Product Description
Cold Rolled Annealed Coil
It is a heat treatment process to recrystallize cold-rolled strips, eliminate cold-rolled work hardening, and restore plasticity to obtain expected physical and physical-chemical properties. The process flow is generally divided into preliminary annealing, intermediate annealing and finished annealing. The annealing process varies with the purpose, and recrystallization annealing, incomplete annealing and complete annealing are often used. In order to obtain a strip with no oxidation and no decarburization on the surface, the strip is bright annealed in a protective atmosphere.
Bell annealing is divided into single-stack annealing and multi-stack annealing. According to different coil forms, there are two types: tight coil annealing and loose coil annealing (see bell annealing). Most bell furnace annealing, although the processing period is long, but due to the large number of furnaces, flexible use, and low investment, it is often used in the annealing of cold-rolled plate and strip steel. In the late 1970s, a strong convection full hydrogen bell furnace annealing (HICON/H2) appeared. Pure hydrogen is used as the protective gas, and the large-blade centrifugal vortex machine produces strong convection, which increases the coil heating and cooling speed by 40% to 50%; the annealing cycle is shortened, and the energy consumption is low; a high-quality surface close to that achieved by continuous annealing can be obtained.
Continuous annealing discrete continuous annealing and horizontal continuous annealing. The furnace is generally filled with protective gas. Continuous annealing is a new technology for annealing cold-rolled strip steel introduced in the 1970s, with large annealing output. Continuous furnace annealing has been developed for many years, and the annealing equipment has been continuously improved, and gradually tends to be specialized according to the variety of production, so as to reduce the basic construction cost of the unit and improve the quality of the product. Continuous furnace annealing can not only produce special deep-drawing grade strip steel with good surface grade, but also produce high-strength strip steel. performance.
| Product Name |
Cold rolled steel coil |
Packing |
Standard export packing |
|
Usage
|
building, roofing sheet, safety fence |
Grade |
SPCC/DC01/ST12/SPCD/SPCE |
|
Standard
|
AISI/ASTM/JIS |
Delivery Time |
15-21 days |
| Place of Origin |
Shandong,China |
Technique |
cold rolled |
| Width |
600-1250mm |
MOQ |
5 tons |
| Thickness |
0.15-2mm |
Price Term |
T/T, D/P, L/C, Cash |
Cold rolled coil is hot rolled coil as raw material, at room temperature, the highest grade EDDQ, the highest strength of 590MPa, has the advantages of high dimensional
accuracy, good surface quality, convenient processing, material saving and so on. It is widely used in home appliance industry, automobile industry, machinery industry,
construction industry, galvanized and other industries.
| Chemical Properties of Frequently-used Stainless Steel Material Grade |
| UNS |
ASTM |
EN |
JIS |
C% |
Mn% |
P% |
S% |
Si% |
Cr% |
Ni% |
Mo% |
| S20100 |
201 |
1.4372 |
SUS201 |
≤0.15 |
5.5-7.5 |
≤0.06 |
≤0.03 |
≤1.00 |
16.0-18.0 |
3.5-5.5 |
- |
| S20200 |
202 |
1.4373 |
SUS202 |
≤0.15 |
7.5-10.0 |
≤0.06 |
≤0.03 |
≤1.00 |
17.0-19.0 |
4.0-6.0 |
- |
| S30100 |
301 |
1.4319 |
SUS301 |
≤0.15 |
≤2.00 |
≤0.045 |
≤0.03 |
≤1.00 |
16.0-18.0 |
6.0-8.0 |
- |
| S30400 |
304 |
1.4301 |
SUS304 |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.03 |
≤0.75 |
18.0-20.0 |
8.0-10.5 |
- |
| S30403 |
304L |
1.4306 |
SUS304L |
≤0.03 |
≤2.00 |
≤0.045 |
≤0.03 |
≤0.75 |
18.0-20.0 |
8.0-12.0 |
- |
| S30908 |
309S |
1.4833 |
SUS309S |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.03 |
≤0.75 |
22.0-24.0 |
12.0-15.0 |
- |
| S31008 |
310S |
1.4845 |
SUS310S |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.03 |
≤1.50 |
24.0-26.0 |
19.0-22.0 |
- |
| S31600 |
316 |
1.4401 |
SUS316 |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.03 |
≤0.75 |
16.0-18.0 |
10.0-14.0 |
2.0-3.0 |
| S31603 |
316L |
1.4404 |
SUS316L |
≤0.03 |
≤2.00 |
≤0.045 |
≤0.03 |
≤0.75 |
16.0-18.0 |
10.0-14.0 |
2.0-3.0 |
| S31703 |
317L |
1.4438 |
SUS317L |
≤0.03 |
≤2.00 |
≤0.045 |
≤0.03 |
≤0.75 |
18.0-20.0 |
11.0-15.0 |
3.0-4.0 |
| S32100 |
321 |
1.4541 |
SUS321 |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.03 |
≤0.75 |
17.0-19.0 |
9.0-12.0 |
- |
| S34700 |
347 |
1.455 |
SUS347 |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.03 |
≤0.75 |
17.0-19.0 |
9.0-13.0 |
- |
| S40500 |
405 |
1.4002 |
SUS405 |
≤0.08 |
≤1.00 |
≤0.04 |
≤0.03 |
≤1.00 |
11.5-14.5 |
≤0.60 |
- |
| S40900 |
409 |
1.4512 |
SUS409 |
≤0.08 |
≤1.00 |
≤0.045 |
≤0.03 |
≤1.00 |
10.5-11.75 |
≤0.50 |
- |
| S43000 |
430 |
1.4016 |
SUS430 |
≤0.12 |
≤1.00 |
≤0.040 |
≤0.03 |
≤0.75 |
16.0-18.0 |
≤0.60 |
- |
| S43400 |
434 |
1.4113 |
SUS434 |
≤0.12 |
≤1.00 |
≤0.040 |
≤0.03 |
≤1.00 |
16.0-18.0 |
- |
- |
| S44400 |
444 |
1.4521 |
SUS444L |
≤0.025 |
≤1.00 |
≤0.045 |
≤0.03 |
≤1.00 |
17.5-19.5 |
≤1.00 |
- |
| S40300 |
403 |
- |
SUS403 |
≤0.15 |
5.5-7.5 |
≤0.04 |
≤0.03 |
≤0.50 |
11.5-13.0 |
≤0.60 |
- |
| S410000 |
410 |
1.40006 |
SUS410 |
≤0.15 |
≤1.00 |
≤0.035 |
≤0.03 |
≤1.00 |
11.5-13.5 |
≤0.60 |
≤1.00 |
| S42000 |
420 |
1.4021 |
SUS420J1 |
0.16~0.25 |
≤1.00 |
≤0.04 |
≤0.03 |
≤1.00 |
12.0-14.0 |
≤0.75 |
≤1.00 |
| S440A |
440A |
1.4028 |
SUS440A |
0.60~0.75 |
≤1.00 |
≤0.04 |
≤0.03 |
≤1.00 |
16.0-18.0 |
- |
≤0.75 |
| S32750 |
SAD2507 |
1.441 |
|
≤0.03 |
≤1.2 |
≤0.035 |
≤0.02 |
≤0.80 |
24.0-26.0 |
6.0-8.0 |
3.0-5.0 |
| S31803 |
SAF2205 |
1.4462 |
|
≤0.03 |
≤2.0 |
≤0.03 |
≤0.02 |
≤1.00 |
21.0-23.0 |
4.0-6.5 |
2.5-3.5 |
| N08904 |
904L |
1.4539 |
|
≤0.0.3 |
≤2.0 |
≤0.035 |
≤0.03 |
≤1.00 |
18.0-20.0 |
23.0-25.0 |
3.0-4.0 |
Customer reviews
One-stop service
Jinan Zunkai Materials Co., Ltd belongs to the Jinan Jinhongtong Steel Group.
Jinan Zunkai Materials was founded in 2016, our group include seven branch trade companies and one steel manufacturer factory.
Our annual sales amount has over one billion.
Advanced processing line
Our company mainly engaged in: PPGI, roofing sheet, galvalume steel coil, hot rolled steel plate, stainless steel, angle bar, round steel, aluminum sheet / coil /plate and all profiles.
We always focus on honest, trust and sincerity, wish good cooperation with all our clients.
Sales service
The company relies on strong financial strength, advanced management experience, excellent sales services, strict quality management system and scientific overall marketing to go hand in hand with you for common development.
Hope to establish long-term cooperative relations with you.
Application
Company Profile
Jinan Zunkai Group founded in 2002, with five branch companies and is well-funded. Our annual sales nearly one billion, about 300,000 tons steel.
Our company is located in Jinan City, Shandong Province. We entered into a strategic partnership with Bao Steel, Laiwu Steel, Rizhao Steel, Handan Steel, Anyang Steel, Maanshan Steel and other domestic large steel companies.
Zunkai is the largest steel agent in Shandong Province, we also have ourselves steel process factory with 100000 Square meter for steel laser cutting, surface treatment and other further processing , and our stock always more than 20,000 tons.
Zunkai Group mainly engaged in : PPGI ,galvanized steel , steel plate , round bar, steel pipe ,Stainless steel product ,angle bar, steel pile ,H beam ,I beam, angle, Channel flat steel etc .
Our good quality and reliable service will be your best trusted partner.
Sincerely wish to building long and regular business with you forever!!!
Customer Question & Answer
Q1 : What is your payment terms?
A1 : 30% deposit & balance against B/L or L/C at sight.
Q2 : What is your delivery time & loading port?
A2 : Generally it is within 7 days after received advance payment or L/C. If the goods is not in stock , according to the quantity
it is within 15 days. Loading port:QINGDAO or TIANJIN.
Q3 : Do you have MOQ request ? Can offer free samples?
A3 : Our MOQ is usually ONE ton. Free samples is ok but need pay thecourier charge. Charge can be deduct in future orders.
Q4 : What are your company's main products?
A4 : Our main products are Aluminum products, Steel products, Stainless steel products, Galvanized steel products, Colorized steel Coil, etc.
Q5 : Are you a factory or trading company?
A5 : We have both factory and trading company,own branch factory and warehouse in Shandong Province to provide you nice
goods with best price and good quality.
Audited Supplier 
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