Product Details
Cold Rolled Steel Sheet Quality Standard SAE 1020 20# Thickness 2.5
mm 1250*2500mm
American standard SAE1020 carbon structure cold rolled steel plate
Mainly used in: automotive steel, construction steel, cold/hot
rolled steel, coil, coated, high-strength steel, color-coated coil
and other steel products.
SAE1020 carbon structural steel plate has low mechanical strength,
good plasticity and toughness, easy to deform in cold state, easy
to cut and process, good welding performance, and can be carburized
and cyanided to improve surface hardness. It is mainly used to
manufacture low-strength welded parts, cold stamping parts,
forgings and carburized parts such as bolts, washers, partitions,
shells, etc.
The following are its chemical properties (smelting analysis):
Carbon C: 0.16-0.22
Silicon Si: 0.15~0.35
Manganese Mn: 0.60-0.90
Sulfur S: ≤0.050
Phosphorus P: ≤0.040
Chromium Cr: ≤0.20
Nickel Ni: ≤0.25
Copper Cu: ≤0.25
Cold rolled steel plate is the abbreviation for ordinary carbon
structural steel cold rolled plate, also known as cold rolled
plate. Cold rolled steel plates are hot-rolled steel strips of
ordinary carbon structural steel, which are further cold rolled to
produce steel plates with a thickness of less than 4mm. Due to the
fact that rolling at room temperature does not produce oxide scale,
the cold plate has good surface quality and high dimensional
accuracy. In addition, annealing treatment results in better
mechanical and technological properties than hot-rolled thin steel
plates. In many fields, especially in the field of home appliance
manufacturing, it has gradually been used to replace hot-rolled
thin steel plates.
Usually available specification range |
Variety | thickness | width | length(or coil inner diameter) |
steel plate | trimming | 0.30~3.5 | 900~1830 | 1000~6000 |
No trimming | 900~1850 |
steel belt | trimming | 0.30~3.5 | 900~1830 | 610(the inside diameter of) |
No trimming | 900~1850 |
Slitting steel strip | 0.30~3.5 | 120~<900 |
Technical Standards for cold rolled steel coil |
grade | Zhengde enterprise standard | Comparable to foreign standards | illustrate |
Standard | Grade | Standard | Grade |
general use | Q/BQB403 Q/BQB402 | St12 SPCC | DIN1623JISG3141 | St12 SPCC | For general forming processing such as refrigerators and other home
appliance shells, oil barrels, and steel furniture. |
stamping grade | Q/BQB403 Q/BQB402 | St13 SPCD | DIN1623JISG3141 | St13 SPCD | Steel for stamping and forming processes such as automobiles, home
appliances, and construction. |
Deep drawing | Q/BQB403 Q/BQB402 | St14, (F, HF, ZF)SPCE (F, HF, ZF) | DIN1623JISG3141 | St13 SPCE | Automobile headlights, fuel tanks, car doors, windows and other
steels for deep drawing and forming. |
Steel for extra deep drawing | Q/BQB403 | St15 St14T | | | Car headlights, complex underbody panels, oil pans. |
hard steel | Q/BQB402 | SPCC4D SPCC8D SPCC1D | JISG3141 | 1/4 hard1/8hard | Steel for bicycle rims and steel for stationery. |
structural steel | Q/BQB410 BZJ410 | St37-2G St44-3G St52-3G | DIN1623 | St37-2G St44-3G St52-3G | Buildings, car bodies, brackets. |
Atmospheric resistant steel | BZJ441 | B440NQ B450NQ B460NQ B500NQ | | | Automobile, train car outer panels, container panels, doors and
windows, cold-formed steel and other components. |
steel for car wheels | BZJ412 | B320LW B360LW | | | Steel for automotive wheel rims. |
Our Advantages
High precision
Cold-rolled high-quality thin steel plate: mainly includes various
high-quality steel cold-rolled thin plates, the most commonly used
is carbon structural steel plate, especially cold-rolled thin steel
plate for deep drawing, which is cold-rolled thin plate made of
low-carbon high-quality steel 08Al. The quality is divided into
three groups;1 ,2 and 3, which represent particularly high-grade,
high-grade, and higher-finish surfaces, respectively.
Extensive use
Cold-rolled steel plate with smooth surface and excellent
processing, used for home appliances such as automobiles,
refrigerators, washing machines, industrial equipment, and various
building materials. With the development of the economy,
cold-rolled steel sheets have been called necessary materials in
modern society. Classification of cold-rolled products: hot-rolled
pickling, hard-rolled coil, ordinary cold-rolled, galvanized
(electro-galvanized, anti-fingerprint, hot-dip galvanized),
galvanized, electro-tinned, color-coated, electrical steel (silicon
steel sheet) wait.
Strict craftsmanship
Cold rolled steel coils generally use hot-rolled strip steel with a
thickness of 1.5-6 mm as the cold rolled billet. The main processes
include pickling, cold rolling, degreasing, annealing, leveling,
and shearing (cross cutting, longitudinal cutting). If producing
coated plates, there are also plating or coating processes such as
electroplating tin, hot tin coating, and hot zinc coating. The
production process of cold rolled billets is as follows: hot rolled
sheet coils (raw materials) - acid washing - cold rolling -
degreasing - annealing - leveling - shearing - finished product
delivery.
Provide deep processing
The company's slitting machine, slitting line, cuts cold rolled
steel coils into strips of various widths as needed, and then folds
the strips into small coils for use in the next process. It is a
necessary equipment for precision cutting of transformers, motor
industries, and other metal strips. It is mainly used for strip
cutting of materials such as tinplate, galvanized iron, silicon
steel sheet, cold rolled strip, stainless steel strip, aluminum
strip, steel strip, and other coils.
Company Profile
Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a
beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL)
,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy
excellent geographic location and convenient water, land and air
transportation. , Wuxi become the biggest stainless steel sheet
,plate and coil supply Centers in China. Jiangsu Mittel Steel
Industrial Limited was established in 1998 years. as one of the
largest stockists and manufacturers of industrial grade Stainless
Steel products and derivatives in Wuxi ,We keep a stock of 50000
tons every month, so we can delivery goods in fast time.
Our company supplies cold/hot-rolled stainless steel
sheets,stainless steel coils and stainless steel Plate to many
steel factories from athome and abroad, including Shanxi Taigang
Iron& Steel CO, . Ltd (TISCO)Zhangjiagang Pohang (ZPSS), Shanghai
BAO STEEL, Ningbo Baoxin and steel factories in Taiwan area,
Mainland Chinese and foreign countries and regions.
Our long-term business lines are
201.202.304(1.4301).304L.316.316L(1.4404).430.409L, 309S
,310S(1.4845).317L.904L.S31803(1.4462).S32750.S32760, Finish: 2B,
BA, NO. 1 NO. 4, HL, 8K and so on...Meanwhile, our company is also
engaged in the long-term supply of homemade & imported medium and
thick plates, galvanized and carbon steel products.
Adhering to the principle of "quality first and customer
foremost",our company will offer long-term service to nationwide
manufacturers of household appliances, elevators, tableware,
ornaments, tanks and machines. We can offer precise frosted
wiredrawing, 8K mirror finishing and skim board oil-abrasion of
various specifications at any time. The precisely-processed
products will meet your requirements for high quality. Our company
is a modern enterprise integrating distribution and storage.
If you are interested in any of our products or would like to
discuss a custom order, please feel free to contact us. We are
looking forward to forming successful business relationships with
new clients around the world in the near future.

