SAE J434 GRADES OF DUCTILE IRON PRODUCED BY URICK

Grade Typical BHN Tensile Strength (min) Yield Strength (min) % Elongation
MPa KSI MPa KSI
D400 143-170 400 58 275 40 18
D450 156-217 450 65 310 45 12
D500 187-229 500 73 345 50 6
D550 217-269 550 80 380 55 4
D700 241-302 700 102 450 65 3
D800 255-311 800 116 480 70 2

ASTM A897/ 897M-06 Grades of Austempered Ductile Iron

Minimum Properties To Meet The Specified Grade

Prior Designation Grade

Tensile Strength (MPa/KSI)

Yield Strength (MPa/KSI)

Elongation (%)

Impact Energy (Joules/Lb-Ft.)

Typical Hardness BHN
- 750-500-11 750/110 500/70 11 110/80 241-302
1 900-650-09 900/130 650/90 9 100/75 269-341
2 1050-750-07 1050/150 750/110 7 80/60 302-375
3 1200-850-04 1200/175 850/125 4 60/45 341-444
4 1400-1100-02 1400/200 1100/155 2 35/25 388-477
5 1600-1300-01 1600/230 1300/185 1 20/15 402-512


REQUEST A QUOTE