B.S. 1.4028

Grades | Stainless Steels | 1.4028

B.S. 1.4028 ( Martensite )

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1.4028 Application:Open die steel forgings for general engineering purposes - Part 4: Stainless steels

Chemical composition(mass fraction)(wt.%) of the 1.4028
Elements Min.（≥） Max.（≤） Similar Remarks
C 0.26 0.35
Si - 1.00
Mn - 1.50
P - 0.04
S - 0.015
Cr 12.00 14.00
Ni - -
Mo - -

Mechanical properties of grade 1.4028

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition HBW
612 (≥) 623 (≥) 32 24 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical properties of grade 1.4028

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm
975 (≥) 775 (≥) 33 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2		 - - -
437 917 751 - - -

1.4028 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED