| |
400-12 is a ductile iron grade in Australia standard AS 1831, which is equivalent to EN-GJS-400-15 and EN-GJS-400-18 in European standard.
The equal grades are EN 1563, 60-40-18 in USA standard ASTM A536, GGG40 in Germany standard DIN 1693, Grade 400-15 and 400-18 in ISO standard ISO 1083, QT400-18 in China standard GB 1348, FCD400 in Japan standard JIS G5502, 400/17 in UK standard BS 2789, etc.
The Chemical Properties of AS 1831 GRADE 400-12 Ductile Cast Iron:
Normally, the clients will not require the chemical composition, and in international standards, such as ISO 1083, ASTM A536, DIN 1693, UNI 4544 and AS 1831, there are no mandatory stipulation to the chemical composition. Actually, from different standards, their suggested chemical compositions are very different, but all of them denoted that the chemical composition should just be reference, and will not be taken as quality inspection standard.
Of course, if you need to stipulate the chemical composition to meet the special application, then you should denote the allowable chemical element range on the drawings or in your requirements.
The mechanical properties and microstructure of AS 1831 GRADE 400-12 Ductile Cast Iron:
AS 1831 |
Mechanical Properties |
Tensile Strength |
0.2% Proof Stress |
Elongation |
Brinell Hardness (HB) |
Microstructure |
Grade |
MPa min. |
MPa min. |
% min. |
min. |
max. |
400-12 |
400 |
250 |
12 |
130 |
180 |
Ferrite |
The application of AS 1831 GRADE 400-12 Ductile Cast Iron:
GRADE 400-12 is a very good material grade of ductile iron, which has good tensile strength and yield strength, and especially very high elongation rate.
This material is suitable for many industrial and civil fields. Such as automotive castings, truck and agricultural parts, various machinery casting parts, manhole covers, even for pump and valve parts.
|
|
