Cold Rolled Mirror 2B 0.6mm Grade SUS 304 420 Stainless Steel Coil
Introduction to 420 stainless steel: Standard: AISI, ASTM Features
and applications: 420 stainless steel, 420 stainless steel is 420
"cutting grade" martensitic steel, similar to Brinell high chromium
steel, the earliest stainless steel. 420 has certain wear
resistance and corrosion resistance, high hardness, the price is
higher in stainless steel ball The lower one is suitable for the
working environment of stainless steel. The .420 stainless steel is
suitable for all kinds of precision machinery, bearings,
electrical, equipment, instruments, meters, transportation tools,
household appliances, etc. It is mostly used to manufacture parts
resistant to atmospheric, water vapor, water and oxidizing acids.
chemical composition Carbon C: 0.16~0.25
Manganese Mn: ≤1.00
Silicon Si: ≤1.00
Chromium Cr: 12.0~14.0
Nickel Ni2: ≤0.75
Phosphorus P: ≤0.04
Sulfur S: ≤0.03
Tensile strength σb (MPa): quenching and tempering, ≥ 635
Conditional yield strength σ0.2 (MPa): quenching and tempering,
Elongation δ5 (%): quenching and tempering, ≥20
Section shrinkage ψ (%): quenching and tempering, ≥50
Impact work Akv (J): quenching and tempering, ≥63
Hardness: Annealed, ≤223HB; quenched and tempered, ≥192HB
Cold Rolled Stainless Steel coil :
a. Stretch good, toughness, but the price is more expensive;
b. Cold rolling processing surface without oxide skin, good
c. Cold rolling is generally used in the production of strip, the
rolling speed is high;
d. Cold rolling than the thickness of the high precision.
Mechanical properties, surface and so on in the hot rolling;
e. Cold rolled steel coil due to a certain degree of work
hardening, low toughness, but can achieve better yield ratio, used
for cold-formed spring and other parts;
f. Cold coil yield point closer to the tensile strength, so the use
of risk in the process of no predictability, when the load exceeds
the allowable load prone to accidents
g. The surface of the cold rolled steel coil without plating is
h. Cold rolled steel plate surface smoothness is higher than the
hot rolled steel coil.
stainless steel coil surface appearance and the possibility of
Good corrosion resistance, longer durability than ordinary steel
High strength, so the possibility of using the thin plate is big
High temperature oxidation and strength, so it can resist fire
Normal temperature processing, that is, easy to plastic processing
Because it is not necessary to surface treatment, so simple, easy
to maintain, clean, high finish, good welding performance
Data of Other Grades Chemical Composition :
|Typical chemical composition|
Cold Rolled waterproof paper and steel strip reinforcement,one
package about 2 tons,Load in 20GP / 40GP
Q1. How do you control quality ?
A1: Mill Test Certification is supplied with shipment, Third Party
Inspection is available.
Q2. What are the advantages of your company ?
A2: We have many professionals, technical personnel, more
competitive prices and best after-dales service than other
stainless steel companies.
Q3. How many coutries you already exported ?
A3: Exported to more than 50 countries mainly from America , Russia
, UK , Kuwait, Egypt ,Brazil , UAE , Germany , Dubai , Saudi Arabia , Iran , Turkey , Jordan , Malaysia , Singapore , etc.
Q4. Can you provide sample ?
A4: Small samples in store and can provide the samples for free.
Customized samples will take about 5-7days
If anything is interested, please freely contact us, looking
forward to your inquiry
Lily E-mail : firstname.lastname@example.org