Stainless Steel 316Ti Round Bar
➡️ SS 316Ti | UNS S31635 | EN 1.4571
➡️ ASTM, EN, JIS & International Standards
➡️ Supply Conditions
➡️ Multiple Diameters & Supply Lengths
➡️ Global Export & International Delivery
Country of Origin:
Europe, Japan, USA
Material Type:
Stainless Steel
UNS Number:
S31635
Wr. No.:
1.4571
MTC Available:
EN 10204 3.1
Product Description for Stainless Steel 316Ti Round Bar
316Ti (UNS S31635) is a titanium-stabilised austenitic stainless steel, bought principally to ASTM A276 / A276M and ASTM A479 / A479M with dimensions to ASTM A484 / A484M. European practice specifies it as grade 1.4571 to EN 10088-3.
The composition is 17Cr-12Ni-2.5Mo with a controlled titanium addition of at least five times the combined carbon and nitrogen content. Titanium grabs carbon first, forming stable titanium carbide and stopping chromium carbide from precipitating at grain boundaries during welding or service between roughly 450 C and 850 C. The payoff is resistance to intergranular corrosion in the as-welded condition without the strength penalty a low-carbon grade brings, plus better hot strength than 316L.
Molybdenum at 2.00-3.00% handles pitting and crevice corrosion in chloride-bearing media, giving a pitting resistance equivalent normally around 24-26, much the same as standard 316.
A stabilising anneal at roughly 850-900 C is sometimes applied after solution annealing where conditions are demanding, so that carbon is fully tied up as titanium carbide before the part goes into service.
Bar arrives solution annealed at about 1020-1120 C then quenched hard, hot-finished or cold-finished by drawing, peeling, turning or grinding, in diameters from 6 mm to 300 mm. The structure is fully austenitic, so annealed bar is non-magnetic and does not respond to hardening heat treatment. Cold-finished material is supplied re-annealed where full ductility and corrosion resistance are both wanted, and intergranular corrosion testing to ASTM A262 Practice E is a common addition to the order.
Typical work includes welded chemical plant, expansion joints, heat-exchanger parts, exhaust and flue-gas hardware, pulp and paper equipment and pharmaceutical process machinery.
Common Applications of Stainless Steel 316Ti Round Bar
➡️ Machined shafts, spindles, valve stems, pump sleeves and pins for food, beverage, dairy and pharmaceutical equipment, where the passive chromium oxide film resists both product acids and caustic clean-in-place chemicals.
➡️ Fasteners, studs, bolts, threaded rod and anchor components produced from bar stock, chosen for corrosion resistance combined with the ductility needed for cold heading and thread rolling.
➡️ Chemical, water treatment and general process plant parts such as agitator shafts, flange blanks, nozzles and support components handling water, steam and mildly corrosive media free of significant chlorides.
➡️ Architectural and structural hardware including handrail stanchions, balustrade fittings, tension rods and bollards, where a bright ground or polished bar finish provides both appearance and low maintenance.
International Equivalent Grade for SS 316Ti Round Bar
Standard
Country / Region
Grade
ASTM A276 / A276M
USA
Type 316Ti (UNS S31635)
ASTM A479 / A479M
USA
UNS S31635
ASME SA-479
USA
UNS S31635
EN 10088-3
Europe / EU
1.4571 (X6CrNiMoTi17-12-2)
BS EN 10088-3
United Kingdom
1.4571
JIS G4303
Japan
SUS 316Ti
GB/T 1220
China
06Cr17Ni12Mo2Ti (S31668)
KS D 3706
South Korea
STS 316Ti
ISO 15510
International
X6CrNiMoTi17-12-2
Technical Specification for Stainless Steel 316Ti Round Bar
Specification
Value
Unit
Material
Stainless steel
-
Grade
316Ti / UNS S31635 / 1.4571
-
Product Form
Round bar / rod
-
Standard
ASTM A276 / A276M, ASTM A479 / A479M, EN 10088-3
-
Diameter
6 - 300 (typical supply range)
mm
Length
3 - 6 (random), or cut to length
m
Manufacturing Process
Hot rolled or forged, solution annealed
-
Production Route
EAF + AOD refining, continuous cast or ingot
-
Surface Finish
Hot-rolled and pickled, cold-drawn, peeled, turned, centreless ground, polished
-
Heat Treatment / Delivery Condition
Solution annealed 1020-1120 C, water quenched, EN condition +AT
-
Tolerance Standard
ASTM A484 / A484M, or EN 10060 / EN 10278 in European practice
-
Density
8.00 (typical)
g/cm3
Melting Range
1370 - 1400 (typical)
C
Thermal Conductivity at 100 C
15.0 (typical)
W/m.K
Coefficient of Thermal Expansion (20-100 C)
16.5 (typical)
um/m.C
Specific Heat (0-100 C)
500 (typical)
J/kg.K
Electrical Resistivity at 20 C
0.75 (typical)
uOhm.m
Modulus of Elasticity at 20 C
193 (typical)
GPa
Magnetic Properties
Non-magnetic in the solution-annealed condition
-
Pitting Resistance Equivalent (PREN)
24 - 26 (typical, calculated)
-
Testing / Inspection Standard
ASTM A370 for mechanical testing, ASTM A262 Practice E for intergranular corrosion
-
Certification / Inspection Documents
EN 10204 3.1 or 3.2 mill test certificate
-
Technical Specifications
Get the key technical specifications for Stainless Steel 316Ti Round Bar
Specify ASTM A276 / A276M or ASTM A479 / A479M under UNS S31635, or to EN 10088-3 as 1.4571 in the +AT solution-annealed condition, with ASME SA-479 for pressure-retaining components. Diameter, straightness and surface requirements sit in ASTM A484 / A484M, or EN 10060 and EN 10278 in European practice.
The requirement that matters most is titanium content, set at a minimum of five times the combined carbon and nitrogen with a 0.70% ceiling. That ratio guarantees enough titanium to tie up all the available carbon as titanium carbide, leaving chromium in solution to keep the passive film working. Check it against the heat analysis on the certificate rather than assuming it.
Solution annealing runs 1020-1120 C followed by a fast quench. Where service is demanding, a stabilising anneal at roughly 850-900 C may follow, so carbon is fully combined before the component starts work.
Because stabilisation removes the need for low carbon, 316Ti holds better strength at temperature than 316L and is used to roughly 800 C in oxidising service.
Nothing thermal will harden the grade. Cold finishing raises strength and can leave a slight magnetic response. Supplementary testing that comes up often includes ASTM A262 Practice E intergranular corrosion testing and ferrite content verification.
Chemical Composition for Stainless Steel 316Ti Round Bar
Element
Symbol
Min
Max
Unit
Carbon
C
-
0.08
%
Manganese
Mn
-
2.00
%
Silicon
Si
-
0.75
%
Phosphorus
P
-
0.045
%
Sulfur
S
-
0.030
%
Chromium
Cr
16.00
18.00
%
Nickel
Ni
10.00
14.00
%
Molybdenum
Mo
2.00
3.00
%
Titanium
Ti
5 x (C+N)
0.70
%
Nitrogen
N
-
0.10
%
Iron
Fe
Balance
-
%
Chemical Composition
View the chemical composition and applicable material limits for SS 316Ti Round Bar
Titanium is what defines this grade. Specified at a minimum of five times the combined carbon and nitrogen content and capped at 0.70%, it has a far stronger appetite for carbon than chromium does. During welding or exposure in the 450-850 C sensitisation range, titanium forms titanium carbide first, which leaves chromium dissolved in the matrix where it carries on maintaining the passive film. Chromium depletion at the grain boundaries never happens, and neither does the intergranular corrosion that follows it.
Chromium at 16.00-18.00% provides that passive film and the general corrosion resistance. Molybdenum at 2.00-3.00% strengthens it against localised breakdown, covering pitting and crevice corrosion in chloride-bearing environments and carrying most of the pitting resistance equivalent of roughly 24-26.
Nickel at 10.00-14.00% runs higher than in Type 304 to offset the ferrite-forming pull of molybdenum. It holds the austenitic structure and supplies ductility, toughness and resistance in reducing media.
Carbon is allowed up to 0.08%, the same as standard 316, because stabilisation rather than carbon restriction does the work here. That is precisely why 316Ti keeps more strength at temperature than 316L.
Manganese and silicon deoxidise, nitrogen adds modest strength, and phosphorus and sulphur are residuals limited to protect hot workability and corrosion behaviour.
Mechanical Properties for Stainless Steel 316Ti Round Bar
Mechanical Property
Value
Unit
Tensile Strength
515
MPa (minimum)
Yield Strength 0.2% Proof
205
MPa (minimum)
Elongation in 50 mm
40
% (minimum, ASTM A276 Condition A)
Elongation in 50 mm, shapes 12.5 mm section and under
30
% (minimum, ASTM A276 footnote)
Reduction of Area
40
% (minimum, ASTM A276)
Hardness
217
HB (maximum)
Hardness
95
HRB (maximum)
Tensile Strength, EN 10088-3 condition +AT
500 - 700
MPa (specified range)
Modulus of Elasticity
193
GPa (typical)
Mechanical Properties
Check the key mechanical properties and performance requirements of SS 316Ti Round Bar
Read the table as solution-annealed values. All are minima, apart from hardness, which caps, and the EN tensile figure, which is a range. ASTM A276 / A276M and EN 10088-3 set different requirements, so keep them apart: EN for 1.4571 in the +AT condition calls for 200 MPa minimum 0.2% proof strength with tensile between roughly 500 and 700 MPa. ASTM A370 governs the testing, carried out on material in its delivered condition.
Annealed 316Ti gives moderate strength with high ductility and toughness, closely tracking Type 316. Where it pulls ahead of 316L is at temperature, since the higher permitted carbon gives better creep and stress-rupture strength and allows service to roughly 800 C in oxidising conditions.
A fully austenitic structure means no ductile-to-brittle transition, so impact toughness stays high down to cryogenic temperatures. ASTM A276 imposes no mandatory Charpy requirement on the grade.
Nothing thermal will harden the alloy. Cold drawing lifts tensile and proof strength substantially at the cost of elongation, and may leave slight magnetic permeability behind, so cold-finished bar is supplied re-annealed where full ductility and corrosion resistance are both wanted.
Dimension / Sizes for Stainless Steel 316Ti Round Bar
Dimension / Size
Value
Unit
Diameter
6 - 300
mm
Standard Length
3 - 6 (random / mill lengths)
m
Custom Length
Cut to length available on request
-
Diameter Tolerance
Per ASTM A484 / A484M, varies with size and finish class
-
Length Tolerance
Per ASTM A484 / A484M or as agreed at order
-
Straightness Tolerance
Per ASTM A484 / A484M or as agreed at order
-
End Condition
Square cut, chamfered, or as ordered
-
Surface Finish
Hot-rolled and pickled, cold-drawn, peeled, turned, centreless ground, polished
-
Available Size Range
6 - 300, larger diameters by forging on enquiry
mm
Cut-to-Length Availability
Available
-
Dimensional Standard
ASTM A484 / A484M, or EN 10060 / EN 10278
-
Dimensions & Sizes
Explore available diameters, lengths, and dimensional requirements for SS 316Ti Round Bar
Pricing for Stainless Steel 316Ti Round Bar
Round Bar Prices are generally quoted per kilograms or meters tonnes and can fluctuate with the global raw material and market prices. The final price will depend on a variety of factors, including the grade size, diameter, length, surface finish, the quantity and whether the bars are cut to length or in standard lengths.
For smaller quantities, we can also quote per metre or per piece basis once the required dimensions have been confirmed. Container-loads or orders that are larger in size are typically priced per tonne, based upon the specifications required and the supply conditions.
Please provide your desired dimensions, grades, length number, and end for a current quote including the lead time applicable and details for certification.
Pricing
Get current Stainless Steel 316Ti Round Bar pricing based on size, quantity, grade, finish, and delivery requirements.
Why Choose Us
Euro Steel Bars is an international distributor, stockist and exporter of stainless round steel bars that cover carbon, stainless alloy, special grades. We stock a variety of sizes and grades. We guarantee every order with mill test certificates as well as full quality-assurance documentation. Our name speaks to our roots: European-sourced materials that is backed by the certificates and rigor that buyers from Asia as well as the Gulf and Africa are looking for.
Each bar we deliver is accompanied by EN 10204 3.1 mill test certificates as well as complete documentation of quality, so what you receive corresponds to what’s written in the documents. We carry a selection of sizes and grades ready for transport, and cut length upon the request of customers, which results in quicker lead times, whether you’re ordering just a one-off spec or a complete project tonnage.
We operate an actual wholesale business that is that is supported with an internationally-operated supply chain therefore we are able to serve fabricators sourcing one grade the same way in the same way as an EPC contractor who is placing a large order. Our clients include manufacturers, fabricators EPC construction companies, engineers oil and gas projects as well as construction companies. we design our inventory as well as documentation to show what buyers need to bring projects forward.
Our customers trust us across Qatar, Oman, Bahrain, Kuwait, Jordan, Malaysia, Singapore, Thailand, Taiwan, Turkey, Italy and South Africa. If you’re looking to source an Gulf energy project, or a construction project within Southeast Asia, you get the same quality of certified material, the exact documentation, and the exact delivery procedure.
Frequently Asked Questions
What is Stainless Steel 316Ti Round Bar?
What is the difference between 316Ti and 316L?
What standard does Stainless Steel 316Ti Round Bar comply with?
What are the equivalent grades of Stainless Steel 316Ti Round Bar?
What are the key mechanical properties of Stainless Steel 316Ti Round Bar?
What is the typical chemical composition of 316Ti?
Can 316Ti Round Bar be supplied cut to length or with a specific finish?
Is Stainless Steel 316Ti Round Bar magnetic?
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