Stainless Steel Circle and Coils
Songjinwan company specializes in drawing stainless steel for cookware factories(201 304 410 430 stainless steel circles and coils).The stainless steel is applied in each part of kitchen, and it is the main material of kitchenware since it could be used for the pot body, pot bottom, pot lid, pan handle, pot lid knob. Stainless steel circles is also the main material for making triply clad circles and aluminium induction circles.There are different requirement on the material in various cookware parts. The pot body usually made of stainless steel circles. It is drawing by hydraulic press. The drawing part raises the highest requirement for the materials.
The professional drawing stainless steel would not only make the shape of pot body needed smoothly, and there is no drawing line on the surface because it is better for the polishing after the drawing. At the same time, the brightness of the material itself also determines whether the materials is apt to be polished or not. Generally speaking, the 2B surface, fog surface or stainless steel surface with low brightness are more difficult to polish; while the surface with certain brightness would be polished easily. For stretching, mirror stainless steel coil does not mean to be good for drawing.
Stainless steel circles with the same performance will also show different drawing effects under different molds, different lubrication effects and different pressures.
We could not regulate the outer condition of customers in drawing, but we could ensure that our material could meet the drawing requirement within certain range. Normally, we would judge the drawing performance of materials according to their tensile test result, i.e. hardness, tensile strength and elongation.
The performance of material would be varied. Seen from performance, in the stainless 201, 410, 430 and 304, the 304 has the best drawing performance, and the elongation rate could reach 65%, so as to draw the pot with large deformation; and the 201, 430 and 410 is the second series whose elongation rate could reach 28% – 30%.Such elongation rate could meet the stretching of most of products
As an stainless steel wholesaler,we can select more suiable for drawing ss coil from factories.
| Specification | Chemical composition %(Heat Analysis) | Tensile Test | Hardness | ||||||||
| C | Si | Mn | P | S | Cr | Ni | Yield Strength | Tensile Strength | Percentage Elongation | ||
| 201J1 | ≤0.15 | ≤0.8 | ≥8.5 | ≤0.06 | ≤0.03 | ≥13.5 | ≥0.8 | ≥205 | ≥520 | ≥35 | ≤260 |
| 304DQ | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 18-20 | 8-10 | 670-720 | 260-300 | 60-70 | 160-180 |
| 410 | ≤0.15 | ≤1.00 | ≤1.00 | ≤0.035 | ≤0.03 | 11.5-13 | 260-300 | 440-500 | 25-30 | 130-140 | |
| 430 | ≤0.12 | ≤0.75 | ≤1.00 | ≤0.04 | ≤0.03 | 16-18 | ≤0.60 | 260-300 | 440-500 | 25-30 | 140-150 |
| People keep chasing after healthier foods. As a manufacturer of kitchenware, You surely know all kinds of healthy materials to adapt to the requirement of people. Among most of the materials, the 304 stainless steel coil and 430 stainless steel coil are widely used in kitchenware for being healthy, apt to be cleaned, high-cost performance. Normally, the 304 stainless steel is thought to be the healthier materials directly accessed to foods. Certainly, there is better materials, such as the kitchenware made with stainless steel 316 and titanium, but few of people could accept it for the high price. The 201 stainless steel coil and 410 stainless steel coil would be used to make pot body that is directly accessed to foods, but they have a higher contents of manganese content. It would be fine if it is cooked with ordinary foods, but the manganese precipitation if it is cooked or made with sour foods, which does harm to human’s health to some extent. Hence, it is used in the low-end kitchenware products. |  Healthy stainless steel materials |
 2021 stainless steel coil historical price(RMB) |
Normally, pots are made of stainless steel 201,304, 316, 410 and 430. The pots with stainless steel 316 is the most expensive, and it is followed by that of 304.
The pots made by these two materials should be the high-end products. The price of them made of 201 and 430 stainless steel coil price is half of that of 304， and the stainless steel 201, 410and 430 have interchangeability in applications, so many factories would purchase the cheaper materials according to the marketing price of 201 and 430 when they have different prices, so that their price gap could be narrowed.
However, the 201 has no magnetic while the 430 has it, and they also have different manganese content, so they could not be exchanged in the pot products.
As the cheapest material, stainless steel 410 would be made of some low-end products or cookware parts that do not come into direct contact with food.
