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Standard

Avoidance of Hydrogen Embrittlement of Steel

2019-02-27
CURRENT
USCAR5-5
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel and defines the relief procedures required to minimize the risk of hydrogen embrittlement. It is intended to control the process. Hydrogen embrittlement of steel, which can cause brittle fractures under stress, occurs as a result of the absorption of hydrogen during cleaning, phosphate coating and plating processes. The susceptibility to hydrogen embrittlement increases with increasing stress (internal or externally applied stress) and increasing material strength. Hardness readings in this specification are in Vickers scale. SAE J417 should be referred to for conversion to other scales.
Standard

Test Procedures for Evaluating Bolt-Load Retention of Magnesium Alloy

2018-11-02
WIP
USCAR35-1
1.1 A bolt-load retention (BLR) test is a practical test to determine the bolt load of a fastener joint with time and at given temperatures. There are three types of BLR tests described in this standard, namely general-purpose test, design-purpose test, and screening material test. A general-purpose BLR test may be used for screening materials, while a design-purpose BLR test is usually used to verify the BLR behavior of a specific joint. The screening material test is an example of the general-purpose test for typical automotive applications. 1.2 The test procedures provides guidance in the following areas: (a) BLR sample and test fixture, (b) test fastener, washer and nut, (c) bolt-load measurement and data acquisition, (d) heating device, (e) initial loading, (f) baseline test, and (g) instrumentation of strain gages and calibration (see Appendix B).
Standard

AVOIDANCE OF HYDROGEN EMBRITTLEMENT OF STEEL

2008-06-01
HISTORICAL
USCAR5-4
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel and define the relief procedures required to minimize the risk of hydrogen embrittlement. It is intended to control the process.
Standard

AVOIDANCE OF HYDROGEN EMBRITTLEMENT OF STEEL

2008-06-01
HISTORICAL
USCAR5-3
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel and define the relief procedures required to minimize the risk of hydrogen embrittlement. It is intended to control the process. Hydrogen embrittlement of steel, which can cause brittle fractures under stress, occurs as a result of the absorption of hydrogen during cleaning, phosphate coating and plating processes. The susceptibility to hydrogen embrittlement increases with increasing stress (internal or externally applied stress) and increasing material strength. Hardness readings in this specification are in Vickers scale. SAE J417 should be referred to for conversion to other scales.
Standard

TEST PROCEDURES FOR EVALUATING BOLT-LOAD RETENTION OF MAGNESIUM ALLOYS

2007-10-08
CURRENT
USCAR35
A bolt-load retention (BLR) test is a practical test to determine the bolt load of a fastener joint with time and at given temperatures. There are three types of BLR tests described in this standard, namely general-purpose test, design-purpose test, and screening material test. A general-purpose BLR test may be used for screening materials, while a design-purpose BLR test is usually used to verify the BLR behavior of a specific joint. The screening material test is an example of the general-purpose test for typical automotive applications.
Standard

NEW FINISH DEVELOPMENT DOCUMENT

2007-03-13
CURRENT
USCAR32
This standard lists variables that shall be investigated and reported as an initial investigation into new or revised surface finishes intended for use on fasteners. This standard provides instruction for producing a final report that will be used to determine if further investigation of a surface finish is justified. Further investigation may include tests and evaluations specific to an individual OEM prior to introduction/approval of the surface finish. The final report shall include the results, observations, and conclusions for all of the variables. The final report may be made up of several individual reports covering each variable. In all cases the laboratory performing the test, the test date and the report approver shall be included in the final report.
Standard

Avoidance of Hydrogen Embrittlement of Steel

2007-03-01
HISTORICAL
USCAR5-2
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel and define the relief procedures required to minimize the risk of hydrogen embrittlement. It is intended to control the process. 1.1 Hydrogen embrittlement of steel, which can cause brittle fractures under stress, occurs as a result of the absorption of hydrogen during cleaning, phosphate coating and plating processes. The susceptibility to hydrogen embrittlement increases with increasing stress (internal or externally applied stress) and increasing material strength. 1.2 Hardness readings in this specification are in Vickers scale. SAE J417 should be referred to for conversion to other scales. NOTE 1: All references to temperatures relate to part core temperature and not the indicated oven air temperature. Statistical data of verifications in temperature at the center of the oven load and oven temperature shall be established to develop the oven profile.
Standard

Initiator Technical Requirements and Validation

2005-06-06
CURRENT
USCAR28
This specification establishes the design, performance, and validation requirements for the initiator assembly used in airbag modules, seatbelt pretensioners and/or any other Electro-Explosive Devices (EED).
Standard

Avoidance of Hydrogen Embrittlement of Steel

2002-08-22
HISTORICAL
USCAR5-1
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel. It also defines the relief procedures required to minimize the risk of hydrogen embrittlement. SAE/USCAR-5 is intended to control the process.
Standard

Avoidance of Hydrogen Embrittlement of Steel

1997-11-01
HISTORICAL
USCAR5
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel and defines the relief procedures required to minimize the risk of hydrogen embrittlement. It is intended to control the process. Hydrogen embrittlement of steel, which can cause brittle fractures under stress, occurs as a result of the absorption of hydrogen during cleaning, phosphate coating and plating processes. The susceptibility to hydrogen embrittlement increases with increasing stress (internal or externally applied stress) and increasing material strength. Hardness readings in this specification are in Vickers scale. SAE J417 should be referred to for conversion to other scales.
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