Stainless Steel 430 Round Bar
➡️ SS 430 | UNS S43000 | EN 1.4016
➡️ 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:
S43000
Wr. No.:
1.4016
MTC Available:
EN 10204 3.1
Product Description for Stainless Steel 430 Round Bar
Grade 430 is designated UNS S43000 and W.Nr. 1.4016. As round bar it is normally ordered to ASTM A276 / A276M, with ASTM A484 / A484M covering dimensional and surface requirements. EN, JIS, GB/T and KS all carry an equivalent designation.
The grade is a ferritic stainless steel containing 16-18% chromium with carbon limited to 0.12% and no deliberate nickel addition. The ferritic structure gives good resistance to chloride stress corrosion cracking, moderate general corrosion resistance in atmospheric and mildly corrosive service, and lower thermal expansion than austenitic grades. The steel is magnetic and cannot be hardened by heat treatment.
The delivery condition is annealed. Available finishes include hot finished and pickled, cold drawn, peeled, turned, centreless ground and polished, and the choice follows the tolerance and surface quality the part needs. Common diameters run 3 mm to 500 mm, larger on request by forging, in 3 to 6 m random lengths or cut to size. The grade cannot be hardened by heat treatment and is supplied in the annealed condition.
It is machined into decorative hardware, fasteners, trim and machined general engineering parts. The main buyers are in architecture, automotive, domestic appliance manufacturing and general engineering. Material normally ships against an EN 10204 3.1 certificate showing heat analysis, mechanical results and delivery condition. Density is around 7.70 g/cm3 and the modulus of elasticity about 200 GPa. Third party inspection, positive material identification and non-destructive examination can be added at order stage. The melting range is roughly 1425 – 1510 C. The bar is ferromagnetic in every condition.
Common Applications of Stainless Steel 430 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 430 Round Bar
Standard
Country / Region
Grade
ASTM A276 / A276M
USA
Type 430 (UNS S43000)
ASTM A479 / A479M
USA
Type 430 (UNS S43000)
ASME SA-479
USA
Type 430 (UNS S43000)
EN 10088-3
Europe / EU
1.4016 (X6Cr17)
BS EN 10088-3
United Kingdom
1.4016 (X6Cr17)
JIS G4303
Japan
SUS430
GB/T 1220
China
10Cr17 (S11710)
KS D 3706
South Korea
STS430
ISO 15510
International
X6Cr17
Technical Specification for Stainless Steel 430 Round Bar
Specification
Value
Unit
Material
Stainless Steel
-
Grade
430 / UNS S43000 / W.Nr. 1.4016
-
Product Form
Round Bar / Rod
-
Standard
ASTM A276 / A276M and 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
Annealed
-
Tolerance Standard
ASTM A484 / A484M
-
Carbon Equivalent (CEV)
Not applicable (CEV applies to carbon and low-alloy steels)
-
Density
7.70 (nominal)
g/cm3
Melting Range
1425 - 1510 (typical)
C
Thermal Conductivity at 100 C
23.9 (typical)
W/m.K
Coefficient of Thermal Expansion (0-100 C)
10.4 (typical)
10-6/K
Specific Heat (0-100 C)
460 (typical)
J/kg.K
Electrical Resistivity at 20 C
0.60 (typical)
micro-ohm.m
Modulus of Elasticity at 20 C
200 (typical)
GPa
Magnetic Properties
Ferromagnetic in all conditions
-
Applicable Testing / Inspection Standard
ASTM A370 (mechanical testing), ASTM E18 / E10 (hardness)
-
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 430 Round Bar
Orders are normally placed to ASTM A276 / A276M and ASTM A479 / A479M, with ASTM A484 / A484M carrying the dimensional side. European practice specifies the same steel to EN as 1.4016 (X6Cr17). Whichever it is, the standard, the condition and any extra testing belong on the purchase order.
Annealing is carried out at approximately 760-830 C followed by air or water cooling. The grade is not hardenable by quenching; it may be work hardened to a limited extent only.
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.
Because the grade contains no nickel, its price is more stable and generally lower than austenitic alternatives, which is a significant commercial factor in high-volume decorative and appliance applications.
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 430 Round Bar
Element
Symbol
Min
Max
Unit
Carbon
C
-
0.12
%
Manganese
Mn
-
1.00
%
Silicon
Si
-
1.00
%
Phosphorus
P
-
0.040
%
Sulfur
S
-
0.030
%
Chromium
Cr
16.00
18.00
%
Chemical Composition
View the chemical composition and applicable material limits for SS 430 Round Bar
Chromium at 16-18% provides the passive film and the ferritic structure. The absence of nickel is deliberate: it keeps the steel ferritic and magnetic, and confers strong resistance to chloride stress corrosion cracking, to which austenitic grades are vulnerable.
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. There is no deliberate nickel addition, which keeps the structure ferritic. Beyond those, the standard controls only carbon, manganese, silicon, phosphorus, sulfur and chromium; nothing else is specified. Carbon is capped at 0.12%.
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.
Mechanical Properties for Stainless Steel 430 Round Bar
Mechanical Property
Value
Unit
Tensile Strength (ASTM A276, Condition A)
415 (min)
MPa
Yield Strength 0.2% (ASTM A276, Condition A)
207 (min)
MPa
Elongation in 50 mm (ASTM A276, hot-finished)
20 (min)
%
Reduction of Area (ASTM A276)
45 (min)
%
Tensile Strength (ASTM A479, annealed)
485 (min)
MPa
Yield Strength 0.2% (ASTM A479, annealed)
275 (min)
MPa
Hardness (ASTM A479, annealed)
192 (max)
HBW
Modulus of Elasticity
200
GPa
Mechanical Properties
Check the key mechanical properties and performance requirements of SS 430 Round Bar
The governing standard matters. ASTM A276 Condition A requires 415 MPa minimum tensile and 207 MPa minimum yield, while ASTM A479 for pressure-vessel bar requires 485 MPa and 275 MPa with a hardness ceiling of 192 HBW. Ductility and toughness are lower than austenitic grades, particularly at sub-zero temperature.
The annealed condition sets the properties, since this steel is not hardened by heat treatment. Hardness follows ASTM E10 or E18 and tensile testing follows ASTM A370.
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.
For component selection, the grade suits parts where moderate strength, magnetic response, resistance to chloride stress corrosion cracking and economy matter more than high ductility or low-temperature toughness. Impact toughness falls sharply below ambient temperature, so sub-zero service should be avoided unless verified by testing. Machinability is generally better than austenitic grades because the material work hardens far less.
Dimension / Sizes for Stainless Steel 430 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 430 Round Bar
Pricing for Stainless Steel 430 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 430 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 430 Round Bar?
What standard does Stainless Steel 430 Round Bar comply with?
What are the equivalent grades of Stainless Steel 430 Round Bar?
What sizes and lengths are available in Stainless Steel 430 Round Bar?
What are the key mechanical properties of Stainless Steel 430 Round Bar?
What is the typical chemical composition of Stainless Steel 430 Round Bar?
Can Stainless Steel 430 Round Bar be supplied cut to length or with a specific surface finish?
Can 430 round bar be hardened by heat treatment?
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