Stainless Steel 410S Round Bar
➡️ SS 410S | UNS S41008 | EN 1.4000 | X6Cr13 | AISI 410S | ASTM A276
➡️ 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:
S41008
Wr. No.:
1.4000
MTC Available:
EN 10204 3.1
Product Description for Stainless Steel 410S Round Bar
Stainless Steel 410S Round Bar is a solid round bar made from the low-carbon version of Type 410 chromium stainless steel (UNS S41008). It carries about 11.5–13.5% chromium and not more than 0.08% carbon. The low carbon content keeps the structure mainly ferritic after annealing, so the grade does not harden much when it is cooled quickly from high temperature.
This non-hardening behaviour is the main reason buyers choose 410S over standard 410. It reduces the risk of cracking during welding and during service at high temperature. The bar offers moderate corrosion resistance in mild atmospheres, fresh water, steam and many mild chemicals. It also resists scaling in air up to about 700°C in continuous service.
In Europe the matching material is 1.4000 (X6Cr13) to EN 10088-3. The chemistry of the American grade follows UNS S41008 as listed in ASTM A240 and ASTM A959. Bars are normally supplied annealed and may be hot rolled, forged, peeled, cold drawn or centreless ground. Like all 12% chromium ferritic-type steels, 410S bar is attracted to a magnet in every condition.
Common uses include annealing boxes, quenching racks, furnace parts, petrochemical tray supports, fasteners and machined parts that are welded. It is also used for linings and parts in oil refining and power plants where mild corrosion and heat are present. Compared with austenitic grades it costs less and has lower thermal expansion. However, it has lower general corrosion resistance than 304 and should not be used in chloride-rich or strongly acidic service. For large welded assemblies, 410S also avoids the post-weld hardening that often forces a full heat treatment on standard 410 parts.
Common Applications of Stainless Steel 410S 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 410S Round Bar
Standard
Country / Region
Grade
UNS
USA
UNS S41008
ASTM / AISI / SAE
USA
410S / Type 410S
EN 10088-3
Europe
1.4000 (X6Cr13)
BS 970-1
United Kingdom
403S17
JIS G4303
Japan
SUS410S
GB/T 1220
China
06Cr13 (S41008) / 0Cr13
KS D 3706
South Korea
STS410S
ISO 15510
International
X6Cr13
GOST
Russia
08Kh13 (08Х13)
Technical Specification for Stainless Steel 410S Round Bar
Specification
Value
Unit
Material
Stainless steel
-
Grade
410S / UNS S41008 / 1.4000
-
Standard
EN 10088-3 (bars), chemistry per ASTM A240 / A959 UNS S41008
-
Product Form
Round bar
-
Diameter (supply range)
6–300
mm
Length (random)
3–6
m
Manufacturing Process
Hot rolled, forged, cold drawn, peeled or ground
-
Surface Finish
Black, pickled, bright, peeled, turned or ground
-
Heat Treatment / Delivery Condition
Annealed (+A)
-
Tolerance Standard
ASTM A484 / EN 10060 / EN 10278
-
Density
7.7
g/cm³
Melting Range
1480–1530
°C
Thermal Conductivity at 20°C
25
W/m·K
Coefficient of Thermal Expansion 20–100°C
10.5
µm/m·K
Specific Heat at 20°C
460
J/kg·K
Electrical Resistivity at 20°C
0.60
µΩ·m
Modulus of Elasticity at 20°C
200
GPa
Magnetic Properties
Ferromagnetic
-
Testing / Inspection
Chemical analysis, tensile, hardness, dimensional, visual, optional UT
-
Certification
EN 10204 3.1 mill test certificate (3.2 on request)
-
Technical Specifications
Get the key technical specifications for Stainless Steel 410S Round Bar
Stainless Steel 410S Round Bar is ordered mainly to EN 10088-3 as grade 1.4000 in the annealed (+A) condition. For American orders the chemistry is taken from UNS S41008 as listed in ASTM A240 and harmonised in ASTM A959. Buyers should state the exact standard on the order, because bar-specific ASTM coverage for S41008 varies by edition.
Bars are hot rolled or forged, then annealed. They can be supplied black, descaled, peeled, cold drawn or centreless ground. Diameter, out-of-round and straightness tolerances follow ASTM A484 for American orders, or EN 10060 (hot rolled) and EN 10278 (bright bar, commonly h9 to h11) for European orders.
Annealing is normally done at about 750–850°C followed by air cooling. The grade is not meant to be hardened. Physical values in the table are given for design guidance only. The alloy is magnetic and has lower thermal expansion than austenitic stainless steel, which helps in cyclic heating.
Standard tests include heat analysis, tensile test, hardness test and dimensional check. Ultrasonic testing, PMI and third-party inspection can be added. The mill certificate should show the standard, heat number, condition and test results.
Because many mills stock 410S as plate rather than bar, round bar is often forged or cut from heavier stock. Ask the supplier whether the bar is rolled, forged or plate-cut, as this affects grain direction and test location.
Chemical Composition for Stainless Steel 410S Round Bar
Element
Symbol
Min
Max
Unit
Carbon
C
-
0.08
%
Manganese
Mn
-
1.00
%
Silicon
Si
-
1.00
%
Phosphorus
P
-
0.040
%
Sulfur
S
-
0.030
%
Chromium
Cr
11.5
13.5
%
Nickel
Ni
-
0.60
%
Chemical Composition
View the chemical composition and applicable material limits for SS 410S Round Bar
The table shows the limits for UNS S41008 as given in ASTM A240. The European grade 1.4000 is very close, with chromium set at 12.0–14.0% in EN 10088-3 and no nickel limit of the same form.
Chromium is the key element. At 11.5–13.5% it forms a thin passive film that gives the bar its basic resistance to rust and scaling. This is enough for mild atmospheres, steam and fresh water, but not for chloride-rich or strongly acidic service.
Carbon is held to 0.08% maximum. This low level is the main difference from Type 410. With less carbon, little austenite forms at high temperature, so hard martensite does not form on cooling. The result is a soft, ductile bar that is easier to weld and less likely to crack.
Manganese and silicon act as deoxidisers during steelmaking. Silicon also helps oxidation resistance slightly. Phosphorus and sulfur are kept low to protect toughness, hot workability and weld quality. Nickel is a residual element limited to 0.60% so that it does not promote hardening. Always check the heat analysis on the mill certificate against the ordered standard. If the part will run hot for long periods, a bar near the upper end of the chromium range gives slightly better scaling resistance.
Mechanical Properties for Stainless Steel 410S Round Bar
Mechanical Property
Value
Unit
Tensile Strength (ASTM A240, annealed)
≥ 415
MPa
Yield Strength 0.2% (ASTM A240, annealed)
≥ 205
MPa
Elongation in 50 mm (ASTM A240)
≥ 22
%
Hardness (ASTM A240)
≤ 183
HB
Tensile Strength (EN 10088-3, 1.4000 +A)
400–630
MPa
0.2% Proof Strength (EN 10088-3, +A)
≥ 230
MPa
Elongation A (EN 10088-3, +A)
≥ 20
%
Hardness (EN 10088-3, +A)
≤ 200
HB
Mechanical Properties
Check the key mechanical properties and performance requirements of SS 410S Round Bar
The mechanical values are shown for two references and should not be mixed. The ASTM A240 values apply to S41008 in the annealed condition and are widely used as the reference for 410S. The EN 10088-3 values apply to grade 1.4000 bars in the annealed (+A) condition.
Annealed 410S bar combines moderate strength with the ductility needed for bending and welding. It can be bent, formed and machined without special steps. Because the structure is mainly ferritic, strength does not rise much with quenching. This is useful where parts are welded or heated and cooled many times, as the metal does not become hard and brittle.
Tensile and hardness results are taken on samples from the delivered bar. Values can vary slightly with bar size and finishing route. Cold drawing can raise strength and lower elongation. For design, use the minimum values of the ordered standard and confirm actual results from the mill certificate. Impact values are not mandatory in the base standards but can be ordered as a supplementary test. If the part will be welded, the heat-affected zone of 410S stays close to the parent-metal hardness, so no post-weld tempering is normally needed to restore ductility. This is the main mechanical advantage over 410.
Dimension / Sizes for Stainless Steel 410S Round Bar
Dimension / Size
Value
Unit
Available Diameter Range (supply capability)
6–300 (larger forged sizes on request)
mm
Standard Length (random)
3–6
m
Custom / Cut-to-Length
Available on request
-
Diameter Tolerance
Per ASTM A484 / A484M (hot-finished or cold-finished class) or EN 10060 / EN 10278 h9-h11
-
Length Tolerance
Per ordered standard or as agreed (commonly +50 / -0 mm for cut lengths)
-
Straightness Tolerance
Per ASTM A484 / EN 10060 or as agreed
-
End Condition
Saw cut square, chamfered or as ordered
-
Surface Finish
Black (hot rolled), annealed and pickled, bright drawn, peeled, turned, centreless ground or polished
-
Dimensions & Sizes
Explore available diameters, lengths, and dimensional requirements for SS 410S Round Bar
Pricing for Stainless Steel 410S 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 410S 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 the difference between 410S and 410 round bar?
Can 410S round bar be hardened like 410?
What is the maximum service temperature for 410S round bar?
Why is 410S bar often certified to EN 10088-3 instead of an ASTM bar standard?
How do I weld and machine 410S without cracking?
Where should 410S not be used?
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