SAE AMS 5659-H1100-2022

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SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and

suggestions.

recording, or otherwise, without the prior written permission of SAE.

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For more information on this standard, visit

https://www.sae.org/standards/content/AMS5659/H1100/

AEROSPACE MATERIAL

SPECIFICATION

AMS5659™/H1100

Issued 2022-09

Steel, Corrosion-Resistant, Bars, Wire, Forgings, Rings, and Extrusions

15Cr - 4.5Ni - 0.30Cb (Nb) - 3.5Cu

Solution and Precipitation Heat Treated (H1100)

(Composition similar to UNS S15500)

RATIONALE

AMS5659/H1100 is a new specification for the purchase of corrosion-resistant steel product in the solution and precipitation

heat treated (H1100) condition.

1. SCOPE

1.1 Form

This specification covers a corrosion-resistant steel product 12 inches (305 mm) and under in nominal diameter, thickness

or for hexagons, least distance between parallel sides, and having a maximum cross-sectional area of 144 square inches

(930 cm2) in the solution and precipitation heat treated (H1100)

condition.

1.1.1 The aged product may be supplied directly by a producer or by another entity performing the functions of a producer

as defined in AS6279. The latter can be accomplished by precipitation heat treatment of solution treated material

previously certified to AMS5659. The entity assuming responsibility for the aging operation is designated the

producer of AMS5659/H1100.

1.2 Application

These products have been used typically for parts requiring corrosion resistance and high strength up to 600 °F (316 °C)

with good ductility and strength in the transverse direction in large section sizes, but usage is not limited to such applications

(see 8.1).

1.3 Classification

Melting practice classification shall be in accordance with AMS5659.

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.

SAE INTERNATIONAL AMS5659™/H1100 Page 2 of 6

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

AMS2759/3 Heat Treatment, Precipitation-Hardening Corrosion-resistant, Maraging, and Secondary Hardening Steel

Parts

AMS2761 Heat Treatment of Steel Raw Materials

AMS5659 Steel, Corrosion- Resistant, Bars, Wire, Forgings, Rings, and Extrusions, 15Cr - 4.5Ni - 0.30Cb (Nb) -

3.5Cu, Consumable Electrode Remelted, Solution Heat Treated, Precipitation Hardenable

AS6279 Standard Practice for Production, Distribution, and Procurement of Metal Stock

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 A370 Mechanical Testing of Steel Products

3. TECHNICAL REQUIREMENTS

3.1 Composition

Shall be in accordance with AMS5659.

3.2 Melting Practice

Shall be in accordance with AMS5659.

3.3 Condition

Shall be in accordance with AMS5659, and the following:

3.3.1 The product shall be supplied in the precipitation hardened (H1100) heat treat condition.

3.3.2 Bar shall not be cut from plate (see also 4.3.3).

3.4 Heat Treatment

Shall be in accordance with AMS5659 and the following:

3.4.1 Precipitation Heat Treatment

3.4.1.1 Shall be in accordance with the requirements applicable to either AMS2761 or AMS2759/3 at the producer’s

option, except acceptance testing and criteria shall be as specified in 3.5.3.1.

3.4.1.2 When product certified as AMS5659 (solution treated material) is precipitation heat treated to meet

AMS5659/H1100 by an entity other than the producer of the original product, the heat treatment source shall be

accredited by a recognized industry agency for stainless steel heat treatment acceptable to the purchaser.

SAE INTERNATIONAL AMS5659™/H1100 Page 3 of 6

3.4.2 Stress Relief Heat Treatment

3.4.2.1 A stress relief heat treatment after precipitation heat treatment is optional. When performed, stress relief shall be

accomplished by heating to 1000 °F ± 25 °F (538 °C ± 14 °C) and soaking for at least 1 hour plus 1 hour additional

for each inch (25 mm) of thickness or fraction thereof greater than 1 inch (25 mm). When load thermocouples are

used, the soaking time shall be at least 1 hour.

3.4.2.2 Stress relieving as above may be performed after straightening to meet dimensional tolerances of AMS2241

unless prohibited by purchaser or cognizant engineering organization (see 8.3) but must still meet all properties

(see 3.5).

3.5 Properties

All products shall conform to the following requirements:

3.5.1 Macrostructure

Shall be in accordance with AMS5659.

3.5.2 Microstructure

Shall be in accordance with AMS5659.

3.5.3 Tensile Properties

Shall be in accordance with the following:

3.5.3.1 Bars

Product, 12 inches (305 mm) and under in nominal diameter, thickness or for hexagons, least distance between parallel

sides, and having a maximum cross-sectional area of 144 square inches (930 cm2) shall be as shown in Table 1. Tensile

testing shall be performed in accordance with ASTM A370.

3.5.3.1.1 Unless otherwise specified, the strain rate shall be set at 0.005 in/in/min (0.005 mm/mm/min) and maintained

within a tolerance of ±0.002 in/in/min (0.002 mm/mm/min) through 0.2% offset yield strain. The strain rate after

yield may be increased to any value up to 0.5 in/in/min (or 0.5 mm/mm/min) or equivalent crosshead speed as

a function of gage length. The requirement for compliance becomes effective for material produced 1 year after

the publication date of this specification.

Table 1A - Tensile properties, inch/pound units

Condition

Sample

Orientation

Tensile Strength

ksi

Minimum

Yield Strength

at 0.2% Offset

ksi

Minimum Elongation in

2 Inches or 4D

Minimum Reduction

of Area

H1100

Longitudinal

140 - 170

115

Transverse

140 - 170

115

Note: Properties have been taken from the response to heat treatment requirements of AMS5659 and were not

independently substantiated using SAE AMS procedures.

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摘要：

SAE AMS 5659-H1100-2022 是由 SAE International 发布的最新版本航空航天材料规范，专为耐腐蚀与耐热钢棒材、线材、锻件及管材提供标准。该规范主要涵盖 H1100 热处理状态的马氏体不锈钢（通常对应 AISI 或 UNS S42000 系列），要求材料在 1100°F（约 593°C）回火后达到特定的力学性能与硬度范围。文档详细定义了化学成分、冶金质量、热处理工艺、拉伸强度及验收检验要求，适用于飞机结构件、紧固件及其他高应力严苛环境下的关键部件制造。此版本整合

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