Standards and Equivalents

JIS G3101 SS41:

Equivalent to ASTM A36 (USA) or EN 10025-2 S235JR (Europe) in mechanical properties (but note that ASTM A36 is a structural carbon steel, not explicitly galvanized).

Hot-Dip Galvanizing Standards:

JIS H8641 (Japanese standard for hot-dip galvanized coatings on steel).

ISO 1461, ASTM A123 (international norms for galvanization quality).

Selection Considerations

Project Requirements: Use SS41 hot-dipped plates for non-load-bearing or low-to-medium load structures where corrosion resistance is prioritized over high strength.

Alternative Grades: For higher strength in construction, consider JIS SM490 (low alloy) or SS50 (higher carbon content) with optional galvanizing.

Fabrication: Ensure welding procedures suit carbon steel (preheating may be required for thick sections to prevent cracking).

Summary

 

 

 

 

 

 

 

Mechanical Properties

Property	Typical Values (JIS G3101)
Yield Strength	≥ 245 MPa (for thickness ≤ 16 mm)
Tensile Strength	410–540 MPa
Elongation (δ5)	≥ 21% (for thickness ≤ 16 mm)
Impact Resistance	Not explicitly specified (as a carbon steel, toughness is moderate)

 

 

 

 

 

 

 

 

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