9Cr18Mo black metal sheet

1.Higher hardness and wear resistance, 2.Corrosion resistance,dimensional stability 3.High carbon chromium stainless steel

 Specification

1. 9Cr18Mo forged steel bar

2. higher hardness, high wear resistance, corrosion resistance, the steel also hasgood high-temperature dimensional stability, suitable for manufacture in the corrosive environment conditions that require high load, high wear resistance of plastic mold

3. Chemical composition

C	Si	Mn	Cr	Mo	S	P
0.95~1.10	≤0.80	≤0.80	16.0~18.0	0.40~0.70	≤0.030	≤0.035

4. physical performance9Cr18Mo steel physical properties are shown in Tables , its thermal conductivity (20 ° C) λ is 29.3W / (m • K).

9Cr18Mo steel critical temperature

Critical point	Ac1	Ar1	Ms
Temperature (approx.) / ° C	815~865	765~665	145

.

9Cr18Mo steel expansion coefficient

Temperature / ° C	20~100	20~200	20~300	20~500
(steel expansion coefficient) / ° C-1	10.5×10-6	11.0×10-6	11.0×10-6	12.0×10-6

5.9Cr18Mo steel thermal processing

Project	heating temperature / ° C	start temperature / ° C	end temperature / ° C	cooling
Ingot	1130~1150	1080~1095	850~900	sand cold
Billet	1100~1120	1050~1080	850~900	sand cold