MSE PRO Milling Media Set for 1L (1000 ml) 440C SS Planetary Mill Jar
440C SS Media Set for 1L (1000 ml) Planetary Mill Jars
Contains: 12 pieces 20 mm, 239 pieces 10 mm, and 1145 pieces 5 mm 440C SS milling media balls for optimal milling.
Product SKU#: BA0771
Polished 440C stainless steel is a high carbon steel with moderate corrosion resistance. 440C stainless steel grinding media balls have the highest strength and wear resistance among all the stainless steel alloys due to its high carbon content. The high wear resistance and strength make it a good choice for milling media, 440C is also used for ball bearings and valve parts. Good resistance to the atmosphere, fresh water, foods, alkalies and mild acids. The corrosion resistance of grade 440C approximates that of grade 304 in many environments.
General Description for 440C Stainless Steel Grinding Media
- Material: 440C Stainless Steel (304 stainless steel, 316 stainless steel, and chrome steel grinding balls are available)
- Grade: ASTM/ASTE S44004
- Density: 7.8 g/cm3
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CHEMICAL COMPOSITION |
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CHROMIUM |
17% |
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CARBON |
1.1% |
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MANGANESE |
1% |
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SILICON |
1% |
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MOLYBDENUM |
0.75% |
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Iron |
79.15% |
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MECHANICAL PROPERTIES |
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TENSILE STRENGTH |
110,000 TO 286,000 PSI |
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YIELD STRENGTH (@ strain 0.200%) |
65300-276000 psi |
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ELONGATION AT BREAK |
2-14 % |
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BULK MODULUS |
24100 ksi |
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MODULUS OF ELASTICITY |
29008 ksi |
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DENSITY |
.282 LBS./CU.IN. |
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HARDNESS (Rockwell B) |
97 |
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PHYSICAL CHARACTERISTICS |
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CORROSION RESISTANCE |
GOOD |
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MAGNETIC |
YES |