Ultra Thin Stainless Steel Strip

1. Product Overview

Qihong ultra thin stainless steel strip is a customized precision cold-rolled stainless steel material developed and produced independently by Ningbo Qihong Stainless Steel Co., Ltd. Different from ordinary stainless steel strips, this product focuses on ultra-thin thickness control, micron-level dimensional accuracy and uniform material performance, breaking the performance limitations of conventional steel strips in ultra-precision scenarios.

The product thickness covers 0.01mm-0.1mm, with a minimum thickness tolerance of ±0.002mm. It supports slitting, surface brushing, precision polishing and other customized processing. The covered steel grades include mainstream high-performance models such as 201, 301, 304, 316L, 310S, 430 and 904L. It integrates the advantages of high toughness, low deformation rate, excellent oxidation resistance and salt spray corrosion resistance, and can maintain stable structural performance in extreme environments such as high temperature, high humidity and strong corrosion.

Relying on sophisticated production equipment, scientific management system and professional testing instruments, Qihong realizes full-process quality control from raw material screening, precision rolling, heat treatment to finished product inspection, ensuring batch stability and high consistency of ultra-thin stainless steel strips.

2. Core Product Advantages

2.1 Ultra-high Precision Dimensional Control

Adopting multi-roll precision rolling technology, the product achieves micron-level thickness and flatness control. The overall dimensional error is far lower than the industry standard, which can perfectly adapt to ultra-precision component stamping, micro-assembly and thin-film fitting scenarios, avoiding product failure caused by dimensional deviation.

2.2 Diversified Material Performance Matching

With complete steel grade series coverage, the product can meet differentiated performance requirements: 304/316L series focuses on corrosion resistance for medical and environmental equipment; 301 series features high elasticity and toughness for electronic elastic components; 430 series has high cost performance for civil precision parts, realizing precise matching of performance and application scenarios.

2.3 Strict Quality Testing & Stable Batch Supply

All ultra-thin stainless steel strips undergo eddy current flaw detection, spectral component analysis, hardness testing and salt spray resistance testing before leaving the factory, eliminating internal defects and performance instability. The standardized factory production line supports large-scale batch production while ensuring customized small-batch processing, realizing stable and efficient supply for global customers.

2.4 Excellent Processability & Durability

The product has uniform internal stress, good ductility and bending resistance, supporting multi-time stamping, folding and fine processing. It can withstand more than 200,000 times of repeated bending without deformation and fracture, and has long service life in high-frequency use scenarios.

3. Practical Application Cases

Qihong ultra thin stainless steel strips have been widely used in high-end manufacturing fields, helping customers solve precision material bottlenecks and obtain stable market recognition. The following are typical practical application cases:

Case 1: Consumer Electronics Foldable Component Application

A domestic consumer electronics manufacturer has long faced the problem of insufficient toughness and poor folding resistance of imported ultra-thin steel strips for foldable screen buffer sheets. After cooperating with Qihong, the enterprise adopted Qihong 0.02mm 301 ultra-thin stainless steel strip. The product has ultra-high flexibility and structural stability, which can adapt to the repeated folding of foldable mobile phones. After actual verification, it can withstand 200,000+ folding tests without cracking or deformation, completely solving the product durability problem. At the same time, Qihong’s stable batch supply effectively reduces the customer’s procurement cost and supply chain risk.

Case 2: New Energy Battery Explosion-proof Valve Material Application

For the precision explosion-proof valve components of new energy vehicle power batteries, the material requires extremely strict hardness consistency and thickness tolerance to ensure instantaneous opening and pressure relief under abnormal internal pressure. Qihong customized 0.05mm 304L ultra-thin stainless steel strip for a new energy enterprise. Through precise rolling and stress relief treatment, the product has uniform rebound coefficient and stable hardness value, effectively avoiding battery failure risks caused by material performance deviation. After mass application, the customer’s product qualification rate increased by 98%, and the safety performance of battery components was significantly improved.

Case 3: Medical Implantable Sensor Accessories Application

A medical device enterprise needs ultra-thin corrosion-resistant metal materials for implantable glucose sensor micro-fixation components, which require resistance to human body fluid corrosion, high-temperature sterilization and ultra-thin lightweight characteristics. Qihong provided customized 316L ultra-thin stainless steel strip with a thickness of 0.015mm. The product has excellent biocompatibility and corrosion resistance, no deformation after repeated high-temperature sterilization, and meets the strict medical grade safety standards, successfully helping the customer complete the iterative upgrade of medical precision components.

4. Product FAQ

Q1: What steel grades and thickness specifications are available for Qihong ultra thin stainless steel strips?

A: Qihong ultra thin stainless steel strips cover complete mainstream steel grades, including 201, 301, 304, 316L, 310S, 430, 441, 420, 631, 904L, etc. The conventional thickness range is 0.01mm-0.1mm, and supports customized thickness, width, surface treatment (brushed, polished, matte) and precision slitting processing. We can provide exclusive customized solutions according to customers’ actual application scenarios and performance requirements.

Q2: What are the main application scenarios of ultra thin stainless steel strips?

A: Relying on ultra-high precision, high toughness and corrosion resistance, our ultra-thin stainless steel strips are mainly used in high-end precision manufacturing fields. Typical scenarios include foldable electronic component buffer sheets, new energy battery explosion-proof valves and insulating gaskets, medical implantable sensor accessories, aerospace precision sensing components, flexible solar panel substrates, high-precision hardware fasteners and ultra-thin decorative parts, which can meet the high-standard material needs of multiple industries.

Q3: What quality assurance and after-sales services can be provided?

A: As a professional supplier and manufacturer, Qihong implements full-process quality inspection for all products, and can provide official material certification, test reports (salt spray test, hardness test, spectral analysis, flaw detection report) and other qualification documents. All products comply with international industrial standards. In terms of service, we support free sample testing, customized processing, fast batch delivery and one-stop after-sales technical guidance. For product quality problems caused by production processes, we provide free replacement and after-sales solution optimization services to ensure customers’ legitimate rights and interests.

5. Brand Strength & Service Commitment

Ningbo Qihong Stainless Steel Co., Ltd. is a professional precision stainless steel material enterprise integrating R&D, production and sales. Adhering to the business philosophy of "survive by quality, develop by credibility, improve by efficiency", the company relies on advanced production equipment, scientific management system and professional technical team to focus on the R&D and production of precision stainless steel strips, sheets and supporting precision fasteners.

While ensuring product quality stability, Qihong adheres to the service principle of "cooperation, mutual assistance and symbiosis", provides customized material solutions, efficient logistics distribution and professional technical support for global customers, and is committed to becoming a first-class professional supplier of ultra-thin precision stainless steel materials in the industry, creating win-win cooperation value for partners.