H25 金属化学性能试验方法 标准查询与下载



共找到 841 条与 金属化学性能试验方法 相关的标准,共 57

1.1 These test methods, practices, and terminology cover definitions, reference methods, practices, and guides relating to the chemical analysis of steel, stainless steel, and related alloys. It includes both wet chemical and instrumental techniques. 1.2 Directions are provided for handling chemical requirements, product analyses, residual elements, and reference standards, and for the treatment and reporting of chemical analysis data. 1.3 These test methods, practices, and terminology apply only to those product standards which include these test methods, practices, and terminology, or parts thereof, as a requirement. 1.4 In cases of conflict, the product specification requirements shall take precedence over the requirements of these test methods, practices, and terminology. 1.5 Attention is directed to ISO/IEC8201;17025 when there may be a need for information on criteria for evaluation of testing laboratories. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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

ICS
77.040.30 (Chemical analysis of metals)
CCS
H25
发布
2014
实施

이 표준은 플라스틱상에 장식용 목적1)으로 한 전기 도금2)(이하 도금이라 한다.)의 유효면에 대하여규정한다.

Electroplated coatings on plastics materials for decorative purposes

ICS
25.220.40
CCS
H25
发布
2013-12-18
实施
2013/12/18

이 표준은 니켈합금의 입계부식에 대한 민감도를 결정하는 4가지 방법에 대하여 규정한다.이 방법은 민감도의 실험실 시험을 위한 것으로, 시험 조건과 실제 조건이 같지 않은 한 실제 사용환경에서는 입계부식과 직접적인 관계가 없을 수도 있다.시험방법은 다음 사항을 포함한다.― 방법 A: 황산 철(III) - 황산 시험― 방법 B: 구리-황산구리 - 16 % 황산 시험― 방법 C: 염산 시험― 방법 D: 질산 시험주어진 합금의 사용에 적합한 방법, 예민화 처리방법의 선택, 그밖에 어떤 평가의 판단 기준에 대한합금의 주문자와 제조자 사이에 협의가 있어야 한다. 지침에 따라 이 표준에서 정한 방법은 KS DISO 6207에 열거된 부식 환경에 사용되는 니켈합금에 대해 적용하여야 한다.

Nickel-based alloys — Determination of resistance to intergranular corrosion

ICS
77.060
CCS
H25
发布
2013-12-18
实施
2013/12/18

Evaluation of a.c. corrosion likelihood of buried pipelines applicable to cathodically protected pipelines

ICS
23.040.99;77.060
CCS
H25
发布
2013-09-30
实施
2013-09-30

Galvanic anodes for cathodic protection in seawater and saline mud

ICS
77.060
CCS
H25
发布
2013-06-30
实施
2013-06-30

Testing in a saturated atmosphere in the presence of sulfur dioxide

ICS
25.220.99;77.060
CCS
H25
发布
2013-05
实施

Corrosion of metals and alloys. Guidelines for assessing the significance of stress corrosion cracks detected in service

ICS
77.060
CCS
H25
发布
2013-04-30
实施
2013-04-30

Corrosion of metals and alloys - Stress corrosion testing - Part 1: General guidance on testing procedures (ISO 7539-1:2012); German version EN ISO 7539-1:2012

ICS
77.060
CCS
H25
发布
2013-04
实施

This part of ISO 7539 gives guidance on the key features that should be accounted for in designing and conducting tests to evaluate the resistance of a metal or its alloy to hydrogen embrittlement and hydrogen-assisted cracking. NOTE Particular methods of testing are not treated in detail in this document. These are described in other International Standards to which reference is given.

Corrosion of metals and alloys - Stress corrosion cracking - Part 11: Guidelines for testing the resistance of metals and alloys to hydrogen embrittlement and hydrogen-assisted cracking

ICS
77.060
CCS
H25
发布
2013-04
实施

Corrosion of metals and alloys. Stress corrosion testing. Reverse U-bend method

ICS
77.060
CCS
H25
发布
2013-03-31
实施
2013-03-31

Method of ferric chloride tests for stainless steels (Amendment 1)

ICS
77.060;77.140.20
CCS
H25
发布
2013-03-21
实施

This International Standard specifies two accelerated corrosion test procedures, Methods A and B, for the evaluation of corrosion behaviour of surface-treated metals and their alloys with and without paint on them in atmospheric environments. It also specifies the apparatus used. The two tests involve salt deposition and dry/wet conditions at a constant absolute humidity. Method A applies to: metals and their alloys (including corrosion-resistance alloys) Method B applies to: metals and their alloys

Corrosion of metals and alloys - Accelerated cyclic corrosion tests with exposure to synthetic ocean water salt-deposition process - "Dry" and "wet" conditions at constant absolute humidity

ICS
77.060
CCS
H25
发布
2013-03
实施

Corrosion of metals and alloys. Accelerated cyclic corrosion tests with exposure to synthetic ocean water salt-deposition process. $0QDry$0R and $0Qwet$0R conditions at constant absolute humidity

ICS
77.060
CCS
H25
发布
2013-02-28
实施
2013-02-28

Corrosion of metals and alloys. Stress corrosion testing. General guidance on testing procedures

ICS
77.060
CCS
H25
发布
2013-01-31
实施
2013-01-31

5.1 An inherent characteristic of some alloys of austenitic stainless steel is their tendency to crack at stress points when exposed to certain corrosive environments. The mechanisms of ESCC are complex and not completely understood but are apparently related to certain metallurgical properties. Chloride and fluoride ions have the potential to induce stress corrosion cracking in the absence of inhibiting ions.3 5.2 Chlorides are common to many environments, so great care shall be taken to protect austenitic stainless steel from chloride contamination. 5.3 Most thermal insulations will not, of themselves, cause stress corrosion cracking. Preproduction qualification tests are used to evaluate that under the conditions of the laboratory test that specific thermal insulation materials do not cause cracking of sensitized austenitic stainless steel. Insulation systems have the potential to act as collecting media by means of transmigration and concentration of corrosive ions on heated stainless steel surfaces. Exposure to elevated temperature results in evaporation of water and increased chemical reaction rates. Environments containing corrosive ions, moisture, and oxygen will increase the chance for stress corrosion cracking. 5.4 Insulation materials are available that are specially formulated to inhibit stress corrosion cracking in the presence of chlorides through modifications in basic composition or incorporation of certain chemical additives. 5.5 The ability of the 28-day test to measure the corrosion potential of insulation materials is documented by Karnes,4 whose data appear to have been used for construction of the acceptability curve used in Specification C795 and other specifications. 5.6 The metal for all of the coupons used in this test method (C692) shall be qualified (see Section 14) to ascertain that under conditions of the test, chloride ions will cause the metal to crack, and deionized water alone will not cause cracks. 1.1 This test method covers two procedures for the laboratory evaluation of thermal insulation materials to determine whether they contribute to external stress corrosion cracking (ESCC) of austenitic stainless steel due to soluble chlorides within the insulation. This laboratory procedure is not intended to cover all of the possible field conditions that contribute to ESCC. 1.2 While the 1977 edition of this test method (Dana test) is applicable only to wicking-type insulations, the procedures in this edition are intended to be applicable to all insulating materials, including cements, some of which disintegrate when tested in accordance with the 1977 edition. Wicking insulations are materials that wet through and through when partially (50 to 758201;%) immersed in water for a short period of time (10 min or less). 1.3 These procedures are intended primarily as a preproduction test for qualification of the basic ......

Standard Test Method for Evaluating the Influence of Thermal Insulations on External Stress Corrosion Cracking Tendency of Austenitic Stainless Steel

ICS
77.060 (Corrosion of metals)
CCS
H25
发布
2013
实施

1.1 These practices cover the following five tests: 1.1.1 Practice A—Oxalic Acid Etch Test for Classification of Etch Structures of Austenitic Stainless Steels (Sections 3 to 7, inclusive), 1.1.2 Practice B—Ferric Sulfate–Sulfuric Acid Test for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels (Sections 8 to 14, inclusive), 1.1.3 Practice C—Nitric Acid Test for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels (Sections 15 to 21, inclusive), 1.1.4 Practice E—Copper–Copper Sulfate–Sulfuric Acid Test for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels (Sections 22 to 31, inclusive), and 1.1.5 Practice F—Copper–Copper Sulfate–508201;% Sulfuric Acid Test for Detecting Susceptibility to Intergranular Attack in Molybdenum-Bearing Austenitic Stainless Steels (Sections 32 to 38, inclusive). 1.2 The oxalic acid etch test is a rapid method of identifying, by simple etching, those specimens of certain stainless steel grades that are essentially free of susceptibility to intergranular attack associated with chromium carbide precipitates. These specimens will have low corrosion rates in certain corrosion tests and therefore can be eliminated (screened) from testing as “acceptable.” The etch test is applicable only to those grades listed in the individual hot acid tests and classifies the specimens either as “acceptable” or as “suspect.” 1.3 The ferric sulfate–sulfuric acid test, the copper–copper sulfate–508201;% sulfuric acid test, and the nitric acid test are based on weight loss determinations and, thus, provide a quantitative measure of the relative performance of specimens evaluated. In contrast, the copper–copper sulfate–168201;% sulfuric acid test is based on visual examination of bend specimens and, therefore, classifies the specimens only as acceptable or nonacceptable. Note 1—See Appendix X1 for information regarding test selection. 1.4 The values stated in SI units are to be regarded as standard. The inch-pound equivalents a......

Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

ICS
77.140.20 (Steels of high quality)
CCS
H25
发布
2013
实施

Corrosion of metals and alloys. Test method for thermal-cycling exposure testing under high-temperature corrosion conditions for metallic materials

ICS
77.060
CCS
H25
发布
2012-12-31
实施
2012-12-31

Corrosion of metals and alloys. Method for metallographic examination of samples after exposure to high-temperature corrosive environments

ICS
77.060
CCS
H25
发布
2012-12-31
实施
2012-12-31

INTERNATIONAL STANDARD This International Standard covers examination of samples that have previously been exposed to corrosive environments at high temperatures. This International Standard covers the classification, identification, and thickness measurement of any corrosion layer forming during the exposure.

Corrosion of metals and alloys - Method for metallographic examination of samples after exposure to high-temperature corrosive environments

ICS
77.060
CCS
H25
发布
2012-12
实施

Corrosion of metals and alloys - Stress corrosion testing - Part 1: General guidance on testing procedures

ICS
77.060
CCS
H25
发布
2012-12
实施



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