What material is x5crni18-10 equivalent to？

Analysis of X5CrNi18-10 Equivalent Materials

X5CrNi18-10 is a typical grade designation for 304 stainless steel in the European (especially German traditional DIN and current EN) standards. Its chemical composition and properties are fully equivalent to the internationally recognized 304 stainless steel, widely used in industrial and civil applications requiring corrosion resistance and excellent formability. Below is a detailed breakdown:

1. Standards and Equivalent Grades

🔹EN Standard (EU): Corresponding to 1.4301 (EN 10088-2, etc.), the unified EU grade for 304 stainless steel.

International Equivalents:

🔹USA/ASME: 304 (UNS S30400)

🔹Japan/JIS: SUS304

🔹China/GB: 06Cr19Ni10 (old grade: 0Cr18Ni9)

🔹ISO Standard: X5CrNi18-10 (ISO 683-16)

 

2. x5crni18-10 stainless steel Chemical Composition (Typical Values)

Element	C (Carbon)	Cr (Chromium)	Ni (Nickel)	Mn (Manganese)	Si (Silicon)	P (Phosphorus)	S (Sulfur)
Content	≤0.07%	17.5–19.5%	8.0–10.5%	≤2.0%	≤1.0%	≤0.045%	≤0.03%

 

3. Properties and Applications

🔹x5crni18-10 stainless steel Corrosion Resistance: Resistant to common acids/alkalis (e.g., dilute nitric acid, organic acids), saltwater, and atmospheric corrosion. Superior to non-low-carbon stainless steels but requires attention to intergranular corrosion after heavy welding (ideal for non-critical welding scenarios).

🔹x5crni18-10 stainless steel Workability: Excellent cold formability, weldability, and polishability; suitable for bending, stamping, and welding.

🔹x5crni18-10 stainless steel High-Temperature Resistance: Can be used long-term at ≤870°C, with short-term resistance up to 1035°C (excellent oxidation resistance).

🔹x5crni18-10 stainless steel Applications:

Food & Pharmaceutical: Storage tanks, pipelines, and equipment (compliant with FDA, EU 10/2011 food contact standards).

Architectural Decoration: Curtain walls, handrails, and kitchenware (e.g., stainless steel sinks, cutlery).

Industrial Equipment: Chemical vessels, heat exchangers, and mechanical parts (in non-severe corrosive environments).

 

4. Difference from 304L (Low-Carbon Variant)

Grade	X5CrNi18-10 (304)	X2CrNi18-9 (304L Equivalent)
Carbon Content	≤0.07% (standard carbon)	≤0.03% (low-carbon, "L" grade)
Welding Use	For non-welded or simple welded parts (post-weld heat treatment recommended for critical applications).	Ideal for heavy welding scenarios; no heat treatment needed due to low carbon, resisting intergranular corrosion.
Cost	Lower cost than 304L	5–10% higher cost due to stricter carbon control.

 

5. Notes for International Trade

🔹Standard Compliance:

For EU markets: Provide EN 10204 3.1/3.2 material certificates or CE certification (e.g., PED for pressure equipment).

For North America: Label as 304/UNS S30400 with ASTM A240/A312 test reports.