SS 347 Threaded RodUNS S34700 · DIN 976-1:2016-09, Form A, where applicable · Manufacturer, trader & exporter, India
AISI 347 · UNS S34700
An SS 347 threaded rod is a continuously threaded bar cut to length. Finished fastener specification not asserted; ASTM A193 B8C may be specified for applicable bolting products — confirm the required product form and grade in the purchase specification. Threaded rod is cut to make studs and hangers. Available in full lengths or cut pieces.
- UNS S34700
- DIN 976-1:2016-09, Form A, where applicable
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an SS 347 Threaded Rod?
- What it is
- A continuously threaded bar cut to length
- Finished spec
- Not asserted
- Material / feedstock
- ASTM A193 B8C may be specified for applicable bolting products; confirm the required product form and grade in the purchase specification
- Dimensions
- DIN 976-1:2016-09, Form A, where applicable
- Grade
- SS 347 · UNS S34700
- Best at
- Welded high-temperature piping in refineries and power plants
SS 347 Threaded Rod Specification
| Product | SS 347 Threaded Rod |
|---|---|
| Finished fastener specification | Not asserted |
| Material / feedstock specification | ASTM A193 B8C may be specified for applicable bolting products; confirm the required product form and grade in the purchase specification |
| Dimensional standard | DIN 976-1:2016-09, Form A, where applicable |
| Manufacturing route | Route dependent on product design and purchase specification |
| Project / purchase specification | Yes — finished fastener requirements are to the purchase specification or project drawing |
| Sizes | M10 – M64 · ½" – 4" (others on request) |
| Threads | UNC · UN-8 · metric coarse |
| Testing | PMI (as specified in the PO) · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 or 3.2 on request / as specified in the PO |
When to Choose a Threaded Rod
Threaded rod is cut to make studs and hangers. Available in full lengths or cut pieces.
- 1 m and 3 m lengths
- Cut to size
- UNC, UN-8 and metric
More on choosing: Threaded rod guide.
SS 347 Threaded Rod: Why 347 for threaded rods
Threaded rod is cut to make studs and hangers. Available in full lengths or cut pieces. In SS 347, the choice usually comes down to the medium and temperature — the rows here are the points buyers check for this exact combination.
| Why this grade | Stainless fasteners resist atmospheric and process corrosion. SS 347 is picked for welded high-temperature piping in refineries and power plants. |
|---|---|
| Typical service | Refinery hydroprocessing — Reactor effluent piping and exchangers. |
| Bolting | ASTM A193 B8C studs with A194 8C nuts |
SS 347 Threaded Rod Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Chromium | As specified |
| Nickel | As specified |
| Niobium | As specified |
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
| Phosphorus | As specified |
| Sulphur | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM A240 for UNS S34700.
SS 347 Threaded Rod Mechanical Properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength 0.2% | As specified |
| Elongation | As specified |
| Hardness | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification and condition to be verified: ASTM A240 for UNS S34700 — Annealed plate & sheet.
Full chemistry, properties and equivalents are on the SS 347 grade page.
Other SS 347 fasteners
SS 347 Threaded Rod — questions buyers ask
Is threaded rod the same as a stud bolt?
Stud bolts are cut from threaded rod or threaded to length and supplied with nuts, to flange-bolting dimensions.
What nut is used with SS 347 threaded rods?
ASTM A194 8C heavy hex nuts.
Which standard covers SS 347 threaded rods?
Finished fastener specification: Not asserted. Material / feedstock: ASTM A193 B8C may be specified for applicable bolting products; confirm the required product form and grade in the purchase specification. Dimensions: DIN 976-1:2016-09, Form A, where applicable. State the finished specification, material and dimensions on your purchase order or project drawing.
What decides the price of a SS 347 threaded rod?
The alloy price, the size and dimensions, quantity, and the testing and documents required. Send your list and we quote the same working day.
What documents do you supply?
EN 10204 3.1 or 3.2 certificates available on request / as specified in the PO; dimensional reports as required. PMI can be arranged depending on product and requirements, as specified in the PO.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026