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CHARACTERISTICS OF LOW CARBON STEEL-SHOT
| General Appearance |
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Steel-shots must be as spherical as possible. The total of extended, stuck, tailed and cavity containing particles, broken pieces, leftovers like slag, which all accepted as harmful, must not be higher than 20%. |
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| Metallurgy Structure |
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The structure of low carbon steel-shot is a bainitic structure that is composed of ferrite and cementite particles. |
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| Hardness |
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The hardness of 90% of the tested shots is between 40-50 HRc.
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| Standart Packaging |
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In polyethylene and polypropylene bags of 25 kg, on stretched palettes tons. |
CHEMICAL COMPOSITION (SAE –J2175)
| Carbon |
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0.10 – 0.15 % |
| Manganese |
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1.20 – 1.50 % |
| Silica |
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0.10 – 0.25 % |
| Sulfur |
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0.035 % max |
| Phosphorus |
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0.035 % max |
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Low Carbon Steel-Shot
Bainitic microstructure is an ideal structure in cleaning of metal surfaces, other surface preparing processes and shot peening applications. It does not contain cooling cracks and internal tensile, it is a tough, not breakable structure.Low Carbon Steel-Shot with Bainitic microstructure has a bigger Impact effect,
better impact value higher hammering effect, good rebound effect, max. coverage effect min. abrasive losses, lower Maintenance Cost
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S-780 |
S-660 |
S-550 |
S-460 |
S-390 |
S-330 |
S-280 |
S-230 |
S-170 |
S-110 |
S-70 |
| SAE Mesh No |
Screen Opening |
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mm |
inc |
shot |
shot |
shot |
shot |
shot |
shot |
shot |
shot |
shot |
shot |
shot |
| 7 |
2.83 |
0.111 |
All pass |
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| 8 |
2.38 |
0.0937 |
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All pass |
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| 10 |
2.0 |
0.0787 |
85% min |
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All pass |
All pass |
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| 12 |
1.68 |
0.0661 |
97% min |
85% min |
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5% Max |
All pass |
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| 14 |
1.41 |
0.0555 |
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97% min |
85% min |
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5% max |
All pass |
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| 16 |
1.19 |
0.0469 |
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97% min |
85% min |
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5% max |
All pass |
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| 18 |
1.00 |
0.0394 |
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96% min |
85% min |
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5% max |
All pass |
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| 20 |
.84 |
0.0331 |
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96% min |
85% min |
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10% max |
All pass |
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| 25 |
.71 |
0.0280 |
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96% min |
85% min |
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10% max |
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| 30 |
.60 |
0.0232 |
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96% min |
96% min |
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All pass |
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| 35 |
.50 |
0.0197 |
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97% min |
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10% max |
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| 40 |
.42 |
0.0165 |
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85% min |
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All pass |
| 45 |
.35 |
0.0138 |
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97% min |
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10% max |
| 50 |
.30 |
0.0117 |
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80% min |
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| 80 |
.18 |
0.007 |
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90% min |
80% min |
| 120 |
.12 |
0.0049 |
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90% min |
| 200 |
.07 |
0.0029 |
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| CHARACTERISTICS |
REQUIRED |
TEST METHOD |
| Degree of Size |
Shown in the table. |
ISO 11125-2 |
| Hardness |
Metallic corrosives sometimes might contain drawing errors or cavities and this faulty measurement might be misleading in hardness determining. |
ISO 11125-3 |
| Visible Density |
minumum 7*10 Kg/ m3 |
ISO 11125-4 |
| Errors : |
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ISO 11125-5 |
| Particle Shape |
Maximum 15% shape defeat |
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| Cavity |
Max %15 |
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| Drawing Error |
Max %5 |
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| Crack |
Must not exist |
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| Total Error |
Max %20 |
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| Foreign Materials |
It can be maximum 1% |
ISO 11125-6 |
| Humidity |
Max %2 Max %2 Low Carbon corrosives should be stored in environments without humid. Otherwise, problems appear during using. |
ISO 11125-7 |
| Structure |
As structure, bainitic and martensitic structure has been accepted as the standard. |
ISO 11125-5 |
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These errors stated above should not be found in more than 15% of the tested sample. |
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| Chemical Composition |
Carbon %0.08-0.20
Manganese %0.35-1.50
Silicon %0.10-2.00
Sulfur Max %0.05
Phosphorus Max %0.05 |
ISO 9556
ISO 629
ISO 439
ISO 4935
ISO 10714
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