不锈钢是一种由多种元素组成的铁合金，是在自然环境或某些工业介质中具有一定化学稳定性的钢的总称，一般包括不锈钢和耐酸钢。
- Definition:, generally including stainless steel and acid-resistant steel.
- 主要成分：铁是基础成分，铬是使不锈钢获得耐蚀性的基本元素，当铬含量达到12%左右时，钢的耐蚀性会显著提升。除铁、铬外，还常含有镍、钼、硅、锰、钛、铌、碳、氮等元素。
- Main Components: Iron is the basic component,12%,, it often contains elements such as nickel, molybdenum, silicon, manganese, titanium, niobium, carbon, and nitrogen.

性能特点
 
Performance Characteristics
 
- 耐腐蚀特性：铬在钢表面形成一层极薄且致密的氧化膜，阻止钢基体被继续侵蚀，使不锈钢具有良好的耐腐蚀性，能抵抗大气、水、酸、碱、盐等介质的腐蚀。
- Corrosion resistance: Chromium forms an extremely thin and dense oxide film on the steel surface, preventing further erosion of the steel matrix, thus endowing stainless steel with good corrosion resistance, which can resist corrosion from media such as atmosphere, water, acid, alkali, and salt.
- 力学性能：不同类型的不锈钢具有不同的力学性能，如奥氏体不锈钢韧性好，低温韧度好，马氏体不锈钢强度高。
- Mechanical properties:, austenitic stainless steel has good toughness and low-temperature toughness, while martensitic stainless steel has high strength.
- 工艺特性：奥氏体不锈钢易于成型、可焊性好；铁素体不锈钢和马氏体不锈钢的加工性能则相对较差。
- Process characteristics: Austenitic stainless steel is easy to form and has good weldability; ferritic stainless steel and martensitic stainless steel have relatively poor processability.
- 磁性：铁素体不锈钢和马氏体不锈钢通常具有磁性，而奥氏体不锈钢一般无磁性。
- Magnetism: Ferritic stainless steel and martensitic stainless steel are usually magnetic, while austenitic stainless steel is generally non-magnetic.

 
生产工艺
 
Production Process
 
- 冶炼：主要采用电弧炉并经炉外精炼，以去除杂质，提高钢的纯净度和性能。
- Smelting: Mainly uses electric arc furnaces followed by secondary refining to remove impurities and improve the purity and performance of the steel.
- 浇铸：连铸是主要的浇铸工艺，可提高生产效率和产品质量。
- Casting: Continuous casting is the main casting process, which can improve production efficiency and product quality.
- 热加工：根据钢种特点控制加热温度和热加工工艺制度，以及热加工后的冷却速度。
- Hot working: Control the heating temperature, hot working process system, and cooling rate after hot working according to the characteristics of the steel grade.
- 冷加工：部分不锈钢在冷加工过程中需要进行多次中间退火处理，以消除加工应力，改善材料的性能。
- Cold working: Some stainless steels require multiple intermediate annealing treatments during cold working to eliminate processing stress and improve material performance.

应用领域
 
Application Fields
 
- 建筑领域：用于建筑的外墙、屋顶、结构部件、扶手、装饰元素等，如一些大型商业建筑的外立面会使用不锈钢板材。
- Construction field: Used in building exteriors, roofs, structural components, handrails, decorative elements,, stainless steel plates are used for the facades of some large commercial buildings.
- 工业领域：广泛应用于化工、机械制造、能源等行业，可制造化工容器、管道、反应釜、压力容器、核电设备、火电设备等。
- Industrial field: Widely used in chemical industry, machinery manufacturing, energy and other industries, and can be used to manufacture chemical containers, pipelines, reactors, pressure vessels, nuclear power equipment, thermal power equipment, etc.
- 交通运输领域：在汽车制造中用于增强车辆的结构强度和耐久性，如油箱、汽车排气系统等；在船舶制造中用于抵御海水的侵蚀。
- Transportation field: In automobile manufacturing, it is used to enhance the structural strength and durability of vehicles, such as fuel tanks and automobile exhaust systems; in shipbuilding, it is used to resist seawater erosion.
- 食品加工领域：由于其良好的卫生性能，常用于食品加工设备，如食品输送带、储罐、厨具等。
- Food processing field: Due to its good hygienic performance, it is often used in food processing equipment, such as food conveyors, storage tanks, and kitchen utensils.
- 医疗领域：可制作医疗器械、医疗设备的外壳、手术器械等。
- Medical field: Can be used to make medical devices, shells of medical equipment, surgical instruments, etc.

发货时间
 
Delivery Time
 
- 常规规格产品一般在订单确认后3-7个工作日内发货；特殊规格或定制产品，需根据生产周期协商确定发货时间，通常为10-30个工作日。
- Regular specification products are generally shipped within 3-7 working days after order confirmation; for special specifications or customized products, the delivery time needs to be negotiated according to the production cycle, usually 10-30 working days.
- 若遇原材料短缺、不可抗力等因素导致发货延迟，供方会提 个工作日通知需方，并协商调整发货时间。
- If delivery is delayed due to factors such as raw material shortage or force majeure, the supplier will notify the buyer 3 working days in advance and negotiate to adjust the delivery time.
 
售后服务
 
After-Sales Service
 
- 质量问题：若产品存在材质、尺寸等不符合订单约定的质量问题，需方在收货后7天内提出，供方将免费退换货，并承担相关运费。
- Quality issues: If the product has quality issues such as material and size that do not meet the order agreement, the buyer shall propose within 7 days after receiving the goods, and the supplier will provide free return and exchange, and bear the relevant freight.


付款与
 
Payment and Invoice
 
- 付款方式：支持电汇、 等方式，常规订单预付30%定金，余款在发货前结清；长期合作客户可协商 灵活的付款方式。
- Payment method: Telegraphic transfer,, a 30% deposit is prepaid, and the balance is settled before shipment; long-term cooperative customers can negotiate more flexible payment methods.
- 发票开具：供方在收到全款后3个工作日内开具 税专用发票，并邮寄给需方。
- Invoice issuance: The supplier will issue a special VAT invoice within 3 working days after receiving the full payment and mail it to the buyer.