Knife steels, buy Martensitic stainless steel sheets AISI 420 on China Suppliers Mobile

Product Details

Martensitic stainless steel sheets AISI 420

Equivalent steel grades

ITA	USA	GER	FRA	UK	RUS	CHN	JAP
X20Cr13	420A	1.4021	Z 20 C13	420 S37	20 Kh 13	20Cr13 *	420J1

ITA	USA	GER	FRA	UK	RUS	CHN	JAP
X30Cr13	420B	1.4028	Z 33 C 13	420 S 45	30 Kh 13	30Cr13 *	420J2

ITA	USA	GER	FRA	UK	RUS	CHN	JAP
X46Cr13	420C	1.4034				40Cr13	420

CHN	GER	USA
-	1.4037 / X65Cr13	420D

Chemisty Data ( in weight % )

Grade	C	Si	Mn	P	S	Cr
420A	0.16 - 0.25	1.00 max	1.50 max	0.035 max	0.030 max	12.00 - 14.00

Grade	C	Si	Mn	P	S	Cr
420B	0.26 - 0.35	1.00 max	1.50 max	0.035 max	0.030 max	12.00 - 14.00

Grade	C	Si	Mn	P	S	Cr
420C	0.43 - 0.50	1.00 max	1.00 max	0.035 max	0.030 max	12.50 - 14.50

Grade	C	Si	Mn	Cr
420D	0.58 - 0.70	1.00 max	1.00 max	12.50 - 14.50

420J1 Stainless Steel: Is a low carbon stainless steel which is used in lot of inexpensive imports,

Some knife makers use it in the liners of their folding knives but not for blades.

420J1 is often called quality surgical steel or Japanese steel.

(The J has nothing to do with Japanese made steel).

420J1 has a high chromium content that gives it great corrosion resistance but it has lousy edge retention

and is very soft meaning it will knick and dull quickly.

It is often used in Novelty and Art / Decorative knives.

420J2 Stainless Steel: 420J1 Stainless with a little more carbon.

It is sometimes used in dive knives because for its corrosion resistance.

It is used in surgical instruments due to ease of machining and corrosion resistance.

With proper heat treating can achieve a Rockwell test of 56. And make it comparable to 420HC.

It is often used in scissors. It is not a true "tool steel" however because it is used on

making certain surgical tools some people will call it "420J2 tool steel" in a less than scrupulous sales pitch.

420C 420 modified with more carbon, to be roughly comparable to 440A. Ref - 420C Steel Composition.

420C: A 420 stainless modified with more carbon, and normally a better heat treatment.

It is said to be roughly comparable to 440A. There is debate about this claim.

Buck uses this in its Chinese imports. It is probably used by others.

420D is a martensitic stainless chromium steel with a chemistry optimized for high quality professional knife applications.
The chemical composition provides a unique combination of properties including
* Excellent edge performance
* Very high hardness
* Good corrosion resistance
Due to its higher carbon content, it is more hardenable than DIN X46Cr13.
It is used in the quenched and tempered condition and due to its high hardness, it is ideally suited for the production of

cutting tools of all sorts and surgical implements.

Contact:LIU

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