Carbon Equivalents
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Transcript of Carbon Equivalents
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Kenton Dechant, P.Eng.
Quality Manager TEL: +001(
Bri-Chem Steel Corporation FAX: +001(
3707 - 75 Avenue CELL: +00
Last Updated: 2009 Oct 20 Leduc AB T9E 0K3 kdechant@
Carbon Equivalent CSA Z245.1-07 %C F
Carbon Equivalent CSA Z245.11-05 0.00 0.53
Carbon Equivalent CSA Z245.12-05 0.06 0.54
Assumed Value Factor Factored Weight Weighted 0.07 0.56
C 0.26 /1 0.260 x1 0.260 0.08 0.58
Mn 0.66 /6 0.110 x1 0.110 0.09 0.62
Si 0.30 0.15 /24 0.006 x1 0.006 0.10 0.66
Cu 0.010* 0.250 /15 0.017 x1 0.017 0.11 0.70
Ni 0.010 0.060 /20 0.003 x1 0.003 0.12 0.75
Cr 0.010 0.050 /5 0.010 x1 0.010 0.13 0.80
Mo 0.010 0.002 /5 0.000 x1 0.000 0.14 0.85
V 0.005 0.005 /5 0.001 x1 0.001 0.15 0.88
Nb 0.005 0.005 /5 0.001 x1 0.001 0.16 0.92
B 0.0005 0.0005 x5 0.003 x1 0.003 0.17 0.94
Ti 0.010 0.010 - 0.41 CE 0.18 0.96
S 0.030 0.030 - 0.19 0.97
P 0.030 0.015 - 0.20 0.98
*assume 0.2 for recycled steel 0.21 0.99
0.22 1.00
Other measurables: Desired Explanation (also click on the hyperlinks)
High C and low Mn (i.e., a low Mn/C ratio) result in a lower CVN tran
2.5 >2.5 For -30C, use Mn:C of 2.5 or higher For -60C, use Mn:C o
Mn binds up residual S, so that the S doesn't form FeS, which caus
22.0 >20 loses ductility and may have hot shortness.
a Mn / Si ratio less than 8:1 may make ERW pipe strip more prone t
4.4 < 8
a Ni / Cu ratio of 1:3 reduces the likelihood of copper hot-shortness
0.2 >0.33 This is only a concern if the product remains at the hot-working tem
If these elements are above 0.03%, then they are likely intentional
Microalloyed - If they are not stated on the MTR, but the strength seems abnormall
Nickel/Copper Ratio
V, Nb or Ti above 0.03%?
Manganese / Carbon Ratio
Manganese / Sulfur Ratio
Manganese / Silicon Ratio
CSA
mailto:[email protected]://books.google.com/books?id=jN34RAqTA-8C&pg=PA34&lpg=PA34&dq=hot+short+copper+steel&source=bl&ots=PhBeNM3P95&sig=G0AFdPk3x84os4R8Yk5yAS9-6IU&hl=en&ei=r_A3Sp6bIIzasgPE4Yj-Bg&sa=X&oi=book_result&ct=result&resnum=3http://www.cbmm.com.br/portug/sources/techlib/info/charact/charact.htmhttp://books.google.com/books?id=pt5lzxOy4UAC&pg=PA540&lpg=PA540&dq=%22manganese+carbon+ratio%22+steel&source=bl&ots=xNYyr559mP&sig=whu6aOv7UoJdJK6O_ZZDjEpWuMU&hl=en&ei=acOtSdLaNIKOsQOozczHBA&sa=X&oi=book_result&resnum=1&ct=resulthttp://books.google.com/books?id=gWg-rchM700C&pg=PA46&lpg=PA46&dq=%22manganese+sulfur+ratio%22+steel&source=bl&ots=xGFcmEUCsm&sig=CI8NfcMBUnZvh-OHKszPwvcVYFM&hl=en&ei=-cOtSZe-GpKWsQOykMHRBA&sa=X&oi=book_result&resnum=5&ct=resulthttp://books.google.com/books?id=gWg-rchM700C&pg=PA46&lpg=PA46&dq=%22manganese+sulfur+ratio%22+steel&source=bl&ots=xGFcmEUCsm&sig=CI8NfcMBUnZvh-OHKszPwvcVYFM&hl=en&ei=-cOtSZe-GpKWsQOykMHRBA&sa=X&oi=book_result&resnum=5&ct=resulthttp://books.google.com/books?id=pt5lzxOy4UAC&pg=PA540&lpg=PA540&dq=%22manganese+carbon+ratio%22+steel&source=bl&ots=xNYyr559mP&sig=whu6aOv7UoJdJK6O_ZZDjEpWuMU&hl=en&ei=acOtSdLaNIKOsQOozczHBA&sa=X&oi=book_result&resnum=1&ct=resulthttp://www.cbmm.com.br/portug/sources/techlib/info/charact/charact.htmhttp://books.google.com/books?id=jN34RAqTA-8C&pg=PA34&lpg=PA34&dq=hot+short+copper+steel&source=bl&ots=PhBeNM3P95&sig=G0AFdPk3x84os4R8Yk5yAS9-6IU&hl=en&ei=r_A3Sp6bIIzasgPE4Yj-Bg&sa=X&oi=book_result&ct=result&resnum=3mailto:[email protected] -
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780) 980-0015
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Carbon Equivalent (IIW) Carbon Eq
Carbon Equivalent ASTM A106 Supplementary S6 Carbon Eq
Carbon Equivalent API 5L if %C is less than 0.12
Carbon Equivalent NACE RP0472 / NACE 8X194
C
Assumed Value Factor Factored Mn
C 0.26 /1 0.260 Si
Mn 0.66 /6 0.110 Cu
Cu 0.010 0.250 /15 0.017 Ni
Ni 0.010 0.060 /15 0.004 Cr
Cr 0.010 0.050 /5 0.010 Mo
Mo 0.010 0.002 /5 0.000 V
V 0.005 0.005 /5 0.001 B
0.40 CE
sition temperature For explanation of alloying content, see
f 4.5 or higher http://www.metallurgvanadium.com/contents.
You have to fill out the registration form, but
s the steel to be brittle, I've never received any spam from these guy
and the content is excellent
o liquidity defects
pon hot working of carbon steels.
erature for a significant amount of time.
icroalloy additions.
y high, microalloying may be the cause.
IIW P
Carbon Equivalent
Calculator
http://www.metallurgvanadium.com/contents.htmlhttp://www.metallurgvanadium.com/contents.html -
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uivalent (Pcm)
uivalent API 5L if %C is greater than or equal to 0.12
Assumed Value Factor Factored
0.26 /1 0.260
0.66 /20 0.033
0.30 0.15 /30 0.005
0.010 0.250 /20 0.013
0.010 0.060 /60 0.001
0.010 0.050 /20 0.003
0.010 0.002 /15 0.000
0.005 0.005 /10 0.001
0.0005 0.0005 x5 0.003
0.31 CE
tml
Enter data into the yellow cells
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