SAE J434-2017

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__________________________________________________________________________________________________________________________________________
SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely
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suggestions.
Copyright © 2017 SAE International
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying,
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SAE values your input. To provide feedback on this
Technical Report, please visit
http://standards.sae.org/J434_201712
SURFACE VEHICLE
INFORMATION REPORT
J434™
DEC2017
Issued 1956-09
Revised 2004-02
Stabilized 2017-12
Superseding J434 FEB2004
Automotive Ductile (Nodular) Iron Castings
RATIONALE
The technical report covers technology, products, or processes which are mature and not likely to change in the foreseeable
future.
STABILIZED NOTICE
This document has been declared "Stabilized" by the SAE Metals Technical Executive Steering Committee and will no
longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability
of technical requirements. Newer technology may exist.
Downloaded from SAE International by Univ of Toronto, Tuesday, January 04, 2022
1.
Scope
This SAE standard covers the minimum mechanical properties measured on separately cast test pieces
of varying thickness and microstructural requirements for ductile iron castings used in automotive and
allied industries. Castings may be specified in the as-cast or heat-treated condition. If castings are heat-
treated, prior approval from the customer is required.
The appendix provides general information on chemical composition, microstructure and casting
mechanical properties, as well as other information for particular service conditions.
In this standard SI units are primary and in-lb units are derived.
2.
References
2.1
Applicable Publications
The following publications form a part of the specification to the extent specified herein. Unless otherwise
indicated, the latest revision of SAE publications shall apply
2.1.1 ASTM INTERNATIONAL PUBLICATIONS
Available from ASTM INTERNATIONAL, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959
ASTM E10 –-Standard Test Method for Brinell Hardness of Metallic Materials
ASTM E23—Standard Test Methods for Notched Bar Impact Testing of Metallic Materials
ASTM E111—Standard Test Method for Young's Modulus, Tangent Modulus and Chord Modulus
ASTM A247—Standard Test Method for Evaluation the Microstructure of Graphite in Iron Castings
ASTM A536—Standard Specification for Ductile Iron Castings
STP-455—Gray, Ductile, and Malleable Iron Castings Current Capabilities (out-of-print)
_________________________________________________________________________________________________
J434™ DEC2017
Page 1 of 11
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2.1.2 OTHER PUBLICATION
Metals Handbook, Vol. 1, 2, and 5, 8th Edition, American Society for Metals, Metals Park, OH
Gray and Ductile Iron Castings Handbook, Gray and Ductile Iron Founder Society, Cleveland, OH
H. D. Angus, Physical Engineering Properties of Cast Iron, British Cast Iron Research Association,
Birmingham, England
3.
Grades
The grades, mechanical properties and metallurgical description are shown in Table 1.
TABLE 1—GRADES OF DUCTILE IRON
Tensile
Strength
Yield
Strength
%
Elongation
Grade
Typical
Hardness
Range (MPa)
Description
Relative
Wall
Thickness MPa ksi MPa ksi
D400
(D4018)
143-170 HBW
(1402-1667)
or as agreed
Ferrite <=20mm
>20mm-<=40mm
>40mm-<=60mm
400 58 275
260
250
40 18
D450
(D4512)
156-217 HBW
(1530-2128)
or as agreed
Ferrite-
Pearlite
<=20mm
>20mm-<=40mm
>40mm-<=60mm
450 65 310
295
285
45 12
D500
(D5006)
187-229 HBW
(1834-2246)
or as agreed
Ferrite-
Pearlite
<=20mm
>20mm-<=40mm
>40mm-<=60mm
500 73 345
330
320
50 6
D550
(D5504)
217-269 HBW
(2128-2638)
or as agreed
Pearlite-
Ferrite
<=20mm
>20mm-<=40mm
>40mm-<=60mm
550 80 380
365
350
55 4
D700
(D7003)
241-302 HBW
(2363-2961)
or as agreed
Pearlite <=20mm
>20mm-<=40mm
>40mm-<=60mm
700 102 450
435
425
65 3
D800
255- 311 HBW
(2501 – 3050)
or as agreed
Pearlite or
Tempered
Martensite
<=20mm
>20mm-<=40mm
>40mm-<=60mm
800
116
480
465
455
70
2
DQ&T Range Specified
By Agreement
Tempered
Martensite
A wide variety of properties are possible.
Minimum properties are specified by agreement
Between manufacturer and purchaser.
NOTE—Please refer to ISO 6506 /ASTM E 10 for Brinell Hardness of Metallic Materials Casting
properties and microstructure may vary due to chemistry, section size/cooling rate and other
parameters. It is desired that separately cast test bars reflect properties of the castings they
represent. Casting process for separately cast test pieces shall be agreed upon between
manufacturer and purchaser. Refer to ASTM A 536.
_________________________________________________________________________________________________
J434™ DEC2017
Page 2 of 11
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摘要:

SAE J434-2017 是美国汽车工程师协会(SAE)发布的一项关于汽车用可锻铸铁铸件的标准规范,最新修订于2017年。该标准详细规定了适用于汽车零部件的可锻铸铁材料等级、化学成分、力学性能、热处理要求及试验方法,主要用于确保铸件在道路车辆中的可靠性、耐久性和安全性能。SAE J434-2017覆盖了包括铁素体、珠光体等多种组织类型在内的铸件牌号,适用于制动系统部件、底盘零件、转向机构及悬挂系统等关键应用场景。遵循该标准有助于制造商实现批量生产中的质量一致性,并为全球汽车供应链中的材料互换与

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作者:Carl 分类:国外协会 价格:15星币 属性:12 页 大小:3.42MB 格式:PDF 时间:2024-09-06

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