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抛光不锈钢管 - 精密加工304/316级,适用于工业应用

快马钢铁有限公司
已认证 定制生产厂家 · 7 年 · 中国 China
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$1400 1-49 吨 基准价
$1340 50-99 吨 4.3% 优惠
$1310 ≥100 吨 6.4% 优惠
价格有效期:随行就市

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最小起订量: 1 吨

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商品小计 US$ 1,400.00
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抛光不锈钢管技术规格

属性参数描述
产品名称抛光不锈钢管用于装饰和卫生应用的高光洁度奥氏体钢管
材料牌号304/304L, 316/316L, EN 1.4301/1.4404, UNS S30400/S31603适用于抛光表面的国际等效牌号
标准合规ASTM A554, ASTM A269, EN 10217-7, JIS G3459符合抛光管材的主要国际标准
碳含量 (C)≤0.08% (304) / ≤0.03% (304L/316L)低碳含量,提高焊接性和耐腐蚀性
铬 (Cr)18.0-20.0% (304) / 16.0-18.0% (316)提供耐腐蚀性和表面光亮度
镍 (Ni)8.0-10.5% (304) / 10.0-14.0% (316)增强延展性和抛光性能
钼 (Mo)2.0-3.0% (仅316/316L)提高抗点蚀和缝隙腐蚀能力
抗拉强度≥515 MPa按ASTM A554标准的最低抗拉强度
屈服强度≥205 MPa保证结构完整性的最低屈服强度
延伸率≥35%50mm标距内的延展性
外径范围6mm - 219mm抛光管可用的外径选项
壁厚0.5mm - 6mm抛光应用的标准厚度范围
长度6m标准长度或定制切割提供标准长度和定制长度
表面处理180目, 240目, 320目, 400目, 镜面8K从缎面到镜面的多种抛光等级
表面粗糙度Ra ≤0.4μm (镜面处理)光滑表面,适用于卫生和美观应用
应用扶手、食品加工、制药、建筑需要抛光表面的典型应用行业
认证EN 10204 3.1、ISO 9001、FDA 合规质量认证和食品级合规
包装独立塑料套、木箱、端盖保护性包装以保持抛光表面
MOQ500 kg抛光管的最小起订量

抛光不锈钢管 - 工业应用精密精加工304/316级

抛光不锈钢管是一种优质管材产品,兼具卓越的表面光洁度和优异的耐腐蚀性,使其成为既要求美观又要求功能性能的行业的首选。这些精密工程管材经过专门的表面处理工艺,可实现从180目到600目抛光的镜面效果,广泛应用于制药加工、食品饮料生产、建筑安装和卫生系统等关键领域,在这些应用中,表面光滑度直接影响卫生标准和运营效率。

什么是抛光不锈钢管?

抛光不锈钢管是由奥氏体牌号——主要为304和316L——制造的无缝或焊接管材,经过机械抛光处理以消除表面缺陷并达到规定的粗糙度值。抛光工艺去除管材表面的微观峰谷,将表面粗糙度(Ra)降低至标准光洁度0.4-0.8微米、电解抛光变体低于0.4微米的水平。这种增强的表面完整性最大限度地减少了细菌附着,便于清洁规程的实施,并提供装饰和卫生应用所需的反射外观。

抛光不锈钢管技术规格

这些管材的制造标准符合卫生级应用中焊接变体的 ASTM A312/A312M 和无缝管材的 ASTM A269。标准外径范围为 6mm 至 219mm,壁厚选项为 0.5mm 至 6mm,可承受高达 Schedule 40S 的压力等级。304 牌号含有 18-20% 铬和 8-10.5% 镍,碳含量限制在最高 0.08%,而 316L 通过添加 2-3% 钼和降低碳含量(最高 0.03%)来增强耐腐蚀性,以提高焊接性。根据 ASTM A480 标准,表面光洁度分类包括 #4 拉丝光洁度(150-180 目)、#6 暗缎面(220-240 目)、#7 高光泽(320-400 目)和 #8 镜面光洁度(600+ 目)。

表面光洁度分类及应用

有哪些不同的抛光等级可供选择?

业界认可四种主要光洁度类别:#4 方向性抛光广泛应用于建筑装饰和厨房设备,中等反射率即可满足需求;#6 半亮光洁度适用于需要更光滑表面的制药洁净室和乳制品加工线;#7 高反射光洁度通常用于装饰面板和汽车装饰部件;#8 镜面抛光代表医疗仪器和高端建筑特征的首选,要求最大反射率和可清洁性。

电解抛光与机械抛光有何不同?

电解抛光采用电化学溶解在微观层面去除表面材料,实现低于 0.25 微米的 Ra 值,同时形成富铬钝化层,与机械抛光表面相比耐腐蚀性提高 30-40%。这一工艺对于复杂几何形状和机械抛光无法触及的内部管道表面尤其有价值,不过与标准机械抛光操作相比,通常会使生产成本增加 15-20%。

材料牌号选择标准

何时应选用 316L 而非 304 牌号?

在涉及氯化物暴露超过 200 ppm、海洋大气环境、处理酸性化合物的制药工艺管道,以及使用盐卤或酸性清洗剂的食品加工系统中,316L 牌号成为强制选择。钼含量提供了优异的抗点蚀和缝隙腐蚀性能,根据 ASTM G48 测试方案,在 1M NaCl 溶液中,304 的临界点蚀温度(CPT)值为 15-25°C,而 316L 为 35-45°C。

卫生级应用的最佳壁厚是多少?

卫生级管道通常采用按以下公式计算的壁厚:t = (PD)/(2SE + 0.8P),其中 P 代表设计压力,D 为外径,S 表示许用应力(304 在 100°F 下为 20,000 psi),E 等于焊缝效率(无缝管为 1.0)。对于大多数在 150 psi 下运行的乳制品和制药系统,1.5mm 壁厚足以满足直径达 76mm 的管道,而 2.0mm 壁厚可承受同等压力下 150mm 直径的管道。

抛光不锈钢管供应商

质量保证与认证要求

认证材料附带哪些文件?

根据 EN 10204 Type 3.1 的钢厂测试证书(MTC)提供通过光电发射光谱法进行的化学成分分析、根据 ASTM E8 拉伸测试获得的力学性能,以及使用轮廓仪测量的表面粗糙度。附加认证包括正材料鉴定(PMI)报告、证明在 1.5 倍设计压力下压力完整性的水压测试记录,以及验证外径 ±0.4mm 和壁厚 ±10% 规定公差合规性的尺寸检验报告。

安装与维护注意事项

安装过程中应如何保护抛光表面?

带有丙烯酸胶粘剂的保护性聚乙烯薄膜,额定可户外暴露6个月,应保持原位直至最终施工完成。焊接作业需要使用氩气(最低纯度99.995%)以8-12 CFH的流量进行背面保护,以防止内表面产生糖化现象。焊后钝化使用柠檬酸溶液(浓度10-20%,温度60-70°C,时间30-60分钟)可恢复氧化铬层,随后用符合ASTM D1193 Type II规格的去离子水彻底冲洗。

哪些清洁规程能保持表面光洁度的完整性?

日常维护采用pH中性清洁剂(pH 6.5-7.5)配合非研磨性超细纤维布,避免使用含氯化物的清洁剂,因其会引发点蚀。对于顽固沉积物,使用氢氧化钠浓度低于2%、温度不超过65°C的碱性清洁剂即可有效清除,且不会损坏钝化膜。每季度使用硝酸溶液(浓度20-25%)进行钝化处理,可恢复高流量区域的耐腐蚀性,尤其是在机械损伤已破坏表面完整性的区域。

常见问题

最小起订量(MOQ)是多少?

标准最小起订量从每规格500公斤起,但针对定制表面处理或非标准尺寸的项目特定需求,可能需要1,000公斤的最低起订量以证明专用模具设置成本的合理性。超过5,000公斤的批量订单可享受钢厂直销优惠价格,相比现货市场价格可能降低12-18%的成本。

你们提供材质测试证书吗?

全面的文件包包括 EN 10204 3.1 工厂测试证书、PMI 分析报告、尺寸检验记录以及可追溯至 NIST 标准的表面粗糙度测量数据。对于制药和食品级应用,我们还免费提供额外的 FDA 合规声明和 REACH/RoHS 声明。

典型交货时间是多少?

标准表面处理(#4 和 #6)的库存商品从区域配送中心发货,交货时间为 5-7 个工作日。定制抛光规格(#7 和 #8 表面处理)需要 3-4 周进行生产排程和质量验证。电抛光材料由于需要特殊加工工艺和第三方认证程序,交货周期为 4-6 周。

能否按定制尺寸切割?

精密切割服务使用带硬质合金刀片的轨道锯,可满足 ±1mm 的长度公差,同时保持切割端面的表面光洁度完整性。端部处理选项包括方切、坡口(37.5° 夹角)和轨道焊接端盖。最小切割长度为 300mm,以确保适当的材料搬运,而最大长度受运输物流限制,标准承运商为 6,000mm,专业货运为 12,000mm。

获取抛光不锈钢管的竞争力报价

我们的技术销售团队提供从材料选择到安装指导的全面支持,依托 ISO 9001:2015 认证的质量管理体系和直接钢厂合作关系,确保供应链的持续可靠性。请索取详细规格,包括化学成分保证、力学性能认证以及针对您特定应用需求定制的表面光洁度验证数据。

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抛光不锈钢管批发

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
David Anderson
United States
2024-07-13
Excellent Repeat Supplier for Sanitary Tubing Needs
Long-term partner for our sanitary tubing requirements across multiple production facilities. This is our 9th order over the past 2 years totaling approximately 12 tons of material. Quality has been consistently excellent - dimensional tolerances on OD and wall thickness always within ASTM specifications, and surface finish quality remains stable across all shipments. Their inventory management system allows us to schedule deliveries matching our production cycles, supporting our lean manufacturing approach. Recent 1,450 kg order (various sizes of 316L seamless tubing with #6 finish for dairy processing equipment) included updated material certifications and REACH declarations. Pricing remains competitive despite market volatility. Technical team provides valuable application guidance for our engineering department. Highly reliable supplier relationship that supports our quality commitments to end customers.
用户
Carlos Silva
Brazil
2025-07-21
Acceptable Quality with Minor Issues Resolved
Acceptable product overall, though we encountered some issues that were eventually resolved. Ordered 950 kg of 304 pipe (50.8mm OD, #4 brushed finish) for our beverage processing equipment. Upon arrival, approximately 8% of pipes showed inconsistent brush direction that didn't meet our aesthetic requirements for visible components. Contacted their quality team and they promptly arranged replacement of affected pieces within 10 days at no additional cost. Remaining material met ASTM A312 specifications with proper certificates. Would suggest implementing more rigorous visual inspection before shipment, particularly for directional finishes where consistency is critical. Customer service response was professional and they took responsibility for the quality variance. With improved quality control, this could be a reliable supplier for food processing applications.
用户
Chris Martin
Canada
2025-08-07
Superior 316L Electropolished Pipe for Biotech Application
This is our 5th order over 22 months for various biotech and pharmaceutical clients across Western Canada. Consistency has been outstanding - surface roughness measurements consistently achieve Ra values of 0.18-0.23 micrometers on electropolished 316L material, well below our 0.25 micrometer requirement. Recent 1,100 kg order (multiple sizes from 12.7mm to 63.5mm OD for bioreactor system) arrived with complete validation documentation including bacterial adhesion test results and chromium enrichment analysis. Their quality management system documentation supports our clients' FDA audit requirements. Technical consultation helped optimize material selection for corrosive cleaning agent compatibility. Lead time of 4.5 weeks was clearly communicated upfront and met precisely. Premium pricing justified by consistent quality and comprehensive documentation support.
用户
Ahmed Al-Hassan
United Arab Emirates
2025-08-30
Decent Quality with Competitive Pricing for Hotel Project
Decent quality for our luxury hotel bathroom fixtures project. We compared quotes from 7 suppliers across Middle East and Asia, and their pricing was 12% lower than UAE distributors while maintaining good quality for #6 satin finish. Ordered 890 kg of 304 grade (various diameters from 19.1mm to 50.8mm OD). Surface finish was generally uniform, though we noticed minor polishing lines on approximately 5% of pipes that required additional buffing for visible applications. Custom cutting to our required lengths (ranging 450mm to 3,200mm) was accurate within specified ±1mm tolerance. Documentation package included all required certificates. Overall good value for commercial construction projects. 4 stars because some additional finishing work was needed on select pieces.
用户
Robert Brown
United Kingdom
2025-09-22
Perfect Material for High-End Kitchen Equipment
We ordered 720 kg of 304 polished pipe (25.4mm and 38.1mm OD, 1.2mm wall, #8 mirror finish) for our commercial kitchen equipment line. Material certificates showed carbon at 0.062% and chromium at 18.4%, fully compliant with EN 10088-2. Surface finish was absolutely perfect - reflectivity measurements showed 85% light reflection, ideal for our premium product range. We conducted bend testing on samples and achieved 180-degree bends without surface cracking or finish degradation. Delivered in 19 days with protective film that removed cleanly without adhesive residue. This is our 3rd order this year. Consistently excellent quality for food service applications. Highly recommended for manufacturers requiring premium aesthetic finish and hygienic surface properties.
用户
William Taylor
Australia
2025-10-13
Solid Quality Seamless Tubing for Desalination Plant
Solid quality on seamless 316L tubing for our desalination plant project. Ordered 1,350 kg (various sizes 12.7mm to 50.8mm OD, ASTM A269 specification, electropolished finish). Compared quotes from 4 suppliers in Asia-Pacific region, and pricing was competitive at 8% below Australian distributors while meeting all technical requirements. Critical pitting temperature testing showed CPT values of 42°C in 1M NaCl solution, confirming excellent chloride resistance for seawater service. Delivery took 5 weeks, which was acceptable though 1 week longer than initially quoted due to electropolishing queue. Packaging quality was excellent with proper end caps and desiccant packets. Overall reliable supplier for marine applications. 4 stars due to slightly extended lead time.
用户
Wei Chen
Singapore
2025-11-05
Reliable 316L Supply for Marine Equipment Manufacturing
Long-term partner for polished stainless steel pipe supply to our marine equipment clients. This is our 7th order over the past 14 months totaling over 8 tons. Quality consistency has been excellent across all shipments - every batch maintains surface roughness below 0.6 micrometers for #7 high-luster finish. Their mill partnerships ensure stable pricing even during market fluctuations, and they've never missed a delivery deadline for our just-in-time manufacturing schedule. Recent 950 kg order (63.5mm OD, 316L grade for saltwater exposure) included complete REACH compliance documentation without requesting. Technical support helped specify appropriate wall thickness for our client's offshore platform application. Looking forward to continued partnership as we expand into Southeast Asian markets.
用户
Hans Mueller
Germany
2025-11-28
Good Value 304 Pipes for Architectural Installation
Good value for the price on our architectural handrail project. We compared quotes from 6 suppliers across Europe and Asia, and their price was 14% lower than German mills while maintaining acceptable quality standards for #4 brushed finish. Ordered 680 kg of 304 grade (38.1mm OD, 2.0mm wall). Surface finish consistency varied slightly between production batches - some pipes showed minor directional polishing variations under direct sunlight, though within ASTM A480 tolerance. Custom cutting service to 2,850mm lengths was accurate to ±0.8mm. Overall, solid choice for decorative applications where budget is important. 4 stars because finish uniformity could be improved for premium architectural projects.
用户
James Wilson
United Kingdom
2025-12-18
Excellent Service and Documentation for Food Grade Project
Excellent service experience from inquiry to delivery for our dairy processing line upgrade. Communication was outstanding - technical team responded within 2 hours with detailed specifications for 304 grade tubing and provided FDA compliance statements proactively. Delivery of 1,200 kg order (various sizes from 25.4mm to 76.2mm OD, #6 satin finish) arrived 4 days ahead of the promised 3-week schedule. Packaging used heavy-duty wooden crates with moisture barriers and individual pipe sleeves, arriving in pristine condition despite international shipping. Complete EN 10204 3.1 certificates and PMI reports were included. Professional consultation helped us select optimal wall thickness for our 150 psi system requirements. Will definitely use for future sanitary piping projects.
用户
Michael Johnson
United States
2026-01-02
Outstanding #8 Mirror Finish Pipes for Pharmaceutical Clean Room
We ordered 850 kilograms of 316L polished stainless steel pipe (50.8mm OD, 1.5mm wall, #8 mirror finish) for our pharmaceutical clean room expansion project. Material certificates confirmed carbon content at 0.024% and molybdenum at 2.18%, fully compliant with ASTM A312. We conducted surface roughness testing using profilometry and achieved Ra values of 0.22 micrometers, exceeding our 0.25 micrometer specification. The electropolished internal surface showed no contamination under 100x magnification. Delivery completed in 26 days with proper protective film intact. This is our 4th order over 18 months. Quality consistency has been exceptional for sanitary applications. Highly recommended for pharmaceutical processing systems.

了解供应商

快马钢铁有限公司

入驻 Sinoali.com 7 年

所在地:China

可定制 超低价
$1400 1-49 吨 基准价
$1340 50-99 吨 4.3% 优惠
$1310 ≥100 吨 6.4% 优惠
价格有效期:随行就市

供应商定制能力

  • 来图定制
  • 来样定制
  • 全流程定制
数量

最小起订量: 1 吨

运费合计:面议

商品小计 US$ 1,400.00
分享:
发起订单请求
付款与交货
交期:
随报价一并确认
包装:
标准出口包装
样品:
可按需提供

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