PFI Standard ES-43-R2005 奥氏体不锈钢和镍合金材料的保护标准 Standard For Protection Of Austenitic Stainless Steel And Nickel Alloy Materials

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PFI Standard ES-43

(Reaffirmed February 2005)

Standard for Protection of Austenitic Stainless Steel and

Nickel Alloy Materials

1. Scope

1.1 This standard describes recommended methods

for the handling, storage and fabrication of

austenitic stainless steel and nickel alloy

materials to avoid surface contamination. This

standard applies during handling, receiving and

storage of raw materials and during all phases of

fabrication, inspection and shipment.

2. Handling & Storage

2.1 Austenitic stainless steel and nickel alloy

material shall be handled with nylon slings or

equipment protected with a non-contaminating

buffer material.

2.2 When receiving these alloys, a visual

examination of both internal and external

surfaces shall be conducted to detect existing

contamination or gouges caused by contact with

contaminating material.

2.3 Fittings shall be stored on pallets or shelving

constructed of non-contaminating material.

2.4 Storage areas for these materials shall be

separate from the areas where carbon steel

material is stored.

2.5 If stainless steel material is stored outdoors in a

salt air environment, the material shall be

covered with a water repellent sheet.

2.6 Carbon steel strapping shall only be used if a

durable, non-contaminating material is used to

isolate the strapping from contact with the

stainless steel or nickel alloy. Suggested neutral

material includes clean wood, cardboard, cloth,

paper and stainless steel buffers.

2.7 Walking on the austenitic stainless steel or

nickel alloy material shall be avoided.

3. Fabrication

3.1 Surfaces of tools and equipment containing

carbon steel, zinc, copper or their alloys which

come into contact with austenitic or nickel alloy

materials shall be covered with a non-

contaminating material.

3.2 Tools such as grinding wheels and wire brushes

previously used on carbon steel shall not be used

on austenitic stainless steel or nickel alloy

materials.

3.3 Grinding discs, abrasive discs and belts shall be

made of resin-bonded alumina, silicon carbide or

zirconium carbide. Sulphurized compounds

shall not be used as a bonding material.

3.4 Only 300 series stainless steel brushes shall be

used on austenitic and nickel alloys.

3.5 All material removal and cleaning tools shall be

marked to identify that they are to be used on

austenitic and nickel alloy materials only.

Marking shall be visible while a tool is in use.

3.6 Areas used for fabrication of austenitic and

nickel alloy materials shall be separated from

carbon steel areas by methods suitable to prevent

contamination by carbon steel shavings, grinding

dust, and zinc dust from painting operations.

3.7 Where tape is used for back purging, the tape

shall use an adhesive with a water soluble

chloride content not exceeding 50 ppm.

3.8 After pressure-sensitive and adhesive-backed

tapes are no longer required, they shall be

removed along with any residual adhesive using

a suitable solvent or abrasive.

3.9 When hydrostatic testing is required, the test

fluid shall not contain more than 50 ppm

chlorides. Piping shall be properly drained

following testing.

3.10 Cutting fluids or oils shall be low halogen, low

sulphur and shall be completely removed from

all surfaces prior to any hot forming, welding, or

heat treating operations.

4. Shipping

4.1 Packing materials and shipping protectors such

as PVC caps, plugs, adhesive tapes shall be new

and not contain substances that could be harmful

to these alloys.

This copy belongs to 1010607

PFI Standard ES-43

(Reaffirmed February 2005)

4.2 Any marking or color coding shall be done with

materials having a water soluble chloride content

not exceeding 50 ppm, measured after the

marking material has dried.

4.3 If identification tags are used, the tags and

attachment devices shall be made of a non-

contaminating material.

4.4 Austenitic stainless steel and nickel alloys shall

be shipped in a manner that will minimize the

risk of the material becoming contaminated.

Shipping these alloys on the same load as carbon

steel material should be avoided. If common

loads are to be used, care must be taken to

ensure segregation by use of wood bracing or

other non-contaminating material.

This copy belongs to 1010607

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标签： #不锈钢 #奥氏体 #钢

摘要：

本页面详细介绍 PFI Standard ES-43-R2005《奥氏体不锈钢和镍合金材料的保护标准》，该标准由管道制造商协会（PFI）制定，旨在为奥氏体不锈钢及镍合金材料在制造、运输、存储及安装过程中提供全面防护指南，防止表面污染、晶间腐蚀及应力腐蚀开裂等常见问题。标准重点涵盖了材料在加工前后的清洁处理、钝化措施、避免铁素体污染的保护方法，以及针对焊接热影响区的特殊保护要求，确保材料在高温、高压或腐蚀性环境中的长期可靠性。内容适用于石油化工、核电、海洋工程及食品加工等对材料耐腐蚀性能要求苛刻的

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PFI Standard ES-43-R2005 奥氏体不锈钢和镍合金材料的保护标准 Standard For Protection Of Austenitic Stainless Steel And Nickel Alloy Materials

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