What is S420n steel equivalent to din?

What is S420N Steel Equivalent to DIN?

As a leading exporter and manufacturer of high-quality structural steel plates, Gangsteel specializes in producing EN 10025-3 S420N steel.

S420N steel equivalent to DINis TStE 420 (DIN 17102), a normalized fine-grain structural steel with 420 MPa yield and -20°C impact toughness.

Our S420N plates are dual-certified (EN + DIN) upon request.

For a comprehensive overview of our en 10025 3 normalized steel plate offerings, explore our full range.

S420N Steel Equivalent to DIN Table

TStE 420 L= S420NL (-50°C). DIN 17102 is historical — replaced by EN 10025-3.

Chemical Composition Comparison (Max %, ≤100 mm)

S420Nhas tighter P/S for better toughness.

Mechanical Properties Comparison (≤16 mm, Min Values)

Full matchwhen normalized.

Substitution Guidelines

1. Use TStE 420 normalized
2. Specify -20°C impact (40 J)
3. CEV ≤ 0.48
4. Welding: Same — no preheat ≤50 mm

Why Gangsteel?

• Dual-Certified Plates(EN + DIN)
• Stock– 6–250 mm
• Testing– UT, Z35, HIC
• Global Export

Contact: admin@gangsteel.comProduct Page: en 10025 3 s420n normalized structural steel plate

Summary

S420N steel equivalent to DINis TStE 420 (DIN 17102) — matching 420 MPa yield, 520–680 MPa tensile, normalized delivery, and 40 J at -20°C. Ideal for legacy DIN projects.

FAQ

What is the DIN equivalent of S420N?

TStE 420 (DIN 17102)— 420 MPa yield, normalized, fine-grain. Direct replacement.

How do S420N and TStE 420 differ?

S420Nhas lower P/S (0.025/0.020 vs 0.030/0.025) for better toughness. All other specs identical.

Are mechanical properties the same?

Yes— yield, tensile, elongation, and 40 J at -20°C match exactly.

Can TStE 420 replace S420N?

Yes— if:

• Normalized
• Impact tested at -20°C
• CEV ≤ 0.48

Perfect for German-standard projects.

What about S420NL?

TStE 420 L— same as S420N, but 27 J at -50°C.