Stainless Steel 316H Round Bar
➡️ SS 316H | UNS S31609 | EN 1.4919
➡️ 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:
S31609
Wr. No.:
1.4919 (nearest)
MTC Available:
EN 10204 3.1
Product Description for Stainless Steel 316H Round Bar
In bar form, grade 316H is supplied to ASTM A479 / A479M. The steel is austenitic chromium-nickel (UNS S31609, W.Nr. 1.4919 (nearest)), and ASTM A484 / A484M sets the diameter, straightness and surface requirements. EN and GB/T list an equivalent grade. JIS and KS do not.
The grade is the high-carbon version of 316, carrying 0.04-0.10% carbon together with 2-3% molybdenum and a specified coarse grain size. The higher carbon content raises creep and stress-rupture strength above approximately 525 C, while molybdenum maintains resistance to chloride pitting and to hot corrosive process streams. It is used where both elevated-temperature strength and chemical resistance matter.
Supply is in the solution annealed (Condition A, +AT) condition, in diameters between 3 mm and 500 mm and random lengths of 3 to 6 m; larger diameters are forged and cut lengths are available. Surface options run from hot finished and pickled through cold drawn, peeled and turned to ground and polished. The grade cannot be hardened by heat treatment; higher strength is obtained only through cold working.
Fabricators use it for hot-service machined parts, bolting, supports and pressure-retaining components across refining, petrochemical, power generation and high-temperature chemical processing. Material normally ships against an EN 10204 3.1 certificate showing heat analysis, mechanical results and delivery condition. Third party inspection, positive material identification and non-destructive examination can be added at order stage. The melting range is roughly 1370 – 1400 C. In the annealed condition the steel is non-magnetic, though cold work can leave it slightly magnetic. The pitting resistance equivalent, Cr plus 3.3Mo plus 16N, works out at approximately 24 (typical).
Common Applications of Stainless Steel 316H 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 316H Round Bar
Standard
Country / Region
Grade
ASTM A479 / A479M
USA
Type 316H (UNS S31609)
ASME SA-479
USA
Type 316H (UNS S31609)
EN 10028-7
Europe / EU
1.4919 (X6CrNiMo17-13) - nearest equivalent
BS EN 10028-7
United Kingdom
1.4919 (X6CrNiMo17-13)
JIS G4303
Japan
No equivalent grade listed in JIS G4303
GB/T 20878
China
07Cr17Ni12Mo2 (S31609)
KS D 3706
South Korea
No equivalent grade listed in KS D 3706
ISO 15510
International
No direct equivalent identified
Technical Specification for Stainless Steel 316H Round Bar
Specification
Value
Unit
Material
Stainless Steel
-
Grade
316H / UNS S31609 / W.Nr. 1.4919 (nearest)
-
Product Form
Round Bar / Rod
-
Standard
ASTM A479 / A479M
-
Diameter
3 - 500 (larger by forging on request)
mm
Length
3 - 6 (random mill length) or cut to length
m
Manufacturing Process
Hot rolled, forged or cold finished
-
Production Route
EAF + AOD / VOD refining, continuous cast or ingot, hot rolled or forged
-
Surface Finish
Hot-finished and pickled, cold-drawn, peeled, turned, ground or polished
-
Heat Treatment / Delivery Condition
Solution annealed (condition a, +at)
-
Tolerance Standard
ASTM A484 / A484M
-
Carbon Equivalent (CEV)
Not applicable (CEV applies to carbon and low-alloy steels)
-
Density
8.00 (nominal)
g/cm3
Melting Range
1370 - 1400 (typical)
C
Thermal Conductivity at 100 C
16.3 (typical)
W/m.K
Coefficient of Thermal Expansion (0-100 C)
16.0 (typical)
10-6/K
Specific Heat (0-100 C)
500 (typical)
J/kg.K
Electrical Resistivity at 20 C
0.74 (typical)
micro-ohm.m
Modulus of Elasticity at 20 C
193 (typical)
GPa
Magnetic Properties
Non-magnetic in the solution annealed condition, slight magnetism may develop after cold work
-
Pitting Resistance Equivalent (PREN = Cr + 3.3Mo + 16N)
approximately 24 (typical)
-
Applicable Testing / Inspection Standard
ASTM A370 (mechanical testing), ASTM E112 (grain size, where required), ASTM A262 (intergranular corrosion, when specified)
-
Certification / Inspection Documents
EN 10204 3.1 mill test certificate standard, 3.2 third-party, PMI, ultrasonic and dye-penetrant examination available on request
-
Technical Specifications
Get the key technical specifications for Stainless Steel 316H Round Bar
Orders are normally placed to ASTM A479 / A479M, with ASTM A484 / A484M carrying the dimensional side. European practice specifies the same steel to EN as 1.4919 (X6CrNiMo17-13). Whichever it is, the standard, the condition and any extra testing belong on the purchase order.
Solution treatment is performed at approximately 1040-1120 C with rapid cooling. ASTM A479 requires an austenite grain size of ASTM No. 7 or coarser for the H grade, verified to ASTM E112.
Bar reaches its finish two ways: hot rolling or forging followed by heat treatment and pickling, or a further cold operation such as drawing, peeling, turning or grinding. Tolerances on diameter, out of round, straightness and length depend on both size and finish class.
The grade is listed in ASME Section II Part D for elevated-temperature service, and design allowable stresses at temperature, rather than room-temperature minima, normally govern component sizing.
Treat the physical properties as typical producer figures; the standard does not set them. Mechanical testing follows ASTM A370 and everything tested appears on the certificate.
Chemical Composition for Stainless Steel 316H Round Bar
Element
Symbol
Min
Max
Unit
Carbon
C
0.04
0.10
%
Manganese
Mn
-
2.00
%
Silicon
Si
-
1.00
%
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
%
Chemical Composition
View the chemical composition and applicable material limits for SS 316H Round Bar
The controlled carbon minimum of 0.04% provides the carbide dispersion and solid solution effect that resist deformation under sustained load at temperature. Molybdenum contributes additional solid-solution strengthening at temperature.
Chromium runs 16.00 to 18.00% here, and it is what makes the steel stainless: it builds the passive oxide film that resists attack. Nickel at 10.00 to 14.00% stabilises the structure and improves ductility and toughness. The standard also fixes molybdenum 2.00 to 3.00%. Carbon is held between 0.04 and 0.10%.
Manganese and silicon go in as deoxidisers during melting and add a little strength. Phosphorus and sulphur are residuals, held low because they hurt hot working, welding and corrosion resistance; sulphur is raised only when a free machining variant is wanted.
Limits differ a little between the ASTM, EN, JIS, GB/T and KS versions. That usually makes no practical difference, but it can in aggressive or high temperature duty, which is why the certified heat analysis is worth reading against the ordered specification. Chemical analysis is carried out to ASTM A751. Where the composition table shows no limit for an element, the standard sets no requirement and the element need not be determined or reported.
Mechanical Properties for Stainless Steel 316H Round Bar
Mechanical Property
Value
Unit
Tensile Strength (ASTM A479, annealed)
515 (min)
MPa
Yield Strength 0.2% (ASTM A479, annealed)
205 (min)
MPa
Elongation in 50 mm (ASTM A479, annealed)
30 (min)
%
Reduction of Area (ASTM A479, annealed)
40 (min)
%
Hardness (Brinell)
Not specified by ASTM A479 / A479M for this grade (typically 150 - 190 HBW as supplied)
HBW
Charpy V-Notch Impact at room temperature
60 - 120 (typical)
J
Modulus of Elasticity
193 (typical)
GPa
Mechanical Properties
Check the key mechanical properties and performance requirements of SS 316H Round Bar
Ambient minimum values are identical to 316, but selection is driven by creep-rupture data and ASME allowable stress tables in the intended service range.
Values relate to the solution annealed condition, verified by ASTM A370 tensile testing. Drawing or grinding work hardens the surface, which pushes as supplied strength above the specified minimum and pulls ductility down. The austenitic structure keeps its toughness down to cryogenic temperatures and shows no transition point.
Design to the minima of the ordered standard and condition; the certificate carries what the heat actually achieved. Bar diameter has an effect of its own, through cooling rate in heat treatment and the amount of working the section received.
In selection terms, moderate strength combined with very high ductility and toughness favours components that must be formed, welded or extensively machined rather than carry high stress in thin sections. Where greater strength is needed at similar corrosion resistance, cold-worked bar, a duplex grade or a precipitation-hardening grade is normally evaluated instead. Machinability is moderate, and work hardening during cutting should be managed with sharp tooling, positive feed and rigid setups.
Dimension / Sizes for Stainless Steel 316H Round Bar
Dimension / Size
Value
Unit
Diameter (standard supply range)
3 - 500 (larger by forging on request)
mm
Standard Length
3 - 6 (random mill length)
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 on the order
-
Straightness Tolerance
Per ASTM A484 / A484M or as agreed on the order
-
End Condition
Square cut, saw cut, chamfered or as ordered
-
Surface Finish
Hot-finished and pickled, cold-drawn, peeled, turned, ground or polished
-
Available Size Range (cold-finished bar)
3 - 100 (typical commercial capability)
mm
Available Size Range (hot-finished and forged bar)
16 - 500 (typical commercial capability)
mm
Cut-to-Length Availability
Available, tolerance to be agreed at order stage
-
Applicable Dimensional Standard
ASTM A484 / A484M
-
Dimensions & Sizes
Explore available diameters, lengths, and dimensional requirements for SS 316H Round Bar
Pricing for Stainless Steel 316H 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 316H 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 316H Round Bar?
What standard does Stainless Steel 316H Round Bar comply with?
What are the equivalent grades of Stainless Steel 316H Round Bar?
What sizes and lengths are available in Stainless Steel 316H Round Bar?
What are the key mechanical properties of Stainless Steel 316H Round Bar?
What is the typical chemical composition of Stainless Steel 316H Round Bar?
Can Stainless Steel 316H Round Bar be supplied cut to length or with a specific surface finish?
Why choose 316H instead of 316 or 316L?
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