[MW:9823] RE: 9821] SA 516 Gr.60 high in manganese-accept or reject

Dear Krishna,

 

Acceptation depends on the carbon content of your material. Table 1 of SA516 shows a limit of 0.55 – 0.98 (product) for Mn, but when you look at the front of the table there is a remark B. Look at this remark and you will see that the max. allowed Mn content may be higher as the given limits, even up to 1.60 % (product analyses), when there is less carbon present than the max. 0.21%. For each 0.01 % less carbon you may add 0.06 Mn to the upper limit, this means that the max. allowed carbon content will be 0,13%. If that is the fact than you can accept the material, if not you should reject it.

 

Met vriendelijke groeten / Best Regards

 

Herman Pieper

 

Pieper Quality Support & Inspection

Phone: +31 (0)521 380083

Fax:     +31 (0)84 7539225

Cell:     +31 (0)6 51691215

www.pieper-qsi.nl

 

Van: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] Namens krishna
Verzonden: vrijdag 11 februari 2011 12:32
Aan: materialswelding
Onderwerp: [MW:9821] SA 516 Gr.60 high in manganese-accept or reject

 

Dear all,
                  We have received MTC for SA 516 Gr.60 plate of 10mm thickness with manganese of 1.47%,the lab test also give the same.

is it acceptable as per SA 516 SPEC.

Please confirm shall we accept or reject the plates,we have procured more tonnes of materails & started fabrication?

what shall we do in this stage?

How to overcome this issue ,pls guide

krishna

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