Stainless Steel 430 / 430Ti Pipes & Tubes

High-temperature oxidation endurance, low thermal expansion, and resistance to chloride stress corrosion cracking make ferritic alloys essential for industrial fluid lines.

Stainless Steel 430 & 430Ti Pipes & Tubes Supplier & Stockist in India

High-temperature oxidation endurance, low thermal expansion, and resistance to chloride stress corrosion cracking make ferritic alloys essential for industrial fluid lines. As a premier Stainless Steel 430 Pipes & Tubes Supplier in India, Steel Emporium stocks non-hardening 17% chromium piping engineered for nitric acid containment, heat exchangers, and furnace ducting systems.

To support urgent project schedules across automotive exhaust and petrochemical sectors, we serve as a leading Stainless Steel 430 Pipes & Tubes Stockist in India. Our ready inventory of seamless and welded 430 ferritic stainless steel provides exceptional resistance to thermal scaling up to 815°C, fully compliant with ASTM A268 standards and backed by authentic EN 10204 3.1 certification.

When engineering elevated-temperature weldments, boiler flues, and combustion chambers requiring immunity to intergranular corrosion in post-weld zones, turn to our inventory as trusted Stainless Steel 430Ti Pipes & Tubes Suppliers in India. For heavy mechanical wear applications requiring high-carbon hardness or martensitic strength, review our complementary Stainless Steel 420 & 431 Pipes & Tubes catalog.

For titanium-stabilized ferritic line pipe designed for continuous thermal cycling without grain growth brittleness, partner with an established Stainless Steel 430Ti Pipes & Tubes Stockist in India. We offer direct factory pricing, precision cut-to-length services, and express export logistics for all industrial piping orders.

Steel Emporium warehouse stack of ASTM A268 Stainless Steel 430 seamless and welded pipes ready for dispatch in India

Jump To Section: Material Specs | Grade Selection | Size Chart | FAQs

ASTM A268 SS 430 & 430Ti Technical Specifications

Technical Parameters & Capabilities
Technical Parameter Specification Standard & Scope
Manufacturing Standards ASTM A268 (Seamless and Welded Ferritic Stainless Steel Tubing for General Service), ASME SA268
Dimensional Range Seamless: 1/2" NB to 12" NB | Welded / ERW: 1/2" NB to 24" NB | Custom OD: 6.0 mm to 610.0 mm
Wall Thickness / Schedules SCH 5S, SCH 10S, SCH 40S, SCH 80S (Custom wall gauge up to 12.7 mm)
Form & Delivery Conditions Round, Square, Rectangular, Fully Annealed, Passivated, Pickled
End Finish & Surface Processing Plain End (PE), Beveled End (BE), Threaded, Bright Annealed (BA), No. 4 Polish, 2B Mill Finish

Alloy Grade Selection Guide: SS 430 vs SS 430Ti

Choosing between standard SS 430 and titanium-stabilized SS 430Ti depends on your fabrication requirements and operating temperatures. While both are ferritic 17% chromium alloys offering immunity to chloride stress corrosion cracking, their performance diverges significantly once welding and thermal cycling enter the equation.

Titanium stabilized grade 430Ti ferritic stainless steel round tubing stock
Grade Comparison Matrix
Feature / Requirement SS 430 (UNS S43000) SS 430Ti (UNS S43036)
Primary Advantage High surface finish & cost-effective nitric acid resistance Titanium stabilization prevents sensitization during welding
Welded Joint Ductility Risk of brittle HAZ without post-weld annealing Excellent as-welded joint ductility and toughness
Intergranular Corrosion Prone to chromium carbide precipitation in HAZ Immune (Titanium ties up carbon as TiC)
Max Thermal Limit Up to 815°C (Intermittent service) Up to 870°C (Continuous cyclic thermal exposure)
Best Used For Unwelded ducting, chemical storage tanks, decorative trim Automotive exhausts, boiler tubes, burner assemblies

Grade 430 Stainless Steel Pipes & Tubes – Cost-Effective Ferritic Solution in India

Featuring a minimum 16% chromium content with virtually zero nickel, Stainless Steel 430 Pipes offer a cost-effective solution for resisting chemical oxidation in mild industrial atmospheres and organic acid media. If your project involves non-welded assemblies or post-annealed components, verifying the precise 430 stainless steel chemical composition ensures proper chromium distribution. Sourcing a mill-certified 430 stainless steel pipe in India guarantees high resistance to stress corrosion cracking compared to standard austenitic alloys.

Grade 430Ti Stainless Steel Pipes & Tubes – High-Temp Titanium-Stabilized Line Pipe

If your application involves heavy field welding or continuous high-temperature cycling, titanium-stabilized SS 430Ti tubes are the essential choice. By integrating titanium at five times the carbon content (Ti ≥ 5 × C), these tubes suppress chromium carbide precipitation along grain boundaries during welding. When sourcing a stainless steel 430Ti pipe, this metallurgical stabilization maintains full joint ductility and intergranular corrosion resistance in heat-affected zones, eliminating the need for costly post-weld heat treatment.

Which Grade Fits Your Order?

Select Stainless Steel 430 if: You require a cost-effective, nickel-free solution for unwelded fluid lines, chemical storage tanks, or furnace ducting operating under mild atmospheric conditions. Select Stainless Steel 430Ti if: You are fabricating welded heat exchangers, exhaust manifolds, or boiler flues exposed to continuous heat cycling where post-weld heat treatment is impractical.

Chemical, Mechanical & Equivalent Specifications

Chemical Composition
Element / Parameter SS 430 (UNS S43000) SS 430Ti (UNS S43036)
Carbon (C) 0.12 max 0.05 max
Chromium (Cr) 16.00 – 18.00 16.00 – 18.00
Titanium (Ti) — 5 × (C + N) min to 0.75 max
Manganese (Mn) 1.00 max 1.00 max
Silicon (Si) 1.00 max 1.00 max
Nickel (Ni) 0.75 max 0.75 max
Phosphorus (P) 0.040 max 0.040 max
Sulfur (S) 0.030 max 0.030 max
Mechanical Properties
Mechanical Property SS 430 Pipes & Tubes SS 430Ti Pipes & Tubes
Tensile Strength (MPa min) 450 415
Yield Strength (0.2% Proof, MPa min) 205 205
Elongation (% in 50mm min) 22 20
Hardness (Rockwell B max / Brinell max) 83 HRB / 183 HBW 85 HRB / 190 HBW
International Grade Equivalents
Standard / Agency SS 430 SS 430Ti
UNS Designation UNS S43000 UNS S43036
Werkstoff Nr. 1.4016 1.4510 / 1.4520
EN Standard X6Cr17 X3CrTi17
AFNOR Z8 C 17 Z4 CT 17

SS 430 & 430Ti Size & Schedule Chart

Size & Dimensions
Nominal Size (NB) Outer Diameter (mm) SCH 5S Wall SCH 10S Wall SCH 40S Wall
1/2" NB 21.34 mm 1.65 mm 2.11 mm 2.77 mm
1" NB 33.40 mm 1.65 mm 2.77 mm 3.38 mm
1.5" NB 48.26 mm 1.65 mm 2.77 mm 3.68 mm
2" NB 60.32 mm 1.65 mm 2.77 mm 3.91 mm
3" NB 88.90 mm 2.05 mm 3.05 mm 5.49 mm
4" NB 114.30 mm 2.11 mm 3.05 mm 6.02 mm

Key Industrial Applications

Nitric Acid Processing & Chemical Storage (SS 430)

Employed in nitric acid production lines, storage tanks, and chemical absorption towers due to high resistance to oxidizing acids.

Automotive Exhaust & Manifold Systems (SS 430Ti)

Specified for exhaust manifolds, catalytic converter casings, and muffler tubing that experience continuous thermal cycling and road salt splash.

Industrial Burners & Combustion Tubes (SS 430Ti)

Utilized in industrial oven liners, boiler flues, and flare stacks where titanium prevents grain growth embrittlement at elevated temperatures.

Food Processing & Sugar Refining (SS 430)

Applied in conveyor rollers, sugar juice evaporators, and architectural ducting requiring moderate corrosion resistance and easy surface cleaning.

Quality Control, MTC Documentation & Inspection Standards

Every pipe dispatch undergoes rigorous quality control protocols to ensure dimensional compliance and chemical purity before shipping.

Certifications & Tests
Certification / Standard Compliance & Testing Scope
ISO 9001:2015 & Pressure Compliance Certified QMS with PED 2014/68/EU and AD 2000 Merkblatt approvals.
EN 10204 3.1 & 3.2 MTC Official test reports covering heat numbers, chemistry, and factory origin tracking.
PMI & Lab Verification 100% XRF spectro testing and NABL-accredited laboratory inspections.
Mechanical & Weld NDT Hydrostatic, ultrasonic, and flaring tests guarantee 100% seam integrity.
TPI & Corporate Address Inspection-ready for SGS, TUV, Bureau Veritas, or Lloyds.
Verified Corporate Address Registered Head Office & Operations: 102, Durga Devi Street, Mumbai-400004, Maharashtra, India

Frequently Asked Questions

Standard SS 430 is prone to grain growth and embrittlement in the heat-affected zone, requiring pre-heating and post-weld annealing. In contrast, SS 430Ti contains titanium, which prevents carbide precipitation and allows direct welding without post-weld heat treatment.

Neither grade is recommended for direct saltwater or marine submersion as they lack molybdenum. For marine applications requiring high pitting resistance, austenitic grades like SS 316L or duplex alloys are better suited.

Yes, both SS 430 and SS 430Ti feature a body-centered cubic (BCC) ferritic crystal structure, making them fully magnetic in all conditions (annealed or cold-worked).

SS 430 resists oxidation up to 815°C in continuous service and 870°C in intermittent service. However, prolonged exposure between 400°C and 540°C can cause 475°C embrittlement, which can be restored via post-heat annealing.

SS 430 and 430Ti are significantly more cost-effective than SS 304 because they contain virtually zero nickel. This makes them ideal budget-friendly alternatives for applications where high nickel content is not strictly required.

Both grades have limited weldability due to their high carbon content and air-hardening tendencies. Welding requires preheating (200–300°C) and immediate post-weld heat treatment (PWHT) to prevent cracking in the heat-affected zone.

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