Brinell Hardness Values
Brinell Hardness Values
(OP)
Can anyone point me to the literature which gives brinell hardness acceptable ranges for materials. Thanks in advance for any help.
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RE: Brinell Hardness Values
One thing to consider-- not all metals are typically measured for hardness using the Brinell scale. There are several documents that give hardness conversions. ASTM E 140 is THE official standard, along with DIN 50150. SAE J417 is also appropriate. All of these documents can be obtained from Global Engineering Documents at http://global.ihs.com or from the original publishers:
ASTM http://www.astm.org
DIN http://www.beuth.de
SAE http://www.sae.org
RE: Brinell Hardness Values
Thanks for the help, but I have already looked into those areas, my company subscribes to all of them. I am still not able to find a high and low end brinell (regardless of units) for SA335 P91. I have read SA335 front to back and even looked at the similar spec in plate. No reference what so ever for the hardness.
RE: Brinell Hardness Values
So if you can find a strength range for the material, which I am sure is given, you can convert to Brinell hardness. There are also charts which can compare the Brinell to any of the other hardness methods.
RE: Brinell Hardness Values
I've found the best source for specifying minimum and maximum hardness values are your suppliers. They're not going to want you to spec something they can't deliver. Most can also provide you with some pretty good technical literature. I've got an excellent technical resource text from Corus and another from EMJ that didn't cost me a penny.
For Inco alloys www.specialmetals.com provides extensive information on their web site. www.matweb.com is another web site that provides good general info.
NACE specifies some material requirements for various service. NACE MR0175, for example, provides maximum hardness values for a wide variety of material for H2S service.
API 6A provides hardness requirements for various oilfield equipment. ASME B&PVC does the same for some of the materials used in pressure vessels. ASTM was allready mentioned.
RE: Brinell Hardness Values
RE: Brinell Hardness Values
Lower hardness could be 170BHN baseed on tensile strength. However it can not be verified
what should be hardness for P91 material is still an issue.
RE: Brinell Hardness Values
RE: Brinell Hardness Values
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RE: Brinell Hardness Values