HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189760 (18 Oct 2025)

GB/T 3849.1-2015 English PDF

US$149.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 3849.1-2015: Hard metals -- Rockwell hardness test (scale A) -- Part 1: Test method
Status: Valid

GB/T 3849.1: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 3849.1-2015English149 Add to Cart 3 days [Need to translate] Hard metals -- Rockwell hardness test (scale A) -- Part 1: Test method Valid GB/T 3849.1-2015
GB/T 3849-1983English199 Add to Cart 3 days [Need to translate] Hardmetals. Rockwell hardness(scale A) test method Obsolete GB/T 3849-1983

PDF similar to GB/T 3849.1-2015


Standard similar to GB/T 3849.1-2015

GB/T 3488.4   GB/T 5124.4   GB/T 3850   GB/T 3848   GB/T 3849.2   

Basic data

Standard ID GB/T 3849.1-2015 (GB/T3849.1-2015)
Description (Translated English) Hard metals -- Rockwell hardness test (scale A) -- Part 1: Test method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H16
Classification of International Standard 77.160
Word Count Estimation 7,741
Date of Issue 2015-12-10
Date of Implementation 2016-07-01
Older Standard (superseded by this standard) GB/T 3849-1983
Quoted Standard GB/T 230.1-2009; GB/T 230.2-2012
Adopted Standard ISO 3738-1-1982, NEQ
Regulation (derived from) National Standard Announcement 2015 No.38
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 principles, symbols and explanations of the Carbide Rockwell Hardness (A scale) test, the test equipment, the sample, the test procedure, the results and the test report. This standard applies to the determination of Carbide Rockwell hardness (A scale).

GB/T 3849.1-2015: Hard metals -- Rockwell hardness test (scale A) -- Part 1: Test method

---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.
Hardmetals - Rockwell hardness test (scale A) - Part 1. Test method ICS 77.160 H16 National Standards of People's Republic of China Replacing GB/T 3849-1983 Carbide Rockwell Hardness Test (A Scale) Part 1. Test methods Hardmetals-Rockwelhardnesstest (scaleA) Part 1. Testmethod (ISO 3738-1. 1982, NEQ) 2015-12-10 released 2016-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

GB/T 3849 "Carbide Rockwell Hardness Test (A scale)" is divided into the following two parts. - Part 1. Test methods; Part 2. Preparation and calibration of standard test blocks. This part is part 1 of GB/T 3849. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part of the replacement GB/T 3849-1983 "Carbide Rockwell hardness (A scale) test method", and GB/T 3849-1983 phase The main changes are as follows. --- modified the standard name; --- increase the preamble, normative reference documents, adjust the standard structure; - the principle has been re-described; - change the angle of the diamond cone (120 ± 0.5 °) in Table 1 to "the angle of the diamond cone (120 ° ± 0.35 °)"; --- increase the Rockwell hardness value of the representation; --- the original reference standard GB/T 2849-1981, GB/T 230-1983 were updated to GB/T 230.2-2012, GB/T 230.1-2009; --- will GB/T 3849-1983 "5.1.2 the speed of the main test force to control, should make the hardness of no load, heavy hammer movement In 6 ~ 8s to complete. "Re-described as." 7.1b) should be no shock and no vibration or no swing to adjust the measurement device to the benchmark Position, the time from the initial test force F0 to the total test force F should be not less than 6 s and not more than 8 s. "; --- "GB/T 3849-1983 5.1.3 in the" main test force "to" total test force. " Partial use of the re-drafting method Reference ISO 3878-1. 1982 "Carbide Rockwell hardness test (A scale) Part 1. Test Method "preparation. Consistent with ISO 3878-1. 1982 is non-equivalent. This part is made by China Nonferrous Metals Industry Association. This part is the national nonferrous Metals Standardization Technical Committee (SAC/TC243). This part of the drafting unit. National Tungsten Materials Engineering Technology Research Center, Xiamen Jinlu Special Alloy Co., Ltd., Zhuzhou Cemented Carbide Group Co., Ltd., Zigong Cemented Carbide Co., Ltd. The main drafters of this part. Zhu Guirong, Chen Dongxiao, Wu Chonghu, Xiao Manduo, Fan Zhili, Sun Xiaoyu, Li Huifang, Cao Wanli. This part of the previous version of the standard to replace the release of the situation. --- GB/T 3849-1983. Carbide Rockwell Hardness Test (A Scale) Part 1. Test methods

1 Scope

This part of GB/T 3849 specifies the principles, symbols and instructions for the Carbock hardness (A scale) test of cemented carbide, test equipment, test Sample, test procedure, result indication and test report. This part applies to the determination of carbide hardness of Rockwell (A scale).

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 230.1-2009 Rockwell hardness test for metallic materials - Part 1. Test methods (A, B, C, D, E, F, G, H, K, N, T scale) (ISO 6508-1..2005, MOD) GB/T 230.2-2012 Metallic materials - Rockwell hardness test - Part 2. Hardness meters (A, B, C, D, E, F, G, H, K, N, T Scale) inspection and calibration (ISO 6508-2..2005, MOD)

3 principle

The tapered diamond indenter is pressed into the sample surface in two steps as shown in Figure 1, and after the specified holding time, the main test force is removed and the measurement The residual indentation depth e at the initial test force, and the Rockwell hardness HRA calculated from the e value (see Table 1). figure 1

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 3849.1-2015_English be delivered?

Answer: Upon your order, we will start to translate GB/T 3849.1-2015_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 3849.1-2015_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 3849.1-2015_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 [email protected]. 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.

Question 5: Should I purchase the latest version GB/T 3849.1-2015?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 3849.1-2015 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.