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行业采购解决方案 · 审核日期 31 July 2026

Metals for Shipbuilding

Ship metal selection follows vessel class, flag and class rules, structural zone, seawater exposure, cargo, temperature, welding procedure, fire safety, and inspection—not a universal marine-grade list.

01 服役环境02 系统要求03 规范与文件04 检验与交付

首先确认

整个项目不存在一份通用的金属材料规范

应先把项目拆分为不同系统，记录各自服役环境和适用规范，再选择相互兼容的材料、产品标准、加工路线、防护体系与检验计划。

01服役环境

Immersed, splash, weather-deck, ballast, cargo, and machinery-space exposure

02服役环境

Cyclic wave loading, vibration, fatigue, impact, low temperature, and welding restraint

03服役环境

Seawater chlorides, cargo chemistry, exhaust heat, condensation, and cleaning chemicals

系统选材图

按项目系统选择材料与产品

系统选材因素与备选方案经审核的起始方案
Hull and deck structure
  • Use class-approved shipbuilding grades with required toughness, thickness, delivery condition, and traceability.
  • Plate acceptance and welding follow the classification society rules and approved vessel design.
Carbon steel plateCarbon and structural steel
Piping and seawater systems
  • Define fluid, pressure, temperature, velocity, chloride level, stagnant zones, and galvanic interfaces.
  • Pipe, fittings, welding consumables, NDE, and pressure tests require a common class-approved specification.
Stainless pipeCopper alloys
Cargo, service, and ballast tanks
  • Select material and coating around cargo compatibility, cleaning, access, drainage, and inspection.
  • Stainless selection requires chloride and stress-corrosion assessment; carbon steel requires a complete coating and corrosion-control plan.
316LCarbon steel plate
Exhaust and high-temperature zones
  • Confirm operating and transient temperatures, condensate chemistry, cyclic oxidation, and support loads.
  • High-temperature grade selection remains subject to the exhaust-system design and product standard.
321347
Accommodation, electrical, and outfitting
  • Coordinate fire safety, weight, finish, electrical continuity, condensation, and cleaning.
  • Aluminum and coated products require isolation from dissimilar metals in wet zones.
Aluminum sheet & plateGalvanized coil

项目控制

标准、认证与文件

  • Applicable classification society rules and IACS Unified Requirements
  • SOLAS, flag-state, and vessel-specific fire and safety requirements
  • Approved material list, welding procedures, welder qualifications, and NDE plan
  • Coating technical file, corrosion-control drawings, and cathodic-protection interfaces
  • Class certificates, mill test reports, traceability, and construction records

制造与物流

需要控制的供货接口

  • 制造图、焊接、热处理、涂层与修补程序
  • 检验见证点、试验方法、验收准则与文件批准
  • 下料和组装全程标识、防护、包装与集运
  • 目的地要求、现场储存、安装接口与交付顺序

风险清单

常见采购风险

01

Buying nominally similar plate without class approval, toughness, thickness, or delivery-condition compliance

02

Galvanic couples and crevices created by mixed metals, fasteners, insulation, or trapped seawater

03

Incomplete weld, NDE, coating, or class witness requirements at purchase-order stage

04

Loss of heat and plate traceability during nesting, cutting, fabrication, or consolidation

可比报价

结构化询价清单

01询价输入

Project location, service environment, design life, and governing codes

02询价输入

System or component, material grade, and governing product specification

03询价输入

Dimensions, tolerance, quantity, and delivery lot sequence

04询价输入

Condition, finish, coating, corrosion allowance, or cathodic-protection interface

05询价输入

Welding procedure, fabrication, heat treatment, and qualification requirements

06询价输入

Inspection and test plan, acceptance criteria, certificates, and third-party hold points

07询价输入

Marking, traceability, packing, preservation, and destination

08询价输入

Required delivery date, shipment terms, and approved-vendor constraints

继续查阅

materialCarbon & Structural Steel

Carbon and structural steels cover high-volume engineering materials supplied under chemistry-, strength-, product-, and application-based specifications. A familiar grade name never replaces the governing product standard and delivery condition.

materialStainless Steel

Stainless steels are iron-based alloys whose chromium supports a protective passive film. Family, alloy content, product specification, condition, fabrication, surface state, and service environment all affect selection.

materialAluminum & Aluminum Alloys

Aluminum alloys combine low density with corrosion resistance, conductivity, formability, and a broad range of strength. Alloy series, product form, temper, thickness, joining route, and exposure must be specified together.

productStainless Steel Pipe

A specification guide to seamless and welded stainless pipe for pressure and process service, with schedule, dimensions, heat treatment, testing, and end requirements.

证据

来源与审核

项目工程文件和当前适用规范优先于本页的一般选材建议。

01
International Convention for the Safety of Life at Sea — Ship Construction

International Maritime Organization · SOLAS chapters II-1 and II-2 overview, reviewed July 2026

02
Unified Requirements

International Association of Classification Societies · Current technical requirements index, reviewed July 2026

03
The Stainless Steel Family

worldstainless · Industry technical guide, reviewed July 2026

从中国采购项目材料

建立可追溯的 Shipbuilding 供货包

请提供设计依据、系统清单、技术规范、数量、检验计划、目的地与交付计划。

讨论项目