standard | ASTM A182 / ASME SA182 |
| Specification | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Size | ½” NB – 4” NB |
| Pressure | 2000LBS, 3000LBS, 6000LBS, 9000LBS, etc. |
| Type | Socket Weld (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT, Threaded Fitting |
Types of Forged Fittings
| Stainless Steel Socket Weld Caps | Stainless Steel Socket Weld Tee | Stainless Steel Socket Weld Unions |
| Stainless Steel Couplings | Stainless Steel Forged Reducers | Stainless Steel Socket Weld Cross |
| Stainless Steel Socket Weld 90° Elbows | Stainless Steel Socket Weld Full Coupling | Stainless Steel Socket Weld Half Coupling |
| Stainless Steel Socket Weld 45° Elbows | Stainless Steel Socket Weld Reducing Coupling | Stainless Steel Screwed Unions |
| Stainless Steel Screwed 45° Elbows | Stainless Steel Screwed 90° Elbows | Stainless Steel Screwed Tee |
| Stainless Steel Screwed Cross | Stainless Steel Screwed Hex Plug | Stainless Steel Screwed Squared Plug |
| Stainless Steel Screwed Hex Nipple | Stainless Steel Screwed Bushing | Stainless Steel Screwed Full Coupling |
| Stainless Steel Screwed Half Couplings | Stainless Steel Screwed Reducing Couplings | Stainless Steel Screwed Caps |
| Stainless Steel Weldolet | Stainless Steel Sockolet | Stainless Steel Threadolet |
| Stainless Steel Elbolet | Stainless Steel Nipolet | Stainless Steel Latrolet |
| Stainless Steel Concentric Swage Nipple | Stainless Steel Eccentric Swage Nipple | Stainless Steel Forged Pipe Nipple |
Chemical Compositions of SS 316/316L/316Ti Forged Fittings
| C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|
| 316 (S31600) |
0.08 max |
2.0 max |
0.75 max |
0.045 max |
0.03 max |
min: 16.0 max: 18.0 |
min: 2.0 max: 3.0 |
min: 10.0 max: 14.0 |
0.10 max |
| 316L (S31603) |
0.03 max |
2.0 max |
0.75 max |
0.045 max |
0.03 max |
min: 16.0 max: 18.0 |
min: 2.0 max: 3.0 |
min: 10.0 max: 14.0 |
0.10 max |
| 316TI(S31635) | - | - | - | - | - | 16.0 | 2.00 | 10.0 | - |
| 0.08 | 2 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.1 |
Mechanical Properties of SS 316/316L/316Ti Forged Fittings
| Grade | Tensile Strength ksi (min) |
Yield Strength 0.2% ksi (min) |
Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 316 (S31600) |
75 | 30 | 40 | 217 | 95 |
| 316L (S31603) |
70 | 25 | 40 | 217 | 95 |
| 316TI(S31635) | 515(Mpa) | 205(Mpa) | 35 | 205 | 75 |
Physical Properties of SS 316/316L Forged Fittings
| Density lbm/in3 |
Thermal Conductivity (BTU/h ft. °F) |
Electrical Resistivity (in x 10-6) |
Modulus of Elasticity (psi x 106 |
Coefficient of Thermal Expansion (in/in)/°F x 10-6 |
Specific Heat (BTU/lb/°F) |
Melting Range (°F) |
|---|---|---|---|---|---|---|
| 0.29 at 68°F | 100.8 at 68 212°F | 29.1 at 68°F | 29 | 8.9 at 32 – 212°F | 0.108 at 68°F | 2500 to 2550 |
| 9.7 at 32 – 1000°F | 0.116 at 200°F | |||||
| 11.1 at 32 – 1500°F |
Physical Properties of SS 316ti Forged Fittings
|
Physical Properties (Room Temperature)
|
||
|---|---|---|
|
Specific Heat (0-100°C)
|
500
|
J.kg-1.°K-1
|
|
Thermal Conductivity
|
14.6
|
W.m -1.°K-1
|
|
Thermal Expansion
|
16.5
|
mm/m/°C
|
|
Modulus Elasticity
|
193
|
GPa
|
|
Electrical Resistivity
|
7.4
|
μohm/cm
|
|
Density
|
7.99
|
g/cm3
|
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