![](https://img5.grofrom.com/www.axtjcastings.com/uploads/Grate-Bar5.jpg)
![](https://img5.grofrom.com/www.axtjcastings.com/uploads/Grate-Bar6.jpg)
C | Si | Mn | Ni | P | S | Cr | Mo |
1.2 - 1.4 | 1 - 2.5 | 0.5 - 1 | max 1 | max 0.035 | max 0.03 | 27 - 30 | max 0.5 |
C | Si | Mn | Ni | P | S | Cr | Mo |
0.3 - 0.5 | 1 - 2.5 | max 1.5 | 3 - 6 | max 0.04 | max 0.03 | 25 - 28 | max 0.5 |
C | Si | Mn | Ni | P | S | Cr | Mo |
0.3 - 0.5 | 1 - 2.5 | max 2 | 19 - 22 | max 0.04 | max 0.03 | 24 - 27 | max 0.5 |
C | Si | Mn | Ni | P | S | Cr | Mo |
0.3 - 0.5 | 1 - 2.5 | max 2 | 11 - 14 | max 0.04 | max 0.03 | 24 - 27 | max 0.5 |
Mechanical properties(ASTM A297 Grade HH)1.4837 | UTS: Min 75 Ksi/515 Mpa |
YS: Min 35 Ksi/ 240 Mpa | |
Elongation: in 2 in: Min 10 % | |
Hardness: Min 200 BHN (3 places on speciment)" | |
Microstructure/Metallography | Predominantly Austenitic structure containing dispersed carbides |
SoundnessTest/X-ray or UT | RT per ASTM E446 Level II |
UT per ASTM A609 Level II | |
NDT/LPI or MPI | MPI as per ASTM E709/E125 LEVEL II |
LPI as per ASTM E165 Level II" | |
Final Visual Inspection | ASTM A802 Level II |
Package | Iron case or Wooden case. |
![](https://img5.grofrom.com/www.axtjcastings.com/uploads/Grate-Bar7.jpg)
![](https://img5.grofrom.com/www.axtjcastings.com/uploads/Grate-Bar81.jpg)
![](https://img5.grofrom.com/www.axtjcastings.com/uploads/Grate-Bar9.jpg)
Different kinds of OEM grate bars
Well finished grate bars
![](https://img5.grofrom.com/www.axtjcastings.com/uploads/Grate-Bar10.jpg)