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Hi, Does anyone know the thermal expansion rate at 1000°C on Carbon steel. A rough figure will do.

Hi, I am wondering how to work out the thermal expansion calc of a ring with OD 1000mm and ID 800mm and L20mm. I I am heat treating a nickel alloy ring at 1000°C and I am wondering how much the ring will grow at the OD, ID and L at this temperature. I am only looking for a rough estimation...

Hi Guys, I was wondering if anybody knows Youngs modulus and Poissons ratio of Nimonic C-263. I have found a range of information but finding it difficult to determine anything definitive.

As the elastic modulus of Titanium(6Al4V) is lower than steel, will this produce more material movement when manufacturing components. For example, if I was machining/ heat treating/ processing a thin walled typical aerospace component from Titanium, would it tend to distort and move more...

Hi, I am looking to carry out turning machine trials on steel, using carbide and ceramic inserts to determine residual stress profiles, using a design of experiments framework. I am not overly familiar with the complexities of design of experiments and was hoping that someone could point me in...

The elastic modulus of grey cast iron is relatively low (approximately half that of steel and almost the same as titanium) and I was wondering why this is, considering that cast iron is particularly brittle. When dealing with titanium in a machining environment the material tends to move/...

I am a little confused as to the properties of cast iron. Generally in materials when the hardness increases there is a reduction in toughness, and vice versa. In cast iron the material is very brittle yet the hardness/tensile is also very low. Can you explian this? Also, one of the...

Hi, I work in the manufacture of aerospace components and I was looking for some advice on stable materials for fixturing these components. The fixtures can range from 200mm to 1200mm in diameter and between 30mm and 60mm thick. We currently manufacture from mild steel but are looking to get...

Hi, I work in the manufacture of aerospace components and I was looking for some advice on stable materials for fixturing these components. The fixtures can range from 200mm to 1200mm in diameter and between 30mm and 60mm thick. We currently manufacture from mild steel but are looking to get...

Hi Guys I am machining(turning) an aluminium alloy ring, just under 1.0m diameter x 150mm high. The ring starts with a wall section of around 20mm and it gets taken down to about 3-4mm. The issue that I am having is that after the operation, whilst still on the machine, the ring grows by...

Hi Guys I am machining(turning) an aluminium alloy ring, just under 1.0m diameter x 150mm high. The ring starts with a wall section of around 20mm and it gets taken down to about 3-4mm. The issue that I am having is that after the operation, whilst still on the machine, the ring grows by...

I was wondering if anyone could provide me with the main inclusion types for Nickel alloys. Do these vary from alloy to alloy. I have segregation defects such as white spots and freckles Could anyone elaborate as to the effect on mechanical properties of the inclusions ie. Oxides and...

Does anyone have experience with Inco 907. I have a forging and it appears to be magnetic and also does not have any corrosion resistance. I appreciate that this is an Iron based alloy but it also has a high Nickel content which I thought would make the part non magnetic. An explanation as to...

Hi, I am looking at the effects of corrosion resistance of Inconel 600 and 690 and I was wondering if someone could answer a question for me. Most material specs states that the material is not heat treatable and that it gets supplied in the annealed or cold woked condition but I have then...

Hi, This is a very basic question on stress strain so I am hoping that I will find the answer. I have conducted a tensile test and have the load values in Newtons. I want to plot the results in stress/ strain graph I have calculated the different engineering stresses with the formula:S=...

I was hoping that someone could give me some info on how to work out the air cooling rate of a metal to room temperature. If there is a rule of thumb instead of a particular equation then that would be fine also. I am tempering tool steel from 500°C and the components are Ø600 x 8mm thick and...