What is 430F stainless steel round bar?
430F stainless steel round bar is a free-machining ferritic stainless steel bar that conforms to ASTM A582 standards and is designed for applications requiring excellent machinability. It offers moderate corrosion resistance in moderately corrosive atmospheric, freshwater, and weak acid environments. With a cutting speed 30%–50% higher than 430 stainless steel and less tool wear, it is an ideal choice for high-volume precision machined parts such as bolts, nuts, shafts, and instrument components, despite being magnetic and having limited weldability (preheating is required to avoid cracking).
430F SS bar Specifications
| Material Grade | 430F / X14CrMoS17 |
| Standard | EN 10088-3 / JIS Equivalent |
| Diameter | ∅ 15 mm |
| Tolerance | H9 (±0.052 mm) |
| Length | 3000 mm per bar |
| Quantity | 5000 kg total |
| Form | Cold Drawn / Annealed |
| Surface | Bright / Precision Bar |
| Certification | MTC / Chemical & Mechanical Test |
SUS 430 Bright Bar Equivalent Material
| Standards | ASTM | WNR | ASME | UNS | JIS | AMS |
|---|---|---|---|---|---|---|
| Country | America | Russia | Australia | North America | Japan | United States |
| Value | A276 | 1.4016 | SA276 | S43000 | SUS 430 | 5632 |
ASTM A276 430 Cold Drawn Bar HS Code
| Description | HS Code |
|---|---|
| 430 Stainless Steel Round Bar | 72210019 |
430 vs 430F
| Feature | 430 Round Bar | 430F Round Bar |
|---|---|---|
| Material | Stainless Steel 430 | Stainless Steel 430F |
| Chemical Composition | Fe + Cr (16-18%) | Fe + Cr (16-18%), S (0.15-0.60%) |
| Tensile Strength | 480 MPa (70 ksi) | 520 MPa (75 ksi) |
| Yield Strength | 275 MPa (40 ksi) | 310 MPa (45 ksi) |
| Machinability | 70% (of brass) | 90% (of brass) |
| Corrosion Resistance | Moderate | Moderate |
| Hardness | HRB 80-90 | HRB 85-95 |
| Applications | General use, fasteners | Precision machining, fasteners |
430F stianless steel rod Price Reference (Estimate)
| Product | Indicative Price (USD) |
|---|---|
| 430F ∅15 H9 (5000 kg order) | 2,300 – 2,900 USD/ton |
| SUS304 (similar size) | 2,800 – 3,500 USD/ton |
| SUS316L (similar size) | 3,500 – 4,200 USD/ton |
What does "H9" tolerance mean?
H9 tolerance means that for a diameter of 15 mm, the diameter accuracy is within ±0.052 mm, suitable for press fits and precision assemblies.
How does 430F stainless steel bar compare to 304/316L stainless steel bar?
430F is easier to machine and more cost-effective, but has lower corrosion resistance than 304/316L; it is more suitable for internal mechanical parts rather than highly corrosive environments.
Can 430F stainless steel bars be heat treated?
Yes. It can be annealed and cold drawn, but is not typically used in the hardened state like 440 series steels.
What are the uses of X14CrMoS17?
X14CrMoS17 (430F) is primarily used for precision machined parts such as shafts, fasteners, pins, and other components requiring high machinability and dimensional accuracy.
GNEE is a reliable supplier of 430F stainless steel round bars, typically available in diameters ranging from Ø6 mm to Ø450 mm, and offered in solution annealed or solution annealed and aged conditions.
All 430F stainless steel round bars are manufactured according to ASTM A276 and ASTM A479 standards and can be supplied with EN 10204 3.1 certificates.
GNEE offers various product forms, such as hot-rolled bars, forged bars, peeled bars, polished bars, and cut-to-length bars, to meet different processing and performance requirements.
For transportation and packaging, the round bars are treated with anti-rust oil, plastic wrapped, and packaged in seaworthy wooden crates or steel-banded bundles.
