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Brinell readings acceptable highs and lows for Refinery heater tubes

Thread starter insp76
Start date Nov 9, 2012

Status: Not open for further replies.

Nov 9, 2012

insp76

Petroleum

Concerning Heater tubes, are there acceptable Brinell hardenss limits, high and low for safe operation.
I would like to know the acceptable high and low limits or good Engineering practice for 1.25cr, 5 cr and 9 cr tubes in refinery service. Any help would be appreciated, thanks.