EN 1559-2 chemical composition explanation
EN 1559-2 chemical composition explanation
(OP)
Hello,
Would there be anyone to help me understand section 7.2.1 Chemical composition from EN 1559-2?
I have national version of that standard so I apologize for my reverse translating to English.
Or if there would be someone to paste english(or german) version of that section?
Text
"Acceptable diferences between specified melt anylysis and control analysis of test block are shown in table 1."
Does the section mean:
1) acceptable diferences in chemistry between chemical composition of melt sample and chemical composition of casting (for example melt smaple Mn 1.50%, casting 1.55%)
or
2) acceptable diferences in chemistry between chemical composition of melt sample and chemical composition from material standard (for example melt smaple Mn 1.50%, material standard 1.25-1.45%).
Or is there another explanation?
Thanks in advance
Dalin
Would there be anyone to help me understand section 7.2.1 Chemical composition from EN 1559-2?
I have national version of that standard so I apologize for my reverse translating to English.
Or if there would be someone to paste english(or german) version of that section?
Text
"Acceptable diferences between specified melt anylysis and control analysis of test block are shown in table 1."
Does the section mean:
1) acceptable diferences in chemistry between chemical composition of melt sample and chemical composition of casting (for example melt smaple Mn 1.50%, casting 1.55%)
or
2) acceptable diferences in chemistry between chemical composition of melt sample and chemical composition from material standard (for example melt smaple Mn 1.50%, material standard 1.25-1.45%).
Or is there another explanation?
Thanks in advance
Dalin





RE: EN 1559-2 chemical composition explanation
I'm just one step away from being rich, all I need now is money.
( read somewhere on the internet)
RE: EN 1559-2 chemical composition explanation
RE: EN 1559-2 chemical composition explanation
For example, if the material specification is Mn 1.25-1.45, then the melt analysis must be in this range.
The control analysis of the test block (product analysis) must meet the material specification, but there is often an added tolerance applied to the specified analysis (apparently in Table 1) when verifying to conformance to the sepcification.
For example, if Table 1 shows Mn +/- 0.10, then the product analysis of the test coupon would have to be in the range 1.15-1.55.
I do not have a copy of the standard, so I am just guessing at what it actually says, but this is typical.
rp
RE: EN 1559-2 chemical composition explanation
ASTM A 703 M -06
Standard Specification for
Steel Castings, General Requirements, for Pressure- Containing Parts1
I'm just one step away from being rich, all I need now is money.
( read somewhere on the internet)
RE: EN 1559-2 chemical composition explanation
The additional allowance is in recognition of the fact that the melt chemistry is a very small sample for a large heat.
I have come across many customer specifications over the years that prohibit the use of the additional tolerance. So read carefully.
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Plymouth Tube
RE: EN 1559-2 chemical composition explanation
That A703 reference was great. It is actually more explaining than EN standard.
Dalin