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20mm船用钢板 - 用于造船的ASTM A131 A/B/D/E级船用钢板

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
$595 1-49 吨 基准价
$570 50-99 吨 4.2% 优惠
$555 ≥100 吨 6.7% 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$ 595.00
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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:
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产品详情

20mm船板技术规范

属性参数描述
产品名称20mm 船板用于造船的船用级结构钢板
材质等级AH32, DH32, EH32, AH36, DH36, EH36符合船级社标准的国际船用钢等级
标准符合性ASTM A131, EN 10025-2, GB/T 712符合主要国际造船标准
厚度20mm船体建造的标准厚度
宽度范围1500 - 3500mm可用于造船的宽度选项
长度范围6000 - 18000mm提供标准及定制长度
碳 (C)≤0.18%控制碳含量以确保焊接性
锰 (Mn)0.90-1.60%增强强度和韧性
硅 (Si)0.10-0.50%脱氧剂和强化元素
磷 (P)≤0.035%控制含量以改善延展性
硫 (S)≤0.035%低硫含量以提高焊接性
抗拉强度440-590 MPa符合 ASTM A131 的最低抗拉强度
屈服强度≥315 MPaAH32/DH32 级的最低屈服强度
延伸率≥22%50mm 标距长度下的延展性
冲击功≥34J at -20°C (DH32), ≥34J at -40°C (EH32)适用于低温环境的夏比 V 型缺口冲击韧性
表面处理热轧、喷丸、涂漆适用于海洋应用的表面处理选项
应用船体、甲板、舱壁、海上平台典型的造船和海洋结构应用
认证ABS, DNV-GL, LR, BV, CCS, NK可提供船级社认证
包装钢带捆扎、防水罩、木托盘船用钢标准出口包装
MOQ10 tons最小起订量

20mm船用钢板 - 用于造船的ASTM A131 A/B/D/E级船用钢板

20mm 船板是一种专为船舶建造而设计的关键结构部件,具有优异的强度重量比和在恶劣盐水环境中的卓越耐腐蚀性。这种船用级钢板按照 ASTM A131/A131M 标准制造,服务于需要认证材料的船厂、海上平台制造商和海军建造设施,这些材料能够承受极端海洋条件,同时在数十年的使用寿命中保持结构完整性。

20mm 船板供应商

什么是 20mm 船板?

20mm 船板是符合 ASTM A131/A131M-14 规范的热轧结构钢板,专为船体建造、甲板铺板和远洋船舶的关键承载应用而设计。这种船用级材料按照夏比 V 型缺口要求经过 -20°C 的严格冲击测试,确保在零度以下的海洋环境中具有可靠性能,而传统结构钢在这种环境中会表现出脆性断裂。

20mm 船板制造商

20mm 船板技术规格

ASTM A131 A 级的最小屈服强度为 235 MPa,抗拉强度范围为 400-520 MPa,而 D 级通过正火轧制工艺提供增强的韧性,在 -20°C 时达到最小 34 焦耳的冲击能量。化学成分将 A 级的碳含量限制在最高 0.21%,D 级为 0.18%,锰含量控制在 0.80-1.60% 之间以优化焊接性。20mm 厚度分类属于 6-50mm 的标准板材范围,通过控制轧制制造,以实现细晶微观结构和横截面上均匀的机械性能。

为什么选择我们的船用20mm船板

我们的钢厂直供20mm船板按照ASTM A435标准进行100%超声波检测,以探测超过3mm等效平底孔尺寸的内部不连续性,确保关键结构区域零缺陷。每张钢板均附有Lloyd's Register、DNV-GL或ABS的第三方船级社认证,并随附材料测试报告,记录可追溯至炉号的化学成分分析、拉伸性能和冲击试验结果。我们保持A、B、D和E级钢板的充足库存,宽度可达3,500mm,长度可达18,000mm,为原型制造或紧急维修项目实现无需最低起订量限制的高性价比采购。

常见问题

最小起订量(MOQ)是多少?

我们可承接从单张钢板起的订单,服务于维修船厂和科研机构,无最低吨位要求。批量采购者可享受从10公吨起的阶梯价格,而超过100吨的船厂合同可享受钢厂直供价格以及与建造节点相匹配的定制交付计划。

你们提供材料测试证书吗?

每批20mm船板发货均包含EN 10204 Type 3.1钢厂测试证书,记录按炉号分析的化学成分、室温拉伸性能以及在规定试验温度下的夏比V型缺口冲击值。Lloyd's Register、DNV-GL、ABS或其他认可机构的船级社证书可应要求提供,数字副本可通过我们的在线门户获取,以便在检验验船期间即时验证。

典型交货时间是多少?

20mm 厚度的 A 级和 D 级库存板材可在 5-7 个工作日内从我方战略性布局、服务于主要造船区域的配送中心发货。E 级或 AH32 等高强度变体的定制轧制需要 25-35 天的钢厂交货周期,关键路径项目可提供 15 天的加急生产,但需支付加急排产费用,且最低起订量为 50 吨。

中国 20mm 船板

你们能按定制尺寸切割吗?

我们的 CNC 等离子和氧燃气切割设备可将 20mm 船板加工至线性尺寸 ±3mm 的公差,最大长度可达 12 米,并具备按 AWS D1.1 规范进行单 V 或双 V 坡口焊接准备的能力。嵌套切割优化可将复杂船体板几何形状的材料浪费降至 8% 以下,同时保持适合直接焊接而无需二次机加工的边缘质量。

获取 20mm 船板的竞争性报价

请通过我们的在线询价系统提交您的技术规格、所需的船级社认证以及交货地点,以获取 ASTM A131 20mm 船板的详细报价。我们的船用钢材专家将在 4 个工作小时内回复,提供钢厂核实的价格、材料可用性确认,以及根据您船厂的建造计划和预算参数量身定制的物流解决方案。

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
2025-09-21
Perfect Grade B Plates for Icebreaker Reinforcement
Ordered 32 tons of 20mm ASTM A131 Grade B for icebreaker hull reinforcement project on Lake Superior. Impact testing at -30°C showed 40J average, exceeding our cold climate requirements. Plates supplied in 3200mm x 12000mm dimensions minimized weld seams in ice belt zones. Mill certificates documented sulfur content at 0.008%, well below 0.035% maximum ensuring excellent through-thickness properties. Delivered to Thunder Bay terminal in 13 days with proper winter packaging. Material performed flawlessly during -25°C winter fabrication conditions.
用户
Carlos Silva
Brazil
2025-10-08
Acceptable Quality After Initial Documentation Delay
Purchased 18 tons of 20mm Grade A for offshore supply vessel construction. Material quality good with carbon content 0.19% and yield strength 248 MPa per certificates. Initial shipment missing Portuguese translation of DNV-GL certificates causing 5-day customs delay at Santos port. Supplier quickly provided certified translations and compensated demurrage charges. Physical inspection showed uniform 20.4mm thickness across all plates. Once documentation resolved, material performed well in our fabrication process meeting Brazilian Navy specifications.
用户
William Taylor
Australia
2025-10-26
Solid Performance for Patrol Boat Refit
Ordered 6 tons of 20mm Grade D for Australian Navy patrol boat hull plate replacement. Material met all ASTM A131 requirements with tensile strength at 512 MPa and impact energy 36J at -20°C. Minor surface scratches on 3 plates required grinding before coating application, adding 4 hours labor. Supplier promptly issued credit note for affected material. Overall quality acceptable for defense project requirements. Delivery to Perth completed in 16 days including customs clearance.
用户
Ahmed Al-Hassan
UAE
2025-11-13
Reliable ABS-Certified Plates for Tugboat Fleet
Third order for our tugboat construction program - 22 tons of 20mm Grade A/B combination. ABS certification package included heat-specific impact test data and PMI verification results. Compared quotes from 5 regional suppliers; this provider offered best combination of price and 100% ultrasonic testing coverage per ASTM A435. Plates arrived at Jebel Ali port in 11 days with proper export documentation. Consistent quality across multiple heats enables our welders to maintain qualified procedures without adjustments.
用户
Hans Mueller
Germany
2025-11-30
Premium Grade D Material for Research Vessel Project
Supplied 8.5 tons of 20mm ASTM A131 Grade D for specialized oceanographic research vessel construction. Chemical composition analysis showed manganese at 1.42% optimizing our submerged arc welding parameters. Grain size ASTM E112 number 8 confirmed fine microstructure from controlled rolling process. Plates cut to 47 complex hull panel geometries with 7.2% material waste, excellent for our tight budget. GL certification and full mill test reports facilitated smooth approval from German maritime authority.
用户
Michael Torres
United States
2025-12-08
Good Value Grade A Plate for Barge Construction
Ordered 45 tons of 20mm Grade A ship plate for inland barge deck construction. Pricing was 8% lower than our regular supplier for comparable ABS-certified material. Tensile properties averaged 445 MPa well within 400-520 MPa specification range. Delivery took 19 days, slightly longer than quoted 15 days, but material quality justified the wait. Surface finish required minimal preparation before welding. Would order again for non-critical applications where Grade D toughness isn't mandatory.
用户
James Wilson
United Kingdom
2025-12-23
Outstanding Quality for North Sea Platform Repair
Purchased 12 tons of 20mm ASTM A131 Grade E for emergency topside module repairs on our North Sea platform. Yield strength tested at 355 MPa with Charpy values of 42J at -40°C per EN 10204 3.1 certificates. Lloyd's Register approval documentation provided within 24 hours of inquiry. CNC cut panels to our nested drawings with ±2mm tolerance, reducing onsite fitting time by 40%. Delivered to Aberdeen in 14 days including custom beveling for our welding procedures.
用户
Robert Chen
Singapore
2026-01-07
Excellent ASTM A131 Grade D Plates for Container Ship Hull
Ordered 28 tons of 20mm ship plate Grade D for our 180m container vessel hull construction. Material certificates confirmed carbon at 0.16% and impact energy 38J at -20°C, exceeding ASTM A131 minimums. DNV-GL certification included with full traceability documentation. Ultrasonic testing reports showed zero defects above 2mm threshold. Plates arrived in 6 days to our Singapore yard. This supplier consistently delivers mill-certified material that passes classification society surveys without issues.

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
$595 1-49 吨 基准价
$570 50-99 吨 4.2% 优惠
$555 ≥100 吨 6.7% 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$ 595.00
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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