Nascent Pipe & Tubes is one of the well-known manufacturers of high quality Stainless Steel 317 Fasteners (Screws), which can be successfully welded by all standard methods, where preheating is not necessary. Properties of Stainless Steel 317 Hex Head Screws comparable to those of the parent metal may be achieved in the weld metal by post – weld heat treatment.
As for other high strength steels, precaution should be taken in design and welding procedures of these Stainless Steel 317 Socket Head Cap Screws to avoid concentration of weldment stresses. After solution treatment a single low temperature “age hardening” treatment is employed to achieve required properties of Stainless Steel 317 Socket Set Screws.
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Heat treatment in these Stainless Steel 317 Anchore Screws results in no distortion and only superficial discolouration, where a slight decrease in size (shrinkage) takes place during the hardening. In solution treated, Stainless Steel 317 Blind Rivet has lower resistance to stress corrosion cracking, and lower ductility compared to aged conditions.
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These Stainless Steel 317 Concrete Screws should not generally be used in the solution treated condition, even if the hardness is considered satisfactory. Stainless Steel 317 Threaded Screws has good oxidation resistance, but to avoid reduction of its mechanical properties and hardness it should not be used above its age hardening temperature. The great benefit of these Stainless Steel 317 Steel Shoulder Screws is that they are generally supplied in the solution treated condition.
SS 317 Screws Specifications
| Specifications |
ASTM A 193 ASME SA 193 |
| Standard |
IS, ASTM, BS and all International Standards |
| Length |
3 mm to 200 mm |
| Size |
M3 – M33 |
| Type |
Hex Head Screw, Socket Head Cap Screw, Socket Set Screws, Anchor Screw, Blind Rivet, Concrete screw, Threaded Screw, Steel Shoulder Screw, Panel Screw, Machine Screw. |
317 Stainless Steel Screw Chemical Composition
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
| 316Ti |
min. |
- |
– |
– |
– |
– |
18.0 |
- |
11.0 |
- |
| max. |
0.08 |
2.0 |
1.00 |
0.045 |
0.03 |
20.0 |
14.0 |
– |
Stainless Steel 317 Screw Mechanical Properties
| Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
| Rockwell B (HR B) max |
Brinell (HB) max |
| 317 |
515 |
205 |
35 |
95 |
217 |
Stainless Steel 317 Screw Physical Properties
| Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (m/m/0C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-1000C (J/kg.K)Electrical Resistivity (n.m) |
Electrical Resistivity (n.m) |
| 0-1000C |
0-3150C |
0-5380C |
at 1000C |
at 5000C |
| 317 |
8000 |
193 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
500 |
720 |
Equivalent Grades for 317 Stainless Steel Screw
| Grade |
UNS No |
Old British |
Euronorm |
Swedish SS |
Japanese JIS |
| BS |
En |
No |
Name |
| 317 |
S31700 |
– |
– |
1.4449 |
– |
– |
– |
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