B 668 N08028

B 668 N08028 Stainless Steels to B 668 (2010)

B 668 N08028 - Specification & Application

  • B 668 (2010) - UNS N08028 Seamless Pipe and Tube

UNS N08028 Seamless Pipe and Tube

Chemical composition(wt.%) of B 668 N08028 grade: to B 668 (2010)

Elements Min.（≥） Max.（≤） Similar Remarks
C - 0.02
Mn - 2.00
Si - 1.00
P - 0.02
S - 0.015
Cr 26.00 28.00
Ni 29.50 32.50
Mo 3.00 4.00
Cu 0.60 1.40

B 668 N08028 - Detail

UNS N08028 Seamless Pipe and Tube

Mechanical properties of grade B 668 N08028 B 668 (2010)

Proof strength
Rp0.2 (MPa)		 Tensile strength
Rm (MPa)		 Impact energy
KV (J)		 Elongation at fracture
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
488 (≥) 917 (≥) 33 12 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical properties of grade B 668 N08028 B 668 (2010)

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm		 Modulus of elasticity
kN/mm2		 Expansion rate
189 (≥) 563 (≥) 41 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 334
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
591 932 827

Equivalent Grade

1 Stellite 228 2 1.2328 3 0.2823 4 0.2826 5 1.2833 6 1.2838 7 1.2842 8 1.2880 9 1.2884 10 28NiCrV5 11 B 668 N08028 12 B 709 N08028 13 N08028 14 SB-668 N08028 15 SB-709 N08028 16 GH3128 17 A 276 XM-28 18 A 313 Type XM-28 19 A 314 XM-28 20 A 580 Type XM-28

Equivalent Products

1 IncoloyA-286 / GH 2132 2 S66286 round bar 3 1.4980/A286/660/1.2779 4 Stainless Steel 446(1.4749, X18CrN28, UNS S44600) Tube Pipe 5 28NiCrMoV8-5(1.6932) ESR Round Bar 6 Alloy 28 Bright Bar 7 N08028 Tube

Product shapes we supply:

We can customize the production of B 668 N08028 grade, contact us for the best solution.
–sales@specificsteel.com