420J1 420J2 stainless steel strip

420J1 and 420J2 stainless steel strips are two common types of stainless steel materials that belong to the martensitic stainless steel series. They have some differences in chemical composition and characteristics. Here is a brief overview of each: 1. 420J1 stainless steel strip: 420J1 is a low-carbon stainless steel with high hardness and strength. Its chemical composition typically includes around 0.16-0.25% carbon, about 1% chromium, and small amounts of molybdenum. 420J1 offers good corrosion resistance, cutting performance, and grinding properties. It is commonly used for making knives, surgical instruments, mechanical parts, and some wear-resistant applications. 2. 420J2 stainless steel strip: 420J2 is a medium-carbon stainless steel with high hardness and wear resistance. Its chemical composition usually contains around 0.26-0.35% carbon and about 1% chromium. 420J2 has a higher carbon content compared to 420J1, resulting in increased hardness and cutting performance. It is frequently utilized for manufacturing knives, blades, surgical instruments, springs, and some mechanical parts.     

Specifications of 420J1 420J2  stainless steel strips:

Specifications	ASTM A240 / ASME SA240
Grade	321,321H,420J1, 420J2 430, 439, 441, 444
Width	8 – 600mm
Thickness	0.09-6.0mm
Technology	Hot rolled, Cold rolled
Surface	2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror
Form	Coils, Foils, Rolls, Strip, Flats, etc.
Tolerance	+/-0.005-+/-0.3mm

 

Stainless Steel 420J1 420J2  Strips Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	EN	BS	AFNOR	SIS	JIS	AISI
SS 420J1	1.4021	S42010	X20Cr13	420S29	Z20C13	2303	SUS420J1	420L
SS 420J2	1.4028	S42000	X20Cr13	420S37	Z20C13	2304	SUS420J2	420M

 

Chemical Properties of SS 420J1 / 420J2 Strips:

Grade	C	Si	Mn	P	S	Cr
420J1	0.16-0.25max	1.0max	1.0max	0.04max	0.03max	12.00-14.00
420J2	0.26-0.40max	1.0max	1.0max	0.04max	0.03max	12.00-14.00

 

Mechanical Properties of SS 420J1 / 420J2 strips:

Rm – Tensile strength (MPa) (+QT)	650-950
Rp0.2 0.2% proof strength (MPa) (+QT)	450-600
KV – Impact energy (J) longitud., (+QT)	+20°20-25
A – Min. elongation at fracture (%) (+QT)	10-12
Vickers hardness ( HV): (+A)	190 – 240
Vickers hardness ( HV): (+QT)	480 – 520
Brinell hardness (HB): (+A))	230

 

Tolerance of  420J1/420J2 Strips:

Thickness mm	Normal accuracy mm	Higher accuracy mm
≥0.01-<0.03	±0.002	-
≥0.03-<0.05	±0.003	-
≥0.05-<0.10	±0.006	±0.004
≥0.10-<0.25	±0.010	±0.006
≥0.25-<0.40	±0.014	±0.008
≥0.40-<0.60	±0.020	±0.010
≥0.60-<0.80	±0.025	±0.015
≥0.80-<1.0	±0.030	±0.020
≥1.0-<1.25	±0.040	±0.025
≥1.25-<1.50	±0.050	±0.030

 

Why Choose Us :

  1. You can get the perfect material according to your requirement at the least possible price. 2. We also offer Reworks, FOB, CFR, CIF, and door to door delivery prices. We suggest you to do deal for shipping which will be quite economical. 3. The materials we provide are completely verifiable, right from raw material test certificate to the final dimensional statement.(Reports will show on requirement) 4. e guarantee to give a response within 24hours(usually in the same hour) 5. You can get stock alternatives, mill deliveries with minimizing manufacturing time. 6. We are fully dedicated to our customers. If it will not possible to meet your requirements after examining all options, we will not mislead you by making false promises which will create good customer relations.  

SAKY STEEL’S Quality Assurance (including both Destructive and Non-Destructive)

  1. Visual Dimension Test 2. Mechanical examining like tensile, Elongation and reduction of area. 3. Impact analysis 4. Chemical examination analysis 5. Hardness test 6. Pitting protection test 7. Penetrant Test 8. Intergranular Corrosion Testing 9. Roughness Testing 10. Metallography Experimental Test  

Packing

  1. Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging. 2. Saky steel’s pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,