The comparison of technical index between SG-2 Industrial Gas and acetylene gas:
| Item |
SG-2 |
Acetylene gas |
Maximum flame temperature( ℃) |
3410 |
3150
|
Calorific value(Kal/ m3) |
23740~23840 |
13720~14160 |
Boiling point(℃) |
-42 |
-63 |
Burning point(℃) |
465 |
305 |
Speed of combustion (in the air )(m/s) |
4.5 |
7.5 |
Explosion limiting range (in the air )(v/v) |
2.0~9.8 |
2.5~82 |
CO(mg/m3) |
4.6(＜30) |
|
CO2(ppm) |
1086(＜15mg/m3) |
|
NOX(mg/m3) |
3.25(＜5) |
|
H2S(mg/m3) |
＜0.53 |
＜1518 |
PH3(mg/m3) |
＜0.3 |
＜1213 |
Preheating time for cutting 12mm steel plate(s) |
2~3 |
3~4 |
Preheat time of boring(s) |
5~8 |
11 |
The max thickness of the metal to be cunt(mm) |
45/150/450 |
30/100/300 |
The quality of cutting |
Smooth |
Rough,collapsed sides ang dregs |
Tensile strength(bN/mm2) |
490 |
365 |
Cold curving angle(degree) |
180 |
90 |
Speed of hot correcting (50mm stell palte)(m/h) |
7 |
4 |
Backfire rate |
No |
Have |
