
Quick Detail
Description: cold rolled stainless steel coils
Thickness: 0.3mm~3.0mm
Grade: 420J1 420J2
Standard: JIS ASTM
Finish:2B/2D
Width:20-1250mm
Payment terms:by T/T or By L/C
Delivery: 4~6 weeks after confirmation of P.O.
About grade 420
Grade 420 is Martensitic stainless steel, to obtain the strength and hardenabilit of the martensitic grades, they have higher carbon content compared to other grades, and nigrogen is sometimes added to further improve the strength.The matensitic grade is magnetic and hardenable.
400 series stainless steel which is an alloy of iron, carbon and chromium. The stainless steel has a martensitic structure and iron element, so it has the magnetic properties.400 series stainless steel normally has high resistance to oxidation at high temperature, and compared with carbon steel, physical and mechanical properties are improved. The majority of the 400 series stainless steel can be heat treated.
Martensitic microstructure
CHEMICAL COMPOSITION
STANDARD | GRADE | CHEMICAL COMPOSITION(%) | |||||
C max | Si max | Mn max | P max | S max | Cr | ||
JIS G4305 | SUS420J1 | 0.16-0.25 | 1.00 | 1.00 | 0.040 | 0.030 | 12.00~14.00 |
JIS G4305 | SUS420J2 | 0.26~0.40 | 1.00 | 1.00 | 0.040 | 0.030 | 12.00~14.00 |
Mechanical Characteristics
Material | Yield Strength | Tensile Strength | Elongation | Hardness | |
(N/mm2) | (N/mm2) | (%) | HRB | HV | |
420J1 | 225 | 520 | 18 | 97 | 234 |
420J2 | 225 | 540 | 18 | 99 | 247 |
Major Application:
Due to excellent hardness features, 420 is widely used in knife edge, nozzle, valve, plate ruler, and tableware (scissors, knife) etc.
Ningbo Juye Metal Technology co.,ltd
About Us
JUYE metal was established in 2017 and is located in Ningbo City,which is one of the China’s largest international port cities, with convenient transportation facilities and mature commercial service network for steel products.
We are a fast-growing company, nearly all the staffs have over 10 years of professional experience in stainless steel industry. We specialize in the manufacturing, processing, distributing, warehousing and logistics of stainless steel products. We cover all aspects of the services, from the source of the stainless steel industry chain to the final products recycling and reuse.
We are the main partner of big mills in China and abroad, such as Tsingshan, Baosteel, Tisco, Jisco, Yongjin, Hongwang, Yusco, etc...With our years of rich experience and knowledge accumulation in the field of stainless steel, as well as professional processing capabilities and a strong distribution platform, our products are exported to all over the world, and we have cultivated a good user base, which in turn has grown our team.
Our own warehouse in Ningbo bonded area stores 5,000~8,000 tons of coils per month, mainly serving overseas customers for processing. We carry out a series of further processing such as cutting, slitting, trimming, polishing, and punching in our own factory.
We are implementing a strict quality control system to ensure that all products meet quality requirements of customers. We have attained many certificates such as ISO 9001,CE,PED,SGS ,etc.. All the products will be strictly inspected before shipment.
Thanks to the support and trust of our partners, our sales volume continues to increase and our business territory continues to expand.