Allowable stress value of A105

Question

Allowable stress value of A105

AliGrailly (Mechanical)

(OP)

4 Jan 21 17:43

How Calculate the Allowable stress value Of Flange A105 At 93 Degree (Celcius ) ?

MrPSK (Materials) · Answer 1 · 2021-05-25 08:41:23

What is your Question?
1. Do you want to calculate? or
2. Do you need the value?

weldstan (Materials) · Answer 2 · 2021-05-25 13:50:21

Allowable stress value are provide i the Tables for ASME I, VIII, in ASME II and in the Tables in B31.1 and B31.3.

AliGrailly (Mechanical) · Answer 3 · 2021-11-06 16:54:49

RE: Allowable stress value of A105

AliGrailly (Mechanical)

(OP)

6 Nov 21 16:54

i need value if possible

mk3223 (Mechanical) · Answer 4 · 2021-11-06 17:14:59

For reference, per B31.3, the Sa of A105 in terms of temperature are:

65 Deg-C: 156 MPa
100 Deg-C: 151 MPa
150 Deg-C: 146 MPa

AliGrailly (Mechanical) · Answer 5 · 2021-11-06 17:16:57

RE: Allowable stress value of A105

AliGrailly (Mechanical)

(OP)

6 Nov 21 17:16

Thanks

What about at 93 Deg?

r6155 (Mechanical) · Answer 6 · 2021-11-07 15:06:26

You're supposed to be an engineer right?.

Regards

LittleInch (Petroleum) · Answer 7 · 2021-11-07 21:45:06

You extrapolate between the two nearest temperatures in a straight line

So about 152 MPa

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

AliGrailly (Mechanical) · Answer 8 · 2021-11-08 07:46:55

so, As much as increase Degree happened decrease stress in tension and we have to consider value of the highest temp than that if not available in table

LittleInch (Petroleum) · Answer 9 · 2021-11-08 08:23:55

Look up the word "extrapolate"

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

AliGrailly (Mechanical) · Answer 10 · 2021-11-08 09:55:12

Thanks everybody helping me

Finally

X=(93−100)×(156−151)÷(65−100)+151=152Mpa

**guest0821** (visitor) · Answer 11 · 2021-11-08 18:55:09

Finally!

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Allowable stress value of A105