Grades & Materials

SPECIFICATION FOR CAST (GREY) IRON

Country Specification Designation 150 180 200 220 250 260 300 350
India IS 210 1978 FG 150 — 200 — 250 — 300 350
United Kingdom BS 1452 1990 Grade 150 180 200 220 250 — 300 350
USA ANS/ASTM A48-83 Grade 20A 25A 30A — 35A 40A 45A 50A
Germany DIN 1691 1985 GG 15 — 20 — 25 — 30 35
France NFA 32-101-1987 FGL 150 — 200 — 250 — 300 350
Italy UNI 5007 1969 G 15 — 20 — 25 — 30 35
Japan JIS G5501 1981 FC 150 — 200 — 250 — 300 250
Russia GOST 1412 1979 Sch 15 18 20 — 25 — 30 35
International ISO 185-1988 Grade 150 — 200 — 250 — 300 350
CLASS 2 — 3 — 4 — 5 6
Hardness Range BHN 136-167 159-194 180-222 202-247 227-278
Total Carbon % 3.4-3.6 3.2-3.5 3.15-3.30 2.9-3.1 3.1 max
Silicon % 2.2-2.5 2.0-2.5 1.6-1.9 1.8-2.0 1.4-1.6
Mangenese % 0.5-0.7 0.6-0.8 0.6-0.8 0.7-0.9 0.7-0.9
Sulphur % 0.15 0.15 0.12 max 0.10 max 0.10 max
Phosphorous % 0.9-1.2 0.4 max 0.3 max 0.10 max 0.10 max
Molybdenum % 0.3-0.5
Cu or Ni % 0.3-0.5 1.0-1.5

NOTE: The above standards for ordering reference only the customer can specify any special requirement. All specifications are subject to change without prior notice.

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SPECIFICATION FOR DUCTILE (NODULAR / SPHEROIDAL IRON)

Country Specification Designation Minimum Tensile Strength / Elongation
India SG 800/2 700/2 600/3 500/7 420/12 400/18 350/22
United Kingdom BS2789:1985 800/2 700/2 600/3 500/7 420/12 400/18 350/22
USA ASTM A536-84:1976 120-90-02 100-70-03 80-60-03 80-55-06 65-45-12 60-42-10 60-40-18
German Din 1693-1973 GGG 800/2 700/2 600/3 500/7 400/15 400/18 350/22
France NF A 32-201:1976 FGS 800/2 700/2 600/3 500/7 400/12 370/17 —
Italy UNI 4544:1979 GS 800/2 700/2 600/3 500/7 400/12 370/17 —
Japan JIS G5502:1982 FCD (80)758/2 (70)686/2 (60)588/3 (50)490/7 (40)392/12 (37)363/17 —
International ISO 1083:1976 800/2 700/2 600/3 500/7 400/12 370/17
(827/2) (689/3) (555/3) (552/6) (448/12) (415/10) (414/18)
Hardness BHN 248-352 229-302 192-269 170-241 201 max 179 max 160 max
Structure P or T P P & F F & P F F F
Equivalence kgf/mm2 81.6 71.4 61.2 51 42.8 40.8 35.7
TC Si Mn (max) TC Si Mn
(max)		 TC Si Mn
(max)		 Tc Si Mn
(max)
3.6-3.8 2.6-2.8 0.5 3.6-3.8 2.6-2.8 0.3 3.6-3.8 2.6-2.8 0.2 3.6-3.8 2.6-2.8 0.1
3.5-3.6 2.2-2.5 0.6 3.5-3.6 2.2-2.5 0.35 3.5-3.6 2.2-2.4 0.25 3.5-3.6 2.2-2.4 0.15
3.5-3.6 2.1-2.3 0.7 3.5-3.6 2.1-2.4 0.4 3.5-3.6 2.1-2.4 0.3 3.5-3.6 2.2-2.4
3.4-3.5 1.9-2.1 0.8 3.4-3.5 2.0-2.2 0.5 3.4-3.5 2.0-2.2 0.35 3.4-3.5 1.8-2.0
3.4-3.5 1.8-2.0 0.8 3.4-3.5 1.8-2.0 0.6 3.4-3.5 1.8-2.0 3.4-3.5 1.8-2.0 0.25

NOTE: The above standards for ordering reference only the customer can specify any special requirement. All specifications are subject to change without prior notice.

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