Steel House India is a leading manufacturer, supplier, and stockist of high-quality ASTM A276 AISI 430F stainless steel round bars in India. Grade 430F is a free-machining ferritic stainless steel specifically formulated with an increased sulfur content to deliver exceptional machinability, making it the ideal choice for high-volume production of complex parts. By combining a high chromium content of 16% to 18% with precise metallurgical refinement, this grade provides excellent corrosion resistance alongside the cost-efficiency required for mass manufacturing. As a trusted industrial partner, we ensure all our 430F round bars meet rigorous global standards, offering the consistent dimensional stability and tool-life efficiency that modern machining shops demand.
Our extensive manufacturing and stockist capabilities allow us to serve diverse sectors across India with precision-engineered products. While Grade 430F is highly valued for its superior cutting performance, we also maintain comprehensive stocks of other high-performance solutions to meet specific design requirements. This includes the heat-resistant AISI 422 Stainless Steel Round Bar, designed for critical high-temperature engineering, and the highly versatile AISI 304 Stainless Steel Round Bar, which serves as the global benchmark for general structural and corrosion-resistant applications. Our centralized warehouse in Mumbai serves as a strategic hub, ensuring that your requirements are met with ready-stock availability and rapid transit to major industrial corridors, including Pune, Ahmedabad, Chennai, and Delhi.
Bulk 430F Stock
Precision 430F Bars
Ready-Stock 430F Inventory
Chemical Composition of AISI 430F
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.12 Max |
| Chromium (Cr) | 16.00 – 18.00 |
| Sulfur (S) | 0.15 Min |
| Manganese (Mn) | 1.25 Max |
| Silicon (Si) | 1.00 Max |
| Phosphorus (P) | 0.06 Max |
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength (Min) | 550 MPa |
| Yield Strength (0.2% Offset) | 350 MPa |
| Elongation | 12% |
| Hardness (Brinell) | 160 – 190 HB |
Specifications
Standards: ASTM A276, ASTM A582, ASME SA276.
Testing: PMI Testing, Ultrasonic Testing, Hardness Testing, Tensile
Testing.
Documentation: EN 10204 3.1 Mill Test Certificate (MTC).
Surface Finish: Black (Hot Rolled), Bright, Peeled, Ground, and
Polished.
Size Range
We offer an extensive, ready-to-dispatch inventory:
Round Bar: 5mm to 300mm diameter.
Custom Sizes: Precision cutting and processing available as per
your engineering drawings.
Equivalent Grades
| Standard | Designation |
|---|---|
| USA (AISI) | 430F |
| Germany (DIN) | 1.4104 |
| Europe (EN) | X14CrMoS17 |
| Japan (JIS) | SUS 430F |
Grade Comparison
Selecting the right material is vital for optimizing machine shop throughput. Comparing the free-machining 430F with other grades helps balance your project needs for machinability, heat resistance, and corrosion protection.
| Feature | Grade 430F | Grade 422 | Grade 304 |
|---|---|---|---|
| Classification | Ferritic | Martensitic | Austenitic |
| Machinability | Excellent | Moderate | Fair |
| Corrosion Resistance | Moderate | Moderate | Excellent |
| Primary Use | Mass Production | High-Heat Parts | Structural Use |
For high-stress engineering applications where mechanical performance at elevated temperatures is a priority, engineers often evaluate the specialized creep resistance of AISI 422 Stainless Steel Round Bar. Conversely, for projects where general-purpose structural integrity and superior corrosion resistance are the primary requirements, the widely specified AISI 304 Stainless Steel Round Bar remains the industry preference.
Applications
■ Automatic Screw Machining: High-speed production of small
components.
■ Automotive Parts: Fuel injectors, sensor housings, and
transmission hardware.
■ Industrial Hardware: Bolts, nuts, screws, and intricate machined
fittings.
■ Appliance Components: Internal mechanism parts and precision
fasteners.
Advantages & Features
■ Excellent Machinability: High sulfur content ensures clean
cutting, high speed, and longer tool life.
■ Cost-Efficient Production: Minimizes labor time and tool
replacement costs in high-volume runs.
■ Good Corrosion Resistance: Sufficient for indoor and mild
atmospheric exposure.
■ Ready for Secondary Finishing: Easily polished or plated after
machining.
Pricing & Stock Availability
Starting Price: ₹140 – ₹280/Kg (subject to current market rates, size, quantity, and alloy surcharges).
📊 Request an Instant Commercial Quote: Metal market pricing fluctuates based on daily raw chromium and alloy surcharges. Our commercial team adapts quotes dynamically to offer you the best value based on order tonnage and custom processing requirements. Contact our Mumbai sales office today for a real-time bulk contract quotation.
Why Choose Steel House India
As a prominent manufacturer and stockist in Mumbai, we simplify your supply
chain:
■ Immediate Availability: Large ready-stock inventory minimizes
your project downtime.
■ Assured Quality: Every lot is backed by rigorous PMI testing
and EN 10204 3.1 MTC.
■ Pan-India Supply: Efficient logistics network delivering to
major industrial hubs across India.
■ Technical Consultation: Our experts assist with material
selection and machining guidance.
Frequently Asked Questions (FAQ)
1. What makes 430F better for machining than other grades?
AISI 430F is specifically alloyed with higher sulfur content, which acts as a chip breaker and lubricant during the cutting process, significantly improving tool life and production speeds.
2. Is AISI 430F rust-proof?
It is corrosion-resistant, but it is not as resistant as 304. It is best suited for indoor applications or components not exposed to harsh corrosive environments.
3. Can I use 430F for high-temperature applications?
While it has better heat resistance than some carbon steels, it is not designed for the extreme service temperatures of grades like 422.
4. Is 430F magnetic?
Yes, 430F is a ferritic stainless steel and is strongly magnetic.
5. Do you provide Material Test Certificates?
Yes, Steel House India provides EN 10204 3.1 MTC with all shipments to ensure full traceability.
6. How fast can you deliver to my workshop?
We maintain ready stock in Mumbai and can arrange rapid, secure transit to your industrial facility anywhere in India.
7. Do you offer custom cutting for small-scale projects?
Yes, we accommodate custom size requirements and precision cutting for both bulk contracts and smaller project needs.
8. Is 430F heat treatable?
Unlike martensitic grades, 430F is ferritic and cannot be hardened significantly by heat treatment; it is typically used in its annealed or cold-worked state.
Request a Callback from Our Sourcing Desk
This commercial product page is managed by Steel House India. For immediate product inquiries, direct bulk contracts, or to request a technical consultation, please forward your detailed material requirements to sales@steelhouseindia.com. Once received, a senior technical sourcing officer will review your specifications and contact you within two business hours to finalize your order.