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BS 1452 for Gray Iron Castings

A source of confusion is the large number of production standards that have grown up across the world to enable buyers to specify a particular grade. To take the UK as an example one of the earlier standards used was BS 1452. Within this standard the grades were specified by tensile strength in tons/in². This was changed to N/mm² as the UK went through metrification and the tensile strengths were adjusted slightly to fall in line with their European equivalents.

Equivalent Standards to BS 1452:

China 

  GB/T 9439-1998  

France 

  NF A32-101(1997)/NF EN 1561:1997  

Germany 

  DIN 1691-1985  

ISO 

  ISO 185:1988  

Japan 

  JIS G5501(1995)  

Korea 

  KS D4301-1985  

Russia 

  ГOCT 1412-1985  

USA 

  ASTM A48-2000/ASTM A159-1993/ASTM A319-1995  

Content of Standard of BS 1452: 

The gray iron grade and tensile strength of single test specimen. 

Gray Iron Grade

Tensile Strength
σb≥/Mpa

100

≥100

150

≥150

180

≥180

200

≥200

220

≥220

250

≥250

300

≥300

350

≥350

 Tensile Strength of Gray Iron Casting in BS 1452

Grade

Wall Thickness of Casting
/mm

Tensile Strength σb≥/Mpa

Test Bar with Casting

Casting

100

2.5~10
10~20


120
90

150

2.5~10
10~20
20~40
40~80
80~150
150~300



120
110
100
90

155
130
110
95
80

180

2.5~10
10~20
20~40
40~80
80~150
150~300



150
135
125
100

185
160
135
115
100

200

2.5~10
10~20
20~40
40~80
80~150
150~300



170
150
140
130

205
180
155
130
115

220

2.5~10
10~20
20~40
40~80
80~150
150~300



175
165
150
140

220
195
170
145
130

250

5~10
10~20
20~40
40~80
80~150
150~300



210
190
170
160

250
225
195
170
155

300

10~20
20~40
40~80
80~150
150~300


250
220
210
190

270
240
210
195

350

10~20
20~40
40~80
80~150
150~300


290
260
230
210

315
280
250
225


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