Cast Iron Grades Chart

Cast Iron Grades Chart

Indian Standard Of Cast Iron

Indian Standard Of Cast Iron

IS Title
1729:2002 Pipe Fittings and Drainage Pipes
13349:1992 Thimble Mounted
1537:1976 Pipes for Gas, Water and Sewage
1726:1991 Manhole Frames and Covers
1879:2010 Malleable cast iron
210:2009 Grey iron castings

IS 3114 Cast Iron Pipes And There Sizes

Nominal Size (mm) Depth Of Joint (mm) Lead / Joint (kg)
100 45 2.2
150 50 3.4
250 50 6.1
350 55 8.4
450 55 14
600 60 19
750 60 25
900 65 35
1100 65 46
1500 75 66.5
80 45 1.8
125 45 2.6
200 50 5
300 55 7.2
400 55 9.5
500 60 15
700 60 22
800 65 31.5
1000 65 41
1200 70 52

IS 1536 Cast Iron Material In Class LA, A & B For Gas, Water And Sewage

IS 1536 Cast Iron material

Class Dia (NB) Max. Hydrostatic Pressure (Mpa) Max. Working Pressure (Mpa) Hydrostatic Test Pressure (Mpa)
A 800 – 600 2 1.25 3.5
B 2.5 1.6 3.5
LA 1.6 1 3.5
A 700 – 1050 2 1.2 2
B 2.5 1.5 2
LA 1.5 1 1.5
1 Mpa = 10 kg/cm2

Table Of Content

Cast Iron Grades Chart

Country Grades Of Grey Cast Iron
Japan FC350 FC250 FC150 – FC300 FC200 FC100
Russia C Ч 35 C Ч 25 C Ч 15 C Ч 40 C Ч 30 C Ч 20 C Ч 10
Italy G35 G25 G15 – G30 G20 G10
England 350 250 150 – 300 200 100
India FG350 FG260 FG150 FG400 FG300 FG200 –
Spain FG35 FG25 FG15 – FG30 FG20 –
Australia T350 T260 T150 T400 T300 T220 –
Hungary OV35 OV25 OV15 OV40 OV30 OV20 –
ISO 350 250 150 – 300 200 100
China Taiwan – FC250 FC150 – FC300 FC200 FC100
Luxembourg FGG35 FGG25 FGG15 FGG40 FGG30 FGG20 –
Austria GG35 GG25 GG15 – GG30 GG20 –
Holland GG35 GG25 GG15 – GG30 GG20 –
COPANT FG350 FG250 FG150 FG400 FG300 FG200 FG100
Bulgaria Vch35 Vch25 Vch15 – Vch30 Vch20 –
Sweden O135 O125 O115 O140 O130 O120 O110
Belgium FGG35 FGG25 FGG15 FGG40 FGG30 FGG20 FGG10
Romania FC350 FC250 FC150 FC400 FC300 FC200 –
Poland Z135 Z125 Z115 Z140 Z130 Z120 –
France FGL350 FGL250 FGL150 FGL400 FGL300 FGL200 –
Germany GG35 GG25 GG15 GG40 GG30 GG20 –
USA NO.50 NO.35 NO.20 NO.60 NO.45 NO.30 –
China HT350 HT250 HT150 – HT300 HT200 HT100

Cast Iron Grades Chemical Composition

Cast Iron Grades Chemical Composition

Composition ASTM Grade 50 ASTM Grade 40 ASTM Grade 30 ASTM Grade 20
Sulfur (S) % 0 to 0.15 0 to 0.15 0 to 0.15 0 to 0.15
Manganese (Mn) % 0.5 to 0.7 0.5 to 0.7 0.5 to 0.7 0.5 to 0.7
Carbon (C) % 3.1 to 3.4 3.1 to 3.4 3.1 to 3.4 3.1 to 3.4
Iron (Fe) % 92.1 to 93.9 92.1 to 93.9 92.1 to 93.9 92.1 to 93.9
Silicon (Si) % 2.5 to 2.8 2.5 to 2.8 2.5 to 2.8 2.5 to 2.8
Phosphorus (P) % 0 to 0.9 0 to 0.9 0 to 0.9 0 to 0.9

Physical Properties of IS 3114 Cast Iron Grades

Grades Density
ASTM Grade 50 7.5 g/cm3 (470 lb/ft3)
ASTM Grade 40 7.5 g/cm3 (470 lb/ft3)
ASTM Grade 30 7.5 g/cm3 (470 lb/ft3)
ASTM Grade 20 7.5 g/cm3 (470 lb/ft3)

AWWA C105 Mechanical Properties

AWWA C105 Mechanical Properties

Properties ASTM Grade 50 ASTM Grade 40 ASTM Grade 30 ASTM Grade 20
Ultimate (UTS) 380MPa (56 x 103 psi) 310MPa (45 x 103 psi) 240MPa (35 x 103 psi) 160MPa (23 x 103 psi)
Shear Modulus 69GPa (10 x 106 psi) 69GPa (10 x 106 psi) 69GPa (10 x 106 psi) 69GPa (10 x 106psi)
Fracture Toughness 20 MPa-m1/2 (18 x 103 psi-in1/2) 18MPa-m1/2 (16 x 103 psi-in1/2) 13MPa-m1/2 (11 x 103 psi-in1/2) 10MPa-m1/2 (9.1 x 103 psi-in1/2)
Elongation at Break 9.6% 9.6% 9.6% 9.6%
Compressive Strength 1130MPa (160 x 103 psi) 970MPa (140 x 103 psi) 750MPa (110 x 103 psi) 570MPa (83 x 103 psi)
Brinell Hardness 260 230 210 160
ElasticModulus 180GPa (26 x 106 psi) 180GPa (26 x 106 psi) 180GPa (26 x 106 psi) 180GPa (26 x 106 psi)
Fatigue Strength 150MPa (21 x 103 psi) 130MPa (19 x 103 psi) 97MPa (14 x 103 psi) 69MPa (10 x 103 psi)
Poisson’s Ratio 0.29 0.29 0.29 0.29
Shear Strength 500MPa (73 x 103 psi) 390MPa (57 x 103 psi) 280MPa (40 x 103 psi) 180MPa (26 x 103 psi)
Yield (Proof) 230 MPa (33 x 103 psi) 200 MPa (28 x 103 psi) 130 MPa (19 x 103 psi) 98 MPa (14 x 103 psi)

Thermal Properties Of IS 1536 Cast Iron

Properties ASTM Grade 50 ASTM Grade 40 ASTM Grade 30 ASTM Grade 20
Thermal Expansion 11 µm/m-K 11 µm/m-K 11 µm/m-K 11 µm/m-K
Specific Heat Capacity 490 J/kg-K (0.12 BTU/lb-°F) 490 J/kg-K (0.12 BTU/lb-°F) 490 J/kg-K (0.12 BTU/lb-°F) 490 J/kg-K (0.12 BTU/lb-°F)
Melting Completion 1380 °C (2510 °F) 1380 °C (2510 °F) 1380 °C (2510 °F) 1380 °C (2510 °F)
Latent Heat of Fusion 280 J/g 280 J/g 280 J/g 280 J/g
Melting Onset 1180 °C (2150 °F) 1180 °C (2150 °F) 1180 °C (2150 °F) 1180 °C (2150 °F)
Thermal Conductivity 46 W/m-K (27 BTU/h-ft-°F) 46 W/m-K (27 BTU/h-ft-°F) 46 W/m-K (27 BTU/h-ft-°F) 46 W/m-K (27 BTU/h-ft-°F)

AWWA C151 Cast Iron Electrical Properties

AWWA C151 Cast Iron Electrical Properties

Properties ASTM Grade 50 ASTM Grade 40 ASTM Grade 30 ASTM Grade 20
Equal Weight 8.9 % IACS 8.9 % IACS 8.9 % IACS 8.9 % IACS
Equal Volume 7.4 % IACS 7.4 % IACS 7.4 % IACS 7.4 % IACS

Cast Iron AWWA C151 And ASTM A674 Specification

Cast Iron AWWA C151 and ASTM A674 Specification

Dimension Of AWWA C151 Iron Pipes

Size (in) Outside Dia (in) Pressure Class Of Wall Thickness (in)
150 250 350 200 300
4 4.8 0.26 0.26 0.26 0.26 0.26
8 9.05 0.27 0.27 0.27 0.27 0.27
12 13.2 0.31 0.31 0.31 0.31 0.31
16 17.4 0.34 0.34 0.34 0.34 0.34
20 21.6 0.36 0.36 0.39 0.36 0.36
30 32 0.39 0.43 0.51 0.39 0.47
42 44.5 0.47 0.53 0.65 0.47 0.59
54 57.56 0.57 0.65 0.81 0.57 0.73
3 3.96 0.25 0.25 0.25 0.25 0.25
6 6.9 0.25 0.25 0.25 0.25 0.25
10 11.1 0.29 0.29 0.29 0.29 0.29
14 15.3 0.33 0.33 0.33 0.33 0.33
18 19.5 0.35 0.35 0.35 0.35 0.35
24 25.8 0.38 0.38 0.44 0.38 0.41
36 38.3 0.43 0.48 0.58 0.43 0.53
48 50.8 0.51 0.58 0.72 0.51 0.65

ASTM A674 Polyethylene Tube Size

Pipe Dia Polyethylene Flat Tube (cm)
4 14 (36)
8 20 (51)
12 27 (69)
16 34 (86)
20 41 (104)
30 67 (170)
42 81 (206)
54 108 (274)
64 121 (307)
3 14 (36)
6 16 (41)
10 24 (61)
14 30 (76)
18 37 (94)
24 54 (137)
36 81 (206)
48 95 (241)
60 108 (274)
Cast Iron Soil Test Evaluation As per AWWA C105 Standard

Cast Iron soil test evaluation as per AWWA C105 standard

Soil Characteristic Metric Range Points
Resistivity > 2,000 0
1,200-1,500 2
700-1,000 8
< 700 10
1,000-1,200 5
1,500-2,000 1
Potentia Negative 5
+50 to +100 3.5
> +100 0
0 to +50 4
pH > 8.5 3
6.5-7.5 0
2 – 4 3
4-6.5 0
7.5-8.5 0
0-2 5
Sulfides Negative 0
Positive 3.5
Trace 2
AWWA Standard List Of Cast Iron

AWWA Standard list of Cast Iron

  • AWWA C151
  • AWWA C501
  • AWWA C517
  • AWWA C560