SAE AMS 5650G-2018

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AEROSPACE

MATERIAL SPECIFICATION

AMS5650™

REV. G

Issued 1952-11

Reaffirmed 2012-04

Revised 2018-03

Superseding AMS5650F

Steel, Corrosion and Heat-Resistant, Bars, Wire, Forgings, Mechanical Tubing, and Rings

23Cr - 13.5Ni (309S)

Solution Heat Treated

(Composition similar to UNS S30908)

RATIONALE

AMS5650G revises Title, Composition analysis standards (3.1) Reports (4.4) and Identification (5.2.1), and results from a

Five-Year Review and update of this specification.

1. SCOPE

1.1 Form

This specification covers a corrosion and heat-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash

welded rings, and stock for forging or flash welded rings.

1.2 Application

These products have been typically used for parts requiring corrosion and heat resistance and where such parts may require

welding during fabrication, and for parts requiring oxidation resistance up to 2000 °F (1093 °C), but usage is not limited to

such applications.

2. APPLICABLE DOCUMENTS

The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the

extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is

specified. When the referenced document has been cancelled and no superseding document has been specified, the last

published issue of that document shall apply.

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SAE INTERNATIONAL AMS5650™G Page 2 of 7

2.1 SAE Publications

Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA

and Canada) or +1 724-776-4970 (outside USA), www.sae.org.

AMS2241 Tolerances, Corrosion and Heat-Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Bars and Wire

AMS2243 Tolerances, Corrosion and Heat-Resistant Steel Tubing

AMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other

Highly-Alloyed Steels, and Iron Alloys

AMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought

Products and Forging Stock

AMS2374 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steel and Alloy Forgings

AMS2806 Identification, Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steels and Corrosion and

Heat-Resistant Steels and Alloys

AMS2808 Identification, Forgings

AMS7490 Rings, Flash Welded, Corrosion and Heat-Resistant Austenitic Steels, Austenitic-Type Iron, Nickel, or

Cobalt Alloys, or Precipitation Hardenable Alloys

ARP1917 Clarification of Terms Used in Aerospace Metals Specifications

2.2 ASTM Publications

Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel:

610-832-9585, www.astm.org.

ASTM A262 Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

ASTM A370 Mechanical Testing of Steel Products

ASTM A751 Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

ASTM E140 Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell

Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness

3. TECHNICAL REQUIREMENTS

3.1 Composition

Shall conform to the percentages by weight shown in Table 1, determined in accordance with ASTM A751 or by other

analytical methods acceptable to purchaser.

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SAE INTERNATIONAL AMS5650™G Page 3 of 7

Table 1 - Composition

Element

Min

Max

Carbon

Manganese

Silicon

Phosphorus

Sulfur

Chromium

Nickel

Molybdenum

Copper

22.00

12.00

0.08

2.00

1.00

0.040

0.030

24.00

15.00

0.75

3.1.1 Check Analysis

Composition variations shall meet the applicable requirements of AMS2248.

3.2 Condition

The product shall be supplied in the following condition:

3.2.1 Bars, Wire, Forgings, Mechanical Tubing, and Flash Welded Rings

Solution heat treated.

3.2.1.1 Bars and Wire

3.2.1.1.1 All hexagons, other bars 2.75 inches (69.8 mm) and under in nominal diameter or least distance between

parallel sides, and wire shall be cold finished after solution heat treatment.

3.2.1.1.2 Bars, other than hexagons, over 2.75 inches (69.8 mm) in nominal diameter or least distance between parallel

sides, shall be hot finished, solution heat treated, and descaled., except round bars shall be ground or turned.

3.2.1.2 Mechanical Tubing

Shall be cold finished after solution heat treatment.

3.2.1.3 Flash Welded Rings

Shall not be supplied unless specified or permitted on purchaser’s part drawing. When supplied, rings shall be manufactured

in accordance with AMS7490.

3.2.2 Stock for Forging or Flash Welded Rings

As ordered by the forging or flash welded ring manufacturer.

3.3 Properties

The product shall conform to the following requirements; hardness and tensile testing shall be performed in accordance

with ASTM A370.

3.3.1 Tensile Properties

Wire shall have tensile strength not higher than 125 ksi (862 MPa).

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摘要：

SAE AMS 5650G-2018 是一项由国际自动机工程师学会（SAE International）发布的航空航天材料规范，专门针对耐腐蚀钢棒材、线材、锻件及管材等半成品的化学成分、机械性能、热处理工艺及检验要求进行严格规定。该标准适用于 15-5PH 沉淀硬化不锈钢（马氏体不锈钢），常用于制造飞机结构件、紧固件、液压系统部件以及需要高强度与耐腐蚀性兼备的关键航空航天零件。通过明确AMS 5650G-2018的更新版本要求，工程师和采购人员可以确保所选材料符合当前航空航天工业的质量与安全标准

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