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CS 1030 burst failure

CS 1030 burst failure

CS 1030 burst failure

(OP)
Could somebody inform me of the maximum tip velocity,
(Peripheral Speed)in meters/sec of CS 1030 Bright steel, it is an Australian grade steel.

I need to make sure it is suitable for the intended application & i don't want to exceed the burst failure limit.

How does heat have an affect on this figure.

I know i could use 4140,4130 or simillar grades but i don't think this would be required for this application--just want to make sure.
Any help with this would be appreciated.    Thanks

RE: CS 1030 burst failure

I don't have the equation, but the YS of annealed/normalized 1030 steel is pretty low-50 ksi unless its very thin.

The YS will drop pretty fast with temp.  Some heats can lose ~25% of room temp. YS by 500-600 deg.F.

RE: CS 1030 burst failure

1030 CS YS almost a straight line from a 400°F temper to 1200°F temp after normalizing @ 1700°F then reheating to  1600°F with a water quench.
Temper °F      TS          YS      El
400          122,000     93,000    18%

800          108,000     85,000    22%

1200          75,000     58,000    345

RE: CS 1030 burst failure

(OP)
Thanks guy's

Metal guy: what is ksi?.

unclesyd:

Just to make sure i have this right: correct me if i'm wrong

Ts  = tensile strength
ys  = yield   strength
El  = Elongation

Is this correct.

Is there a site where i can get the equation to work out the max tip velocity to prevent burst failure.
I need to know how fast i can spin these parts without any trouble.
                          THANKS

RE: CS 1030 burst failure

You are correct.
Ts  = tensile strength
ys  = yield   strength
El  = Elongation

RE: CS 1030 burst failure

ksi is psi times 1,000.  It is a very common way to get rid of all those zeros.

You should be aware that size can have a great effect on the HT of steel.  A plain carbon steel like 1030 will only develop moderately high strength if the thickness is no more than an inch or so.

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