|
 |
Advanced Testing... |
|
|
|
|
H755 Ultra Hard Alloy Bars
The tensile strength δb of H755 ultra high hard alloy developed by Hoshion is δb700MPa and hardness
200HV. H755 alloy doesnt contain such rare and precious metals as scandium, silver and zirconium which
determine itsadvantagesin low cost and common application. The strength of drawing bar made of H755
exceeds SUS303 stainless steel. The density of H755 is 1/3 of stainless steel; therefore, the weight of
same part can drop to 1/3 to make with H755 instead of SUS303. H755 completely meets RoHS standard,
and is easily recycled compared with stainless steel as the ideal environment protective material which
can substitute stainless steel. In some fields, it can benefit the light weight, relieve the pressure to
environment, resources and energy source to substitute stainless steel with H755.
Composition and Property of the Material
The main elements which added at melting process have copper,magnesium and zinc.It is shown after
X-ray diffraction analysis,meltallic composition of alloy is mainly aluminum-based solution and MgZn2.
Application Sample
The actual performance of ∮20, T6 bar provided to some client for substituting SUS303 is shown below:
|
Material |
Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation (%) |
Hardness (HV) |
|
H755 |
Assurance |
>700 |
>650 |
>8 |
>200 |
|
Actual |
740 |
700 |
10.5 |
215 |
|
SUS303 |
Assurance |
>520 |
>205 |
>40 |
>200 |
|
Actual |
665 |
400 |
28 |
230 |
|
SUM24 |
Assurance |
—— |
—— |
—— |
—— |
|
Actual |
640 |
550 |
12 |
—— |
Actual Mechanical Property
Drawing of Processing Product
The production efficiency of H755 T6 bar to process same product exceeds 3 times of that of SUS303,
and the cutter wear and requirements on cutter are much lower than SUS303. |
|
|
