EVl7 - Cast Iron and Cast Steel

EVl7 Stainless Steels

EVl7 - Specification & Application

Steel for exhaust valves

Chemical composition(wt.%) of EVl7 grade:

Elements	Min.（≥）	Max.（≤）
C	-	0.10
Si	-	1.00
Mn	-	2.00
P	-	0.045
S	-	0.030
Cr	17.0	19.0
Ni	8.00	10.0
Cu	3.00	4.00

EVl7 - Detail

Steel for exhaust valves

Mechanical properties of grade EVl7

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)
478 (≥)	639 (≥)	33	13	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	131

Physical properties of grade EVl7

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
765 (≥)	244 (≥)	21	33	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	114
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
526	111	729

Equivalent Grade

1 UNS S30430 2 SAE EVl7 3 302HQ 4 A 493 S30430 5 A 959 S30430 6 F 837 Class A1-50 S30430 7 F 837 Class A1-55 S30430 8 F 837 Class A1-70 S30430 9 F738 Class A1-70 S30430 10 F738 Class A1-50 S30430 11 F738 Class A1-80 S30430 12 F836 Class A1-50 S30430 13 F836 Class A1-50 S30430

Equivalent Products

Product shapes we supply:

We can customize the production of EVl7 grade, contact us for the best solution.
–sales@specificsteel.com