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☆ Maximum carbon equivalent for weldability
| specified mimimum UTS | maximum carbon equivalent value | |
| ksi[MPA] | thickness up to 2 in.[50 mm] incl | thickness over 2 in.[50 mm] |
|
60≤UTS ＜70 [541≤UTS ＜485] 70≤UTS ＜80 [485≤UTS ＜550] UTS ≥80 [UTS ≥550] |
0.45
0.47
0.48 A,B |
0.46
0.48A
... |
|
A If simulated PWHT of the test coupons in specified(S3),the maximum carbon equivalent value may be increased up to 0.50 upon agreement between purchaser and supplier. B Applicable to quenched-and-tempered material;for other conditions,maximum carbon equivalent shall be by agreement between purchaser and supplier. |
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