S-136 is the common name of STAVAX ESR, one of the best-selling products of STAVAX.Why is it called "136"? It is rumored that the material is [TJC STEEL]expensive, with the price as high as 136 yuan per kilogram.

 

National Standard

CHINA	GB/T 20878-2007	40Cr13（4Cr13）
AMERICA	ASTM A276-2017	UNS S42000，420
JAPAN	JIS G 4303:2005	SUS 420J2
GERMANY	EN 10088-1:2005	X39Cr13，1.4031
	ISO 4957-2001[TJC STEEL]	X40Cr14，1.2083

 

Component Specification

GRADE	40Cr13	420	SUS420J2	1.2083	1.4031
C	0.36~0.45	≥0.15	0.26~0.40	0.36~0.42	0.36~0.42
Si	≤0.60	≤1.00	≤1.00	≤1.00	≤1.00
Mn	≤0.80	≤1.00	≤1.00	≤1.00	≤1.00
P	≤0.040	≤0.040	≤0.040	≤0.030	≤0.040
S	≤0.030	≤0.030	≤0.030	≤0.030	≤0.030
Cr	12.00~14.0	12.0~14.0	12.0~14.0	12.5~14.5	12.5~14.5
Ni	(≤0.60)	—[TJC STEEL]	(≤0.60)	—	—

 

Commercial Brand

ASSAB	STAVAX  ESR（S-136）
BÖHLER	M310
Daido	S-STAR
Hitachi	HPM38
Koshuha	KSP1
Aubert  & Duval	X13T6
Kind  & Co	RF

 

Material Performance：

S-136 is a martensitic stainless steel, after electroslag remelting, the content of sulfur and non-metallic inclusions in the steel is [TJC STEEL]very low, the material has a series of excellent properties:

(1) excellent corrosion resistance

(2) excellent polishing

(3) Excellent wear resistance

(4) Good machining stability

(5) the dimensional stability of heat treatment

 

Applications：

S-136 is the best choice for the production of small and medium-sized plastic molds.By proper heat treatment, the hardness can reach HRC50~52, and the performance is further improved.Due to its excellent polishing[TJC STEEL] and etching properties, it is especially suitable for the production of mirror molds and other optical products, such as parts on cameras and eyeglasses.