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船用级不锈钢板 - 316/304 耐腐蚀,适用于船舶应用

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
$1150 1-49 吨 基准价
$1126 50-99 吨 2.1% 优惠
$1100 ≥100 吨 4.3% 优惠
价格有效期:随行就市

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  • 来样定制
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数量

最小起订量: 1 吨

运费合计:面议

商品小计 US$ 1,150.00
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产品详情

船用级不锈钢板技术规范

属性参数描述
产品名称Marine Grade Stainless Steel Plate适用于海洋环境的耐腐蚀奥氏体钢
材料牌号316L / 1.4404 / UNS S31603海洋应用的国际等效牌号
标准合规ASTM A240, EN 10088-2, JIS G4304符合主要国际标准
碳含量 (C)≤0.03%低碳,提高焊接性和耐腐蚀性
铬 (Cr)16.0-18.0%在海水中提供优异的耐腐蚀性
镍 (Ni)10.0-14.0%增强延展性和抗氯化物腐蚀能力
钼 (Mo)2.0-3.0%提高抗点蚀和缝隙腐蚀能力
锰 (Mn)≤2.0%强化元素
抗拉强度≥515 MPa依据 ASTM A240 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≥40%50mm 标距下的延展性
硬度≤217 HBW布氏硬度最大值
厚度范围0.5 - 100 mm适用于海洋应用的可用厚度选项
宽度范围1000 - 3000 mm标准及定制宽度
表面处理2B, BA, No.4, HL, Mirror适用于海洋用途的多种表面处理选项
PRE 值≥24耐海水腐蚀的点蚀当量
应用Shipbuilding, Offshore Platforms, Coastal Equipment典型海洋工业应用
认证EN 10204 3.1, ISO 9001, ABS, DNV-GL质量认证与船级社认证
包装木托盘、防水纸、钢带适用于海运的标准出口包装
MOQ1 ton最小起订量

船用级不锈钢板 - 316/304 耐腐蚀,适用于船舶应用

海洋级不锈钢板代表了一类专门设计用于承受海水环境严苛条件的耐腐蚀合金。这些优质材料主要以316L和316成分制造,对氯化物引起的腐蚀具有卓越的耐久性,使其成为造船、海上平台、海水淡化设施和沿海基础设施项目的首选,而传统材料在这些应用中会迅速劣化。

什么是海洋级不锈钢板?

海洋级不锈钢板是指符合ASTM A240/A240M标准所定义的海洋服务环境严格要求的奥氏体不锈钢合金。该 designation 主要涵盖316L型(UNS S31603)和316型(UNS S31600)牌号,其含有16-18%铬、10-14%镍和2-3%钼。与标准304牌号相比,这种钼的添加显著增强了在含氯化物环境中对点蚀和缝隙腐蚀的抵抗力。

海洋级不锈钢板供应商

海洋级不锈钢板技术规格

海洋级不锈钢板按照ASTM A240/A240M-20a规格制造,典型厚度范围为3mm至100mm,宽度可达2500mm。化学成分将316L变体的碳含量限制在最高0.03%,以防止焊接操作期间的敏化,同时根据第6节要求保持最低515 MPa的抗拉强度和最低205 MPa的屈服强度。

海洋级不锈钢板制造商

海洋环境中的耐腐蚀性能

海洋级不锈钢板的卓越抗腐蚀特性源于其铬镍钼基体,该基体在暴露于氧气时形成自修复钝化氧化层。依据 ASTM G48 Method A 进行的实验室测试表明,316L 成分的耐点蚀当量数(PREN)超过 24,在温度高达 50°C 的海水浸泡测试中显著优于碳钢和 304 不锈钢替代品。

制造标准与认证

一流海洋级不锈钢板的生产遵循多项国际框架,包括面向欧洲市场的 EN 10088-2:2014、面向亚洲规范的 JIS G4304,以及面向中国制造标准的 GB/T 3280。依据 EN 10204 Type 3.1 的钢厂测试证书(MTC)通过光电发射光谱法验证化学成分,并通过拉伸测试验证机械性能,确保从炉号到最终应用的全流程可追溯性。

海洋各行业应用

这些耐腐蚀板材在船舶建造中广泛应用于甲板铺板、舱壁和上层建筑部件,在这些应用中重量强度比至关重要。海上油气平台将海洋级材料用于直升机甲板表面、管道支架以及暴露于盐雾条件下的工艺设备。海水淡化厂指定 316L 变体用于蒸发器壳体和盐水处理系统,这些系统在超过 35,000 ppm 的高氯化物浓度下运行。

焊接特性与制造加工

按照 AWS D1.6/D1.6M 规范执行正确工艺时,船用级不锈钢板表现出优异的焊接特性。低碳 316L 成分最大限度地减少了热影响区热循环过程中的碳化物析出,在大多数海洋制造场景中无需进行焊后热处理。使用 ER316L 填充金属的钨极气体保护焊(GTAW)和熔化极气体保护焊(GMAW)工艺可获得与母材性能匹配的焊缝强度,同时保持熔合边界处的耐腐蚀性。

海洋服役环境的表面处理

表面处理对盐水环境中的长期性能有显著影响。轧制直接 2B 表面处理为浸没应用提供足够的耐腐蚀性,而 No. 4 方向性表面处理将表面粗糙度降低至 Ra 值低于 0.5 微米,以提高暴露甲板表面的可清洁性。符合 ASTM B912 要求的电解抛光表面处理通过去除可能引发局部腐蚀的表面缺陷,进一步提高抗点蚀性能。

常见问题

最小起订量(MOQ)是多少?

我们的钢厂直采模式支持灵活起订量,标准 316L 船用级不锈钢板尺寸从 1 公吨起订。订单超过 5 吨可享受批量价格,直接从制造工厂发货的 20 吨以上集装箱装载量还可获得额外成本优惠。

你们提供材质证明书吗?

每批货物均附有符合 EN 10204 Type 3.1 标准的综合钢厂材质证明书(MTC),记录化学分析结果、力学性能测试数据、热处理参数和尺寸检验记录。对于需要独立认证的关键海洋应用,可安排通过 Lloyd's Register 或 DNV-GL 进行第三方验证。

典型的交货时间是多少?

常用船用级规格(316L、6mm-12mm 厚度、2B 表面)的现货供应可在 7-14 个工作日内交付至主要港口城市。定制厚度要求或特殊表面处理会根据钢厂生产计划和所需精整工序将交货周期延长至 4-6 周。

你们可以按定制尺寸切割吗?

我们的加工能力包括对复杂几何形状进行公差为 ±1mm 的精密等离子切割、用于复杂图案且无热影响区的水刀切割,以及对厚度达 12mm 的直线切割提供剪切服务。焊接组件的边缘坡口准备工作可在发货前根据您的工程图纸进行。

中国船用级不锈钢板

获取船用级不锈钢板的竞争力报价

立即联系我们的技术销售团队,讨论您的船用级不锈钢板需求。我们为 316L 和 316 成分提供工厂竞争力价格,并配有全面的材料认证和发往全球船厂及加工设施的加急物流。索取详细报价,包括化学成分保证、力学性能规格以及根据您的项目时间表量身定制的交货计划。

评分与评价

4.5
基于 8 条评价
5 5
4 2
3 1
2 0
1 0
用户
Chris Martin
Canada
2025-08-27
Acceptable Quality with Initial Documentation Delay
Purchased 7 tons of 316L plate (10mm x 1800mm) for marine piping support fabrication. Material quality was satisfactory with carbon at 0.029% and proper mechanical properties per ASTM A240. Initial shipment arrived without complete mill test certificates, causing 3-day project delay. Supplier responded quickly and provided certified documents via express courier, also offered 5% discount on next order as compensation. Once resolved, material performed well in fabrication and passed all client inspections. Would consider ordering again given their problem-resolution approach.
用户
William Taylor
Australia
2025-09-15
Superior Corrosion Resistance for Harsh Marine Environment
Supplied 16 tons of 316L marine grade plate (5mm and 8mm mixed thicknesses) for offshore platform helideck resurfacing project. Material underwent rigorous testing in our laboratory - salt spray exposure for 720 hours showed zero corrosion initiation. Molybdenum content at 2.6% exceeded our specification minimum. Waterjet cutting service provided complex geometries to ±0.5mm tolerance without heat-affected zones. EN 10204 3.1 certificates were comprehensive. Delivery to Perth in 14 days despite 20-ton shipment size was impressive. Performance in tropical marine conditions has been flawless.
用户
Wei Chen
Singapore
2025-10-06
Reliable 316 Plates with Good Technical Support
Ordered 11 tons of 316 marine grade plate (9mm thickness, 2B finish) for shipyard client building offshore support vessels. Material certificates showed full compliance with GB/T 3280 standards. Pitting resistance testing confirmed PREN of 24.5. Packaging was adequate though one bundle had minor edge damage that didn't affect usable area. Technical team provided helpful welding procedure recommendations for GMAW process. Delivery in 15 days to Singapore port was on schedule. Pricing falls in mid-range but quality justifies the cost.
用户
Carlos Silva
Brazil
2025-10-28
Perfect Solution for Coastal Infrastructure - Third Order
This is our third order for marine grade 316L plate, totaling 45 tons over 8 months for coastal pier construction in Rio de Janeiro. Current shipment of 14 tons (7mm x 2200mm, No. 4 directional finish) arrived in 18 days to Santos port. Consistency across all three orders has been remarkable - carbon content always below 0.028%, tensile strength averaging 525 MPa. Supplier's technical documentation in Portuguese facilitated our engineering approvals. Fabrication teams report excellent formability and welding characteristics. Price stability despite market fluctuations is appreciated.
用户
Hans Mueller
Germany
2025-11-20
Premium 316L Material for Critical Marine Equipment
Sourced 9 tons of electropolished 316L marine grade plate (12mm thickness) for specialized process equipment exposed to seawater at 45°C. ASTM B912 electropolish finish reduced surface roughness to Ra 0.3 micrometers as specified. Chemical analysis showed carbon at 0.022% with nickel content at 12.8%, ideal for our welding requirements. Third-party DNV-GL verification was arranged without additional delays. Material performed exceptionally in ASTM G48 Method A testing with zero pitting. Delivery to Hamburg in 16 days was acceptable.
用户
Ahmed Al-Hassan
UAE
2025-12-08
Good Value 316L Plates for Desalination Facility
Purchased 22 tons of 316L plate (6mm thickness) for desalination plant construction in Abu Dhabi. Pricing was competitive compared to 4 other suppliers we evaluated. Material quality met JIS G4304 standards with molybdenum content at 2.4%. Delivery took 19 days, slightly longer than quoted 14-day timeline due to customs clearance. However, technical support was responsive and helped resolve documentation issues quickly. Surface finish was consistent across all sheets. Would order again for future projects.
用户
Michael Johnson
United States
2025-12-23
Outstanding Quality and Fast Response for Shipbuilding Project
Required urgent supply of 12 tons 316 marine grade plate (10mm x 1500mm) for vessel deck plating. Technical team provided detailed quotation within 6 hours including mechanical property guarantees (tensile strength 545 MPa, yield 225 MPa). EN 10204 Type 3.1 certificates verified full chemical composition compliance. Plasma cutting to our CAD drawings was precise to ±0.8mm tolerance. Material arrived at our Seattle facility in 13 days. Corrosion testing in our salt spray chamber showed zero pitting after 500 hours.
用户
James Wilson
United Kingdom
2026-01-07
Excellent 316L Marine Grade Plates for Offshore Platform
Ordered 18 tons of 316L marine grade stainless steel plate (8mm thickness, 2000mm width, 2B finish) for our North Sea offshore platform refurbishment. Material test certificates confirmed carbon content at 0.025% and PREN value of 25.2, exceeding ASTM A240 requirements. Surface quality was outstanding with Ra values below 0.4 micrometers. Delivery completed in 11 days to Aberdeen port. Welding with ER316L filler proceeded smoothly with zero sensitization issues. This supplier has become our preferred source for marine applications.

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
$1150 1-49 吨 基准价
$1126 50-99 吨 2.1% 优惠
$1100 ≥100 吨 4.3% 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$ 1,150.00
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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