Stainless Steel 317L Fasteners
Alloy 317L or as referred to by its trade name UNS S31703 is a modified version of austenitic grade 316. In comparison to stainless steel grade 316, the corrosion resistance and tensile strength properties of Stainless Steel 317L Fasteners tends to be much higher. The toughness of this corrosion resistant austenitic alloy is much more than grade 304. Additionally, the cost of these fasteners is much higher to the other two conventionally used stainless steel grades as well.

The high levels of elements like chromium, nickel and molybdenum in the alloy assure the SS 317L threaded rod has superior chloride pitting in addition to having excellent resistance to general corrosion. An important fact about this alloy is that the 317L Stainless Steel screws manufactured from it offer improved resistance as opposed to grade 316L, especially in times when these fasteners have been exposed to strongly corrosive environments that not only contain sulfurous media but also chlorides, and other halides. The low carbon content of austenitic grade 317L enables the alloy to be welded without being prone to intergranular corrosion.
Intergranular corrosion is a problem that stems from chromium carbide precipitation. Since SS 317L Nut Bolt is relatively unaffected by intergranular corrosion, these fasteners can be used in an as-welded condition after being welded by most traditional processes. Usually, low carbon grades tend to get structurally weaker on account of the controlled carbon content, which is why most alloys belonging to this category have nitrogen added to its chemistry. This is no exception with the alloy used to make SS 317L hex bolt as well. With the addition of nitrogen as a strengthening agent, our clients have a choice of getting the AISI 317L Stud bolts dual certified as Alloy 317.
SS 317L Nut Bolt standard specification
Lengths | From 3 upto 200 Millimetre |
Standard | ASTM A193/ ASME SA193 |
In Form of: | Round, Threading, Hex, Square as per Gauge Etc. |
---|---|
Sizing | 3/6 inch upto 2 inch | M3 – M56 |
Chemical Element of SS 317L threaded rod
Material | C | Mn | Si | P | S | Cr | Ni | Mo | Fe |
SS 317L | 0.035 max | 2 max | 1 max | 0.040 max | 0.030 max | 18 – 20 | 11 – 15 | 3 – 4 | - |
Stainless Steel 317L Fasteners Equivalent Material
Standard | Werkstoff No. | UNS |
ASTM A193 | 1.4438 | S31703 |
AISI 317L Stud bolts Mechanical Properties Table
Density | Tensile Strength | Melting Point | Elongation | Yield Strength (0.2%Offset) |
8.0 g/cm3 | Psi – 75000 , MPa – 515 | 1454 °C (2650 °F) | 35 % | Psi – 30000 , MPa – 205 |
Size Table of 317L Stainless Steel Screws

- Stainless Steel Fasteners
- Stainless Steel 304 Fasteners
- Stainless Steel 304L Fasteners
- Stainless Steel 316 Fasteners
- Stainless Steel 316L Fasteners
- Stainless Steel 317L Fasteners
- 904L Stainless Steel Fasteners
- A2 70 Hex Head Bolt
- A4-70 Hex Bolt
- 15-5PH Bolts
- 17-4 PH Fasteners
- Alloy Steel Fasteners
- Nickel Fasteners
- Inconel Fasteners
- Inconel 600 Fasteners
- Inconel 625 Fasteners
- Inconel 718 Fasteners
- Monel Fasteners
- Hastelloy Fasteners
- Hastelloy C276 Fasteners
- Copper Fasteners
- Brass Fasteners
- Titanium Fasteners
- Duplex Fasteners
- A182 F51 Bolts
- A182 F53 Bolts
- A182 F55 Bolts
- Super Duplex Fasteners
- ASTM A479 UNS S32750 Bolts
- Zeron 100 Fasteners
- ASTM A453 Grade 660 Bolts
- 1.4980 Bolt
- XM 19 Stainless Steel Bolts