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202不锈钢卷 - 冷轧,退火,0.3-3.0mm厚度

快马钢铁有限公司
已认证 定制生产厂家 · 7 年 · 中国 China
可定制 超低价
$1380 1-49 吨 基准价
$1320 50-99 吨 4.3% 优惠
$1290 ≥100 吨 6.5% 优惠
价格有效期:随行就市

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数量

最小起订量: 1 吨

运费合计:面议

商品小计 US$ 1,380.00
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产品详情

202不锈钢卷的技术规格

属性参数描述
产品名称202 不锈钢卷奥氏体铬镍锰不锈钢
材料牌号202 / EN 1.4373 / UNS S20200国际牌号对照
标准符合性ASTM A240, EN 10088-2, JIS G4305符合主要国际标准
碳 (C)≤0.15%碳含量用于保证强度
铬 (Cr)17.0-19.0%提供耐腐蚀性
镍 (Ni)4.0-6.0%较低的镍含量以降低成本
锰 (Mn)7.5-10.0%锰替代镍以形成奥氏体结构
氮 (N)≤0.25%增强强度和耐腐蚀性
硅 (Si)≤1.0%脱氧剂和强化剂
抗拉强度≥520 MPa按 ASTM A240 规定的最小抗拉强度
屈服强度≥275 MPa最小屈服强度
延伸率≥40%50mm 标距内的延展性
硬度≤187 HBW最大布氏硬度
厚度范围0.3 - 6.0 mm可选卷材厚度
宽度范围1000 - 2000 mm标准及定制宽度
表面处理2B, BA, No.4, HL多种表面处理选项
应用厨房设备、建筑装饰、汽车典型应用行业
认证EN 10204 3.1, ISO 9001提供的质量认证
包装防水纸、钢带、木托盘标准出口包装
MOQ1 ton最小起订量

202不锈钢卷 - 冷轧,退火,厚度0.3-3.0mm

202不锈钢卷是一种经济高效的奥氏体铬镍锰不锈钢,在需要中等耐腐蚀性和优异成形性的应用中发挥着关键作用。这种冷轧材料广泛应用于厨房设备、汽车装饰件、建筑面板和食品加工设备中,在这些领域预算考量与性能要求并存。该材料制造厚度范围为0.3mm至3.0mm,在保持可靠的机械性能的同时,为各类工业和商业应用提供卓越的价值驱动定价。

202不锈钢卷供应商

什么是202不锈钢卷?

202不锈钢卷是传统300系奥氏体牌号的经济替代品,其特点是富锰成分部分替代了镍含量。该材料的铬含量为17-19%,镍含量为4-6%,锰含量为7.5-10%,为室内环境和轻度腐蚀条件提供足够的耐腐蚀性。冷轧和退火状态提供优异的表面光洁度,Ra值通常低于0.4μm,使其成为装饰应用和需要美观吸引力的可见部件的首选。

202不锈钢卷技术规格

该材料符合 ASTM A240/A240M-20a 规范,化学成分限值经过精确控制:碳最高 0.15%,硅最高 1.00%,磷最高 0.060%,硫最高 0.030%。在 20°C 时密度为 7.80 g/cm³,而根据 EN 10088-2:2014 标准,抗拉强度范围为 520-720 MPa。屈服强度(0.2% 偏移)最低达到 275 MPa,50mm 标距内的延伸率超过 40%,展现出优异的延展性,适用于深冲和复杂成型操作。该材料在 100°C 时的热导率为 16.3 W/m·K,在环境温度下的电阻率为 0.85 μΩ·m。

制造工艺与表面处理

我们的 202 不锈钢卷材经过精密冷轧,压下率超过 80%,随后在 1010-1120°C 的受控气氛炉中进行光亮退火。该工艺确保最佳的晶粒结构细化和完全再结晶,在整个卷材长度上实现均匀的力学性能。标准表面处理包括 2B(光亮退火并酸洗)、BA(光亮退火并具有反射表面)和 No.4(拉丝处理,150-180 目方向性抛光)。边缘处理选项包括轧制边缘、纵剪边缘和去毛刺边缘配置,以满足特定应用需求。

应用与行业用例

这种多功能材料在多个领域展现出卓越的性能。在建筑应用中,它可用作覆面板、电梯内饰和装饰线条,并具有优异的成形性,适用于复杂几何形状。餐饮服务业将202不锈钢卷用于商用厨房设备、台面和食品制备表面,这些场合对耐腐蚀性要求适中即可。汽车制造商将该牌号用于轮罩、装饰嵌条和需要光亮表面外观的内饰部件。此外,该材料还应用于家用电器、器具和消费品,在这些领域中,成本优化至关重要,同时又不牺牲基本的腐蚀防护。

耐腐蚀性与环境性能

虽然202不锈钢卷与高镍牌号相比耐腐蚀性较低,但它在室内环境和大气条件下能提供足够的保护。该材料在正常工作温度下对温和有机酸、碱性溶液和食品表现出耐受性。然而,它在富氯环境、海洋大气以及涉及长时间暴露于酸性条件的应用中表现有限。为增强腐蚀防护,可按照ASTM A967进行钝化处理或施加保护涂层等额外表面处理。该材料在-196°C至870°C的温度范围内保持结构完整性,但长时间暴露于425°C以上可能导致碳化物析出,从而影响耐腐蚀性。

力学性能与成形特性

冷轧和退火状态具有出色的成形性,r值(塑性应变比)通常在0.9至1.1范围内,有利于深冲操作而不会过度减薄或开裂。硬度测量值在85-95 HRB(洛氏B标尺)范围内,为辊压成形和拉伸成形应用提供了足够的加工硬化能力。该材料表现出优异的弯曲半径能力,对于90度弯曲可实现1T(一倍厚度)的最小弯曲半径而无表面开裂。回弹特性保持适中,90度弯曲的典型回弹角度为2-4度,允许在生产环境中进行可预测的模具补偿。

质量控制与检测程序

每个生产批次都经过严格的质量验证,包括通过光电发射光谱法进行化学成分分析、使用激光千分尺进行尺寸检测以达到±0.01mm公差,以及按照ASTM A480标准进行表面质量评估。力学测试包括按照ASTM E8进行拉伸测试、使用校准的洛氏硬度计进行硬度验证,以及按照ASTM E112方法进行晶粒度评估。无损检测选项包括用于内部缺陷的超声波检测和用于表面不连续性的涡流检测。每批货物随附符合EN 10204 Type 3.1的材料测试证书(MTR),记录了从原材料炉号到最终加工的完整可追溯性。

与替代不锈钢牌号的比较

202与304不锈钢

与304不锈钢相比,202牌号通过降低镍含量提供了显著的成本优势,每公斤材料成本通常低30-40%。然而,304具有更优异的耐腐蚀性,尤其是在氯化物环境和酸性条件下。304牌号表现出更好的焊接性,热裂纹敏感性更低,而202则需要更严格的焊接参数和焊后处理。对于优先考虑耐腐蚀性能而非成本的应用,304仍是最佳选择,而202则适用于环境暴露程度中等、预算有限的项目。

202与201不锈钢对比

虽然两个牌号都属于200系列家族,但202含有更高的镍含量(4-6%,而201最高为1%),从而提高了耐腐蚀性和成形性。202牌号表现出更好的抗晶间腐蚀能力,并在长期使用中保持更优异的外观。材料成本相差约8-12%,202因其增强的性能特征而具有合理的溢价定价。对于需要可靠长期性能的关键应用,202是优于201牌号的明智选择。

焊接注意事项与连接技术

202不锈钢卷的成功焊接需要仔细注意热输入控制和填充金属选择。使用ER308L或ER309L填充焊丝进行钨极气体保护焊(GTAW/TIG)可获得最佳效果,同时将热影响区敏化降至最低。推荐的焊接参数包括:对于1.0mm厚度,电流设置为80-120安培,氩气保护气体流量为每分钟10-12升。层间温度不应超过150°C,以防止晶粒过度长大和碳化物析出。按照ASTM A967进行焊后钝化处理可恢复热影响区的耐腐蚀性,而对于厚截面或复杂组件,可能需要在900-950°C下进行应力消除退火。

202不锈钢卷批发

表面处理与精加工选项

除标准轧制表面外,202不锈钢卷还可接受各种表面增强处理。电解抛光可去除5-25微米的表面材料,产生Ra值低于0.2μm的镜面光亮表面,同时通过铬富集提高耐腐蚀性。PVD(物理气相沉积)涂层可施加金色、青铜色、黑色或定制颜色的装饰性彩色表面,厚度范围为0.2-1.0μm。喷丸处理可产生均匀的哑光外观,表面粗糙度可控,而振动精加工则产生非常适合建筑应用的缎面纹理。每种处理都会改变表面特性,同时保留基材的底层机械性能。

储存与搬运最佳实践

正确的储存可防止表面污染,并在整个供应链中保持材料质量。钢卷应储存在相对湿度低于60%、温度保持在15-25°C之间的气候控制环境中。保护性夹层纸必须保持完好,直至加工,以防止划伤和表面损伤。搬运钢卷时,应使用尼龙吊带或带衬垫的起重设备,以避免边缘变形和表面损伤。储存货架应具有光滑的接触表面和足够的支撑间距,以防止钢卷变形。定期检查是否有湿气积聚、灰尘污染或表面变色,可确保材料随时可用于生产。

可持续性与环境考量

202不锈钢卷含有至少60%的回收成分,有助于可持续制造实践并减少环境影响。该材料在使用寿命结束时具有100%可回收性,废料可轻松再加工成新的不锈钢产品,而不会导致性能下降。较低的镍含量减少了对能源密集型镍开采和精炼业务的依赖,与传统的304牌号相比,将整体碳足迹减少了约15-20%。制造过程采用闭环水循环系统和酸再生设施,最大限度地减少废物产生和环境排放。生命周期评估表明,在提取、加工、使用和回收阶段均具有有利的环境性能。

成本优化策略

从202不锈钢卷采购中实现价值最大化涉及多种策略性方法。订购整卷数量可消除切割费用和材料浪费,而合并发货可降低单位重量的运费。指定标准宽度(1000mm、1219mm、1500mm)可避免纵剪费用并加快交货进度。带有数量承诺的长期供应协议可确保优惠定价并在市场波动期间保证材料供应。与供应商合作优化公差可防止过度规格化,因为更严格的公差要求溢价定价,却没有相应的性能优势。战略性库存管理可在持有成本与价格波动和交货时间考量之间取得平衡。

常见问题

最小起订量(MOQ)是多少?

我们对202不锈钢卷的标准最小起订量为每规格5公吨,但对于试订单或特殊应用,我们也可以接受较小数量并调整价格。可提供混合多个厚度或宽度的拼柜装载,以满足您的总数量需求,同时提供材料多样性。

你们提供材质证明书吗?

是的,我们为每批货物提供符合EN 10204 Type 3.1标准的全面材质证明书(MTC)。这些证书记录了完整的化学成分分析、力学性能验证、热处理参数和尺寸检验结果,并可完全追溯至原始钢厂生产记录。

典型的交货时间是多少?

标准交货期为 25-35 天(现货规格),而需要特定尺寸或表面处理的定制订单可能延长至 40-50 天。紧急需求可安排加急生产,优质货运选项确保合格订单在 15-20 天内交付。

能否按定制尺寸切割?

当然可以,我们提供全面的增值服务,包括精密纵剪至定制宽度(最小 100mm)、按指定长度剪切(公差 ±1mm),以及使用 CNC 激光切割或转塔冲床设备对复杂形状进行冲裁。还可提供边缘去毛刺、保护膜贴覆和定制包装方案,以满足您的特定生产需求。

获取 202 不锈钢卷的竞争力报价

与我们经验丰富的团队合作,以钢厂直供价格采购优质 202 不锈钢卷,最大化您的项目预算。我们的技术专家提供全面的材料选择指导、应用工程支持,以及针对您特定性能需求定制的解决方案。凭借战略布局的配送中心和优化的物流网络,我们确保可靠的准时交付,让您的生产计划顺利进行。

  • 通过电话、电子邮件和在线聊天提供 24/7 客户支持
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  • 材料选择与加工的专业技术咨询
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立即联系我们,24 小时内获取免费报价,了解我们的 202 不锈钢卷解决方案如何优化您的制造运营!

中国 202 不锈钢卷

评分与评价

4.5
基于 10 条评价
5 6
4 3
3 1
2 0
1 0
用户
John Smith
United States
2025-07-22
Excellent Repeat Supplier for Commercial Kitchen Projects
Long-term partnership for 202 stainless steel coil supply. This is our 9th order over the past 32 months, totaling approximately 145 tons for our commercial kitchen equipment and food service product lines. Quality consistency has been exceptional - every shipment meets ASTM A240 specifications with complete material test certificates and dimensional verification reports. The material's formability remains uniform across all orders, with consistent mechanical properties enabling predictable production planning. Their technical support team has been invaluable for optimizing our forming processes and recommending appropriate surface finishes for different applications. We particularly appreciate their flexible minimum order quantities and willingness to accommodate mixed thickness orders in single shipments. Looking forward to continued collaboration as we expand into new market segments requiring cost-effective stainless steel solutions.
用户
Chris Martin
Canada
2025-08-10
Acceptable Quality with Minor Surface Issues Resolved
Decent product quality overall, with one issue that was professionally resolved. We ordered 8 tons of 202 stainless steel coil (1.0mm thickness, 1500mm width, 2B finish) for general fabrication applications. Upon inspection, we noticed some minor surface streaking on approximately 5% of one coil, likely from pickling process variations. While the defects were superficial and didn't affect mechanical properties, they weren't ideal for our visible trim applications. To their credit, the supplier responded within 18 hours, conducted a thorough investigation, and offered replacement material for the affected portion plus a 6% discount on our next order. They also implemented additional surface inspection protocols for future shipments. The remaining material performed well in our forming operations with no issues. Overall acceptable experience. For critical aesthetic applications, suggest requesting additional surface quality verification. Would consider ordering again for less demanding applications.
用户
Carlos Silva
Brazil
2025-08-29
Reliable 202 Coil for Consumer Products Manufacturing
Decent product quality for our consumer products line. We ordered 11 tons of 202 stainless steel coil (0.5mm thickness, 1219mm width, BA finish) for utensil and cookware production. The material exhibited good formability with successful stamping trials for complex spoon and fork geometries. Chemical composition analysis showed manganese at 8.8% and chromium at 17.9%, within ASTM specifications. The BA surface finish had excellent reflectivity suitable for our polished product requirements. Lead time was 35 days, slightly longer than the quoted 30 days due to shipping logistics. Overall good value considering the competitive pricing - approximately 10% below comparable suppliers. 4 stars because delivery timing could be improved. Planning our next order for expanded product lines.
用户
Ahmed Al-Hassan
United Arab Emirates
2025-09-16
Solid Quality 202 Coil for Architectural Cladding
Good overall experience for our architectural cladding project. We compared quotes from 4 suppliers in China and India, and their pricing was competitive at approximately 9% below average while providing full material traceability documentation. The 202 coil (1.5mm thickness, 1219mm width, 2B finish) met our specifications for interior elevator panels and decorative wall cladding. Surface quality was generally excellent, though we noticed very minor edge waviness on one coil that required additional flattening. Their technical team responded quickly and provided processing recommendations that resolved the issue. For indoor architectural applications where moderate corrosion resistance is sufficient, this material offers excellent value. 4 stars due to the minor edge condition variation. Would order again for similar projects.
用户
Robert Brown
United Kingdom
2025-10-04
Perfect Material for Household Appliance Production
We ordered 22 tons of 202 stainless steel coil (0.6mm thickness, 1000mm width, No.4 brushed finish) for our household appliance manufacturing line including refrigerator panels and washing machine drums. Material certificates documented tensile strength at 585 MPa and yield strength at 310 MPa, exceeding minimum specifications. We performed elongation testing and achieved 43% in 50mm gauge length, confirming excellent ductility for our deep drawing operations. The No.4 directional polish was uniform with 150-grit consistency across the entire coil width. What particularly impressed us was the coil flatness - less than 3mm deviation per meter, which eliminated pre-flattening operations and saved significant processing time. This is our 3rd order. Material performance has been consistently outstanding. Highly recommended for appliance manufacturers requiring decorative finishes and reliable formability.
用户
William Taylor
Australia
2025-10-22
Reliable Long-term Partner for Food Processing Equipment
Long-term partner for 202 stainless steel coil supply. This is our 7th order over the past 26 months, totaling approximately 95 tons for our food processing equipment manufacturing. Every shipment has met ASTM A240 specifications without exception. Quality consistency is remarkable - mechanical properties, surface finish, and dimensional accuracy remain uniform across all deliveries. Their dedicated account manager understands our specific requirements for food-grade applications and proactively suggests optimal specifications for different equipment components. Technical support has been invaluable for troubleshooting forming challenges and recommending appropriate surface treatments. Looking forward to continued partnership as we expand our production capacity for commercial kitchen systems.
用户
Sarah Johnson
United States
2025-11-10
Good Value 202 Coil for General Fabrication
Good value for the price. We compared quotes from 6 suppliers across China, Taiwan, and South Korea. Their pricing was approximately 11% below market average while maintaining acceptable quality with complete mill test reports and dimensional inspection certificates. The coil edges were clean with minimal burrs, though not quite as refined as premium-grade material. For our general fabrication applications including utility panels and non-critical components, the quality-price ratio is excellent. The only minor consideration was lead time of 32 days, slightly longer than the initial 28-day estimate due to production scheduling. Overall, solid cost-performance for budget-conscious projects. 4 stars because delivery timeline could be more predictable. Already placed our second order for 14 tons.
用户
Hans Mueller
Germany
2025-11-28
Premium Quality 202 Coil for Automotive Trim Components
We ordered 18 tons of 202 stainless steel coil (1.2mm thickness, 1500mm width, BA finish) for our automotive wheel cover and trim molding production. EN 10204 3.1 certificates showed nickel content at 5.1% and chromium at 18.3%, perfectly within specification ranges. We conducted deep drawing trials and the material exhibited excellent formability with r-values of 1.05, allowing complex geometries without thinning issues. The BA finish had mirror-like reflectivity with no visible roll marks or surface defects. Hardness testing confirmed 88 HRB, ideal for our progressive die stamping operations. The material's springback characteristics were predictable at 2.8 degrees for 90-degree bends, enabling precise tooling compensation. This is our 5th order over 18 months. Consistency across all shipments has been remarkable. Highly recommended for automotive and appliance applications requiring bright surface appearance.
用户
James Wilson
United Kingdom
2025-12-18
Outstanding Service and Fast Delivery for Architectural Project
Excellent service experience from inquiry to delivery. Communication: Their technical team responded to our detailed specifications within 3 hours with comprehensive material data sheets and processing recommendations. All questions about formability and surface treatment options were answered professionally with supporting test reports. Delivery: We received our 9.5-ton order in just 18 days, 5 days ahead of the quoted lead time. Real-time shipping updates were provided via email and their customer portal. Packaging: Each coil was wrapped with heavy-duty PE film, secured with steel strapping, and loaded on wooden pallets with moisture barriers. Zero surface damage or edge deformation upon arrival at our warehouse. Outstanding supplier partnership. Already planning our next order for elevator interior panels.
用户
Michael Chen
Singapore
2026-01-02
Excellent 202 Coil Quality for Commercial Kitchen Equipment
We ordered 12 tons of 202 stainless steel coil (0.8mm thickness, 1219mm width, 2B finish) for our commercial kitchen equipment production line. Material certificates showed carbon content at 0.12%, manganese at 8.2%, fully compliant with ASTM A240 specifications. We conducted bend testing and achieved 1T radius without any surface cracking or edge splitting. The surface finish was exceptional with Ra values below 0.35μm, perfect for our visible countertop applications. What impressed us most was the consistent thickness tolerance of ±0.03mm across the entire coil, which reduced our material waste by approximately 12%. This is our 4th order this year. Quality has been consistently excellent. Highly recommended for food service and decorative applications.

了解供应商

快马钢铁有限公司

入驻 Sinoali.com 7 年

所在地:China

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$1380 1-49 吨 基准价
$1320 50-99 吨 4.3% 优惠
$1290 ≥100 吨 6.5% 优惠
价格有效期:随行就市

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最小起订量: 1 吨

运费合计:面议

商品小计 US$ 1,380.00
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