Square Ductile Iron Tree Grating 400-1100 MPa Tensile Strength with ISO9001:2015 and DIN EN124 Standards

Square ductile iron tree grating designed for outdoor tree slab pit applications, manufactured to ISO9001:2015 and DIN EN124 standards for quality assurance and performance reliability.

• Ductile iron provides twice the strength of ordinary gray cast iron
• 30-50% lighter weight than traditional cast iron alternatives
• Tensile strength rating: 400-1100 MPa for heavy-duty applications
• Natural corrosion resistance with extended service life of 15-20 years

• Elastic self-locking structure prevents cover movement and jumping
• Enhanced anti-slip properties with chessboard or raised surface patterns
• High drainage efficiency with opening rate ≥30%
• Low maintenance requirements with reduced cleaning frequency

• Load-bearing grade selection (D400 for roadways)
• Environmental corrosiveness assessment for coating selection
• Low-temperature toughness requirements consideration

• Regular inspection of surface coating wear
• Periodic cleaning of drainage hole blockages
• Avoid mechanical impact to prevent deformation

Available customization includes color variations, size specifications, pattern designs (such as city logos), and surface treatment processes including sandblasting and chrome plating. Hidden connection design eliminates exposed solder joints for enhanced aesthetics.