A240 uns s41500 equivalent ISO X4CrNi13-4

A240 UNS S41500 Equivalent: ISO X4CrNi13-4 Analysis

ASTM A240 UNS S41500 is a martensitic stainless steel grade known for its high strength, good toughness, and moderate corrosion resistance, commonly used in plates for pressure vessels, valves, and structural components. The query references "ISO X4CrNi13-4" as a potential equivalent, but based on standard cross-references, UNS S41500 aligns more closely with EN/ISO 1.4313 (X3CrNiMo13-4), which includes molybdenum (Mo) for enhanced pitting resistance.

"X4CrNi13-4" appears to be a variant or possible typo for X3CrNiMo13-4, as the standard EN 10088-3 designation is X3CrNiMo13-4 (with ~0.3-0.7% Mo), not X4CrNi13-4 (which lacks Mo and may refer to a different grade like 1.4006/X12Cr13). However, assuming the intent is to compare UNS S41500 to the closest ISO/EN equivalent, 1.4313 (X3CrNiMo13-4) is the direct match, with nearly identical chemistry and properties for interchangeability in most applications.

Key Equivalence Insights

• Standard Mapping: ASTM A240 UNS S41500 (USA) is equivalent to EN 10088-3 / ISO 1.4313 (X3CrNiMo13-4) in Europe, with shared UNS designation S41500. This equivalence allows substitution in plates for pressure vessels, valves, and structural parts under ASME/EN codes.
• If "X4CrNi13-4" is Exact: This designation isn't standard for 1.4313; it may refer to X4CrNiMo16-5-1 (1.4418) or a variant without Mo. If so, it's not a direct equivalent—UNS S41500 includes Mo (0.5-1.0%) for better pitting resistance, while a pure X4CrNi13-4 would lack it, reducing PREN from ~18-22 to ~13. Confirm the exact ISO/EN number for accurate matching.
• Interchangeability: High between UNS S41500 and 1.4313 for chemistry/mechanics; use dual-cert material for seamless swaps in global projects.

Gangsteel stocks A240 UNS S41500 plates (1-200mm thick) with equivalents to 1.4313 available, priced at $2,600-2,800/ton FOB. Dual certs ensure compliance for ISO/EN projects.

Comparison Table: A240 UNS S41500 vs. ISO/EN 1.4313 (X3CrNiMo13-4)

Sourcing Considerations for Equivalents

• Gangsteel Stock: 1-200mm plates in A240 UNS S41500, dual-certified to EN 1.4313 for ISO/EN projects. Pricing $2,600-2,800/ton FOB; MOQ 1 ton, lead 7-30 days.
• Substitution Tips: Verify thickness/mechanicals; 1.4313 may have slightly lower Mo, but PREN overlap allows direct swap in most cases. For ASME/ISO harmony, request dual certs.
• If Not Equivalent: If "X4CrNi13-4" is literal (without Mo), it's closer to EN 1.4006 (X12Cr13), which lacks Mo/Ni and has lower corrosion/strength—not a match for S41500.

Contact Gangsteel for custom quotes, samples, or full data sheets on A240 UNS S41500 and equivalents. Explore our astm a240 /a240m or asme sa240/sa240m stock for immediate availability.