B 668 N08028 - Cast Iron and Cast Steel

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.（≤）
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 R_p0.2 (MPa)	Tensile strength R_m (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
523 (≥)	281 (≥)	33	33	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	344

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
291 (≥)	815 (≥)	44	42	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	433
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
249	154	129

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