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GB/T 26491-2011 English PDF

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US$239.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 26491-2011: Determination of intergranular corrosion of 5XXX series aluminum alloys by mass loss
Status: Obsolete

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 26491-2011	239	Add to Cart	2 days	Determination of intergranular corrosion of 5XXX series aluminum alloys by mass loss	Obsolete

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Basic data

Standard ID: GB/T 26491-2011 (GB/T26491-2011)
Description (Translated English): Determination of intergranular corrosion of 5XXX series aluminum alloys by mass loss
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H25
Classification of International Standard: 71.040.30
Word Count Estimation: 6,681
Date of Issue: 2011-05-12
Date of Implementation: 2012-02-01
Adopted Standard: ASTM G67-2004, NEQ
Regulation (derived from): Announcement of Newly Approved National Standards No. 6 of 2011
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the method for the determination with mass loss 5XXX series aluminum alloy sheet products susceptibility to intergranular corrosion test methods. This standard applies to 5XXX series aluminum alloy sheet products Determination of susceptibility to intergranular corrosion.

GB/T 26491-2011: Determination of intergranular corrosion of 5XXX series aluminum alloys by mass loss

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of intergranular corrosion of 5XXX series aluminum alloys by mass loss ICS 77.040.30 H25 National Standards of People's Republic of China 5XXX series aluminum alloy intergranular corrosion test methods Mass loss method Issued on. 2011-05-12 2012-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Inter used in this standard reference redrafted law ASTMG67-04 "Determination of 5XXX series aluminum alloy susceptibility to intergranular corrosion test standard Method (NAMLT test) "establishment, and the degree of consistency ASTMG67-04 not equivalent. The main standards and ASTMG67-04 To technical differences are as follows. --- Test the temperature of the solution "30 ℃ ± 0.1 ℃" changed to "30 ℃ ± 1 ℃"; --- Test solution concentration from the "70% to 72%" to "32"; --- By the formula "X = (m1-m2)/s" changed to "X = (m1-mn-1)/s". The standard proposed by China Nonferrous Metals Industry Association. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard is drafted by. Southwest Aluminum (Group) Co., Ltd. Participated in the drafting of this standard. Northeast Light Alloy Co., Ltd., Chinalco Ruimin Co., Ltd. Nanshan Light Alloy Co., Ltd. The main drafters of this standard. Zhouren Liang, Wen Qinghong, Zhang Yu, Hou Yi, Lu Jinhua, Chen, Lee Shui-shan. 5XXX series aluminum alloy intergranular corrosion test methods Mass loss method

1 Scope

This standard specifies the room 5XXX series aluminum alloy sheet products crystal corrosion susceptibility test methods for measuring the mass loss method. This standard applies to inter-5XXX series aluminum sheet products - Determination of susceptibility to intergranular corrosion.

2 principle of the method

The 5XXX series aluminum alloy sheet product samples immersed in 30 ℃ of concentrated nitric acid 24h, measuring its mass loss per unit area, and The cross section for metallurgical analysis to assess susceptibility to intergranular corrosion.

3 test solution

3.1 Sodium hydroxide solution (ρ50g/L). 3.2 nitric acid solution (11). 3.3 nitric acid solution (32).

4 Test Equipment

4.1 electric heated water bath. 4.2 Analytical balance (being an amount of 0.1mg). 4.3 Glass dryer (putting color gel). 4.4 beaker.

5 Sample

5.1 with a number of test samples should be taken from the same batch or the same heat treatment furnace secondary products. 5.2 from each sample was cut out at least two parallel samples. 5.3 Sample size is 50mm × 6mm × thickness product (product thickness greater than 25mm, to 25mm thick sample processing and retention Rolling the original surface side, and mark the machined surface of the sample), wherein the rolling direction is 50mm processed products. 5.4 If the sample tested immediately, samples can be placed in the dryer in the short-term preservation.

6 Test procedure

6.1 with fine lines or fine sandpaper rasp sample. 6.2 The sample is immersed in the sodium hydroxide solution to about 80 ℃ (3.1) in 1min, then washed with water. 6.3 then the sample is immersed in a solution of nitric acid (3.2) in the 30s, and then washed with water. 6.4 The sample was dried in air. Not allowed to use cloth or paper towel to dry the sample. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 26491-2011_English be delivered?

Answer: Upon your order, we will start to translate GB/T 26491-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 26491-2011_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 26491-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.