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SM275B

2017-04-15T17:54:43+00:004월 15th, 2017|

SM275B — KS D3515 (Old SM400B)
Plate, Strip, Section, Flat. t≤200

Chemical composition(%. max.)
C : 0.20, t≤50
C : 0.22, 50<t≤200
Si : 035
Mn : 0.50~1.40
P : 0.030
S : 0.030

Mechanical properties(N/㎟, min.)
▶Yield point or Yield strength(YS)
t≤16 : 275
16<t≤40 : 265
40<t≤75 : 255
75<t≤100 : 245
100<t≤200 : 235
▶Tensile strength(TS) : 410~550

Charpy absobed energy : 0℃/27Joule min.
Ceq : 50≤t ——– 0.42 max.
Ceq : 50<t≤100 — 0.44 max.
TMC Ceq : 50≤t : –
TMC Ceq : 50<t≤100 : –
Pcm : 50≤t ——– 0.26 max.
Pcm : 50<t≤100 — 0.28 max.
TMC Pcm : 50≤t : –
TMC Pcm : 50<t≤100 : –

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