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F256 K91800

Favorite Datasheet

America ASTM F256K91800 Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromium and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: F256K91800 / F256 K91800
Category Grade Standard Region/Area Standard Content
Metals F256 K91800 ASTM F256 America Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromium

Chemical composition(mass fraction)(wt.%) of the F256 K91800

Element Min Max Similar
C - 0.0800 -
Mn - 1.0000 -
P - 0.0400 -
S - 0.0300 -
Si - 0.7500 -
Ni - 0.5000 -
Cr - 18.0000 -
Ti - 0.6000 -
Fe - - -

Mechanical Properties of steel grade F256 K91800

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
262 (≥) 523 (≥) 21 14 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade F256 K91800

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
14 - -     0.42 -  
767 341 - 13.3 233   -  
311 - 14 24.2   414 412

Heat Treatment of steel grade F256 K91800

Heat treated : 1934°C - 1874°C

Technological Curves of steel grade F256 K91800

Cross Reference Table (Equivalent Grade) of F256 K91800

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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