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What are the precautions for passivation treatment of stainless steel strip
1、 Key points of pre-treatment before passivation 1. The surface must be degreased and cleaned Rolling lubricating oil, stretching oil, rust proof oil, fingerprints, and dust will isolate the passivation solution, causing uneven thickness of the passivation film, partial failure to apply the film, and non-compliance with salt spray standards. Light and thin steel strip with priority alkal
2026-06-15 -
What are the common surface grades of stainless steel coils
1、 Mainstream surface of cold-rolled stainless steel coil (most commonly used in the market) 1.2B surface (large amount, basic universal surface) Cold rolling → annealing and pickling → mild flattening of the finishing roll, presenting a matte silver gray color with a delicate and non reflective feel.
2026-06-09 -
What are the hardness grades of stainless steel strips
1、 Austenitic stainless steel strip (mainstream grades 301, 304, 316L) Referring to HV Vickers hardness and HRB Rockwell B, industry standard states: soft, 1/4H, 1/2H, 3/4H, H, EH, SH
2026-06-01 -
Where is the high utilization rate of stainless steel coils reflected
The high utilization rate of stainless steel coils is mainly reflected in flexible cutting, low loss, adaptability to continuous processing, and strong specification adaptability. Combined with actual production scenarios, it is explained that:
2026-05-26 -
What are the requirements for the storage environment of stainless steel strips
The core of stainless steel strip preservation is constant temperature, low humidity, cleanliness, isolation, and protection from light and rain to prevent damage and corrosion of the passivation film.
2026-05-18 -
What are the effects of the surface type of stainless steel strip on its performance
1、 Common surface types 2B, BA mirror, brushed, frosted, 8K mirror, polished surface, hot-rolled surface 2、 Impact on core performance 1. Corrosion resistance Mirror/polished/BA surface: The surface is smooth and dense, without scratches or gaps, has good corrosion resistance, and is not easy to accumulate dirt or rust. 2B matte surface: medium corrosion resistance, industri
2026-05-11 -
What are the key points for selecting stainless steel coils
The core of selecting stainless steel coils is to first determine the material according to the corrosive environment, then determine the specifications and surface according to the processing/stress, balance the cost and service life, and verify the quality assurance and dimensional accuracy of the steel mill.
2026-05-07 -
What is the dimensional accuracy of stainless steel strip
1、 Overall Overview Stainless steel strip is produced using precision cold rolling, continuous rolling, high-precision roller system, and closed-loop thickness control system, combined with annealing leveling and precision slitting processes. The overall thickness tolerance is small, the width is correct, the flatness is high, the edges are regular, and the uniformity of the same roll is st
2026-04-27 -
Why is stainless steel strip used in precision hardware
In precision hardware manufacturing, stainless steel strip is the core basic raw material. Compared with ordinary carbon steel, galvanized strip, copper strip and other materials, it is more suitable for the hard requirements of precision parts such as dimensional accuracy, forming requirements, service life, and environmental tolerance. It is a material for mass production of precision hardware,
2026-04-20 -
How to ensure the quality of stainless steel coils
The quality of stainless steel coils strictly follows relevant mandatory standards and industry norms, and is systematically controlled throughout the entire process to ensure that core indicators such as product composition, performance, size, surface, and corrosion resistance meet the requirements of manufacturing, precision machining, pressure vessels, sanitary storage tanks, and other demandin
2026-04-14
- 11-032026
What are the effects of magnetism on the performance of stainless steel strip after cold processing
1. Mechanical properties Beneficial: Martensite is a hard phase, which, when combined with cold work hardening, increases tensile strength, hardness, yield strength, and elasticity. This is also the principle of 301 steel strip using large deformation to make spring plates and clamps.
- 10-262026
What are the temperature and humidity requirements for storing stainless steel coils, and how to pre
The overall goal of stainless steel coil storage control is to stabilize the storage environment, isolate corrosive media, and avoid condensation on the surface of the plate. By relying on environmental control, isolation protection, standardized stacking, and regular inspections, the risk of floating rust caused by chloride ions and water vapor adhesion is reduced, ensuring the surface quality of
- 10-192026
What is the effect of annealing treatment on the hardness, elongation, and internal stress of stainl
Annealing of stainless steel coils is a heat treatment process that generally changes the internal metallographic structure of the material through controlled heating, insulation, and slow cooling, in order to adjust mechanical properties and release residual internal stresses generated during the rolling process. There are corresponding differences in the effects of different annealing process se
- 10-132026
How to avoid corrosion and green spots caused by condensation salt spray during storage and shipping
The green spots generated during the storage and shipping of stainless steel coils are essentially chloride ions brought in by salt spray during shipping, forming a condensed water film between the layers and end faces of the steel coils, damaging the passive film of stainless steel, causing crevice corrosion and pitting corrosion, and generating chlorine containing corrosion products; Once water
- 10-082026
What is the usual method for controlling the shape of stainless steel strip
Stainless steel materials have high deformation resistance and obvious work hardening. Thin gauge strips are prone to defects such as medium waves, edge waves, quarter waves, and single-sided waves. Generally, roller system mechanical adjustment, segmented cooling, tension control, roller profile pre configuration, online plate shape closed-loop detection, and subsequent leveling and straightening
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