This standard is applicable to sand-casting grey iron castings or
grey iron castings whose thermal conduction is equivalent to
sand-casting grey iron castings. This standard can also be referred
by grey iron castings of other molds.
GB9439-88 Gray Iron Castings Mechanical Properties Form
Number |
Tensile strength for
reference |
mechanical properties of attached test coupon (block) |
wall thickness of casting/mm |
Tensile strength
σb≥/Mpa
|
wall thickness of casting / Mm |
Tensile strength σb≥/Mpa
|
≥ |
≤ |
≥ |
≤ |
attached test coupon |
attached to test block casting |
Castings
(reference) |
Ø30mm |
Ø50mm |
R15mm |
R25mm |
HT100 |
2.5 |
10 |
130 |
|
|
|
|
|
|
|
10 |
20 |
100 |
|
|
|
|
|
|
|
20 |
30 |
90 |
|
|
|
|
|
|
|
30 |
50 |
80 |
|
|
|
|
|
|
|
HT150 |
2.5 |
10 |
175 |
20 |
40 |
130 |
120 |
120 |
|
165 |
10 |
20 |
145 |
40 |
80 |
115 |
115 |
110 |
|
105 |
20 |
30 |
130 |
80 |
150 |
|
105 |
|
100 |
90 |
30 |
50 |
120 |
150 |
300 |
|
100 |
|
90 |
80 |
HT200 |
2.5 |
10 |
220 |
20 |
40 |
180 |
155 |
170 |
|
165 |
10 |
20 |
195 |
40 |
80 |
160 |
155 |
150 |
|
145 |
20 |
30 |
170 |
80 |
150 |
|
145 |
|
140 |
130 |
30 |
50 |
160 |
150 |
300 |
|
135 |
|
130 |
120 |
HT250 |
4.0 |
10 |
270 |
20 |
40 |
220 |
|
210 |
|
205 |
10 |
20 |
240 |
40 |
80 |
200 |
190 |
190 |
|
180 |
20 |
30 |
220 |
80 |
150 |
|
180 |
|
170 |
165 |
30 |
50 |
200 |
150 |
300 |
|
165 |
|
160 |
150 |
HT300 |
10 |
20 |
290 |
20 |
40 |
260 |
|
250 |
|
245 |
20 |
30 |
250 |
40 |
80 |
235 |
230 |
225 |
|
215 |
30 |
50 |
230 |
80 |
150 |
|
210 |
|
200 |
195 |
|
|
|
150 |
300 |
|
195 |
|
185 |
180 |
HT350 |
10 |
20 |
290 |
20 |
40 |
300 |
|
290 |
|
285 |
20 |
30 |
250 |
40 |
80 |
270 |
265 |
260 |
|
255 |
30 |
50 |
230 |
80 |
150 |
|
240 |
|
230 |
225 |
|
|
|
150 |
300 |
|
215 |
|
210 |
205 |
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