GB/T 36398-2018Lanthanum cerium-magnesium alloy (English PDF)
镧铈镁合金
This is a limited preview
Buy now to download the full PDF (15 pages)
Need quotation for your management?
Get a formal quotation for GB/T 36398-2018 in 30 minutes.
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 7, 2018
Implementation date
March 1, 2019
Scope
GB/T 36398-2018 is the English-translated version of 镧铈镁合金.
GB/T 36398-2018 covers lanthanum cerium-magnesium alloy made by smelting with lanthanum cerium metal as raw material. The alloy is used to produce 3C electronic thin-walled products and as the main additive for rare earth magnesium alloys in die-cast parts such as engine blocks, gearbox housings and fuel tank bottom shells.
By chemical composition it is divided into six designations, from LaCeMg-30A to LaCeMg-20B.
The standard specifies the requirements, test methods and inspection rules, including sampling by drilling the ingot and retesting double samples when the chemical composition does not conform, as well as marking, packing, transport, storage and the quality certificate. It was issued on 7 June 2018 and has applied since 1 March 2019.
Found what you need?
Document preview — GB/T 36398-2018
National Standard of the People's Republic of China
- ICS
- 77.120.99
- Classification
- H 65
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword3
- 1 Scope4
- 2 Normative references4
- 3 Requirements4
- 4 Test methods5
- 5 Inspection rules6
- 6 Marking, packing, transport, storage, and quality certificate7
1 Scope
This Standard specifies the requirements, test methods, inspection rules and marking, packing, transport, storage, and quality certificate of lanthanum cerium-magnesium alloy.
This Standard is applicable to the lanthanum cerium-magnesium alloy prepared by the smelting method with lanthanum cerium metal as raw material, which is mainly used for the production of 3C electronic thin-walled products, as well as the main additive for rare earth magnesium alloys such as automobile engine block, gearbox housing heat-resistant parts, and fuel tank bottom shell die-casting.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the versions with the dates indicated are applicable to this document. For the undated references, the latest version (including all the amendments) are applicable to this document.
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 12690.1 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides - Part 1. Determination of carbon and sulfur contents - High frequency-infrared absorption method
GB/T 17803 Designation system for rare earth products
GB/T 29916 Chemical Analysis Methods for Lanthanum Magnesium Alloy
3 Requirements
3.1 Product designation
The product, according to chemical composition, is divided into six designations.
LaCeMg-30A, LaCeMg-30B, LaCeMg-25A, LaCeMg-25B, LaCeMg-20A, LaCeMg-20B. The designation system for the products shall comply with the […]
5 Inspection rules
5.4.2 When sampling for chemical composition analysis, firstly, POLISH the sample; and USE a drill with a diameter of 5 mm~10 mm to drill more than 3 points equidistant on each of upper and lower surfaces of the alloy ingot, DISCARD the drillings 0.5 mm~1.0 mm from the surface of the ingot; then, DRILL the sample, the sample amount is not less than 10 g; the obtained sample is quickly mixed and reduced to the required amount, and immediately sealed and preserved.
5.4.3 The methods of sampling and sample preparation for the inspection of new section and appearance quality shall be determined by negotiation between the supplier and the buyer.
5.5 Judgment of inspection results
5.5.1 If the analysis results of chemical composition are inconsistent with the provisions of this Standard, from the lot of products, double samples shall be taken for repeated tests. If there is still any unqualified item, the lot shall be judged as unqualified.
5.5.2 If the new section inspection is unqualified, the lot of products shall be directly judged as unqualified. If the inspection results of appearance quality are inconsistent with the provisions of this Standard, the inspection piece by piece is allowed; and the qualified products shall be delivered.
6 Marking, packing, transport, storage, and quality certificate
6.1 Marking, packing
6.1.1 The packing drum (case) shall be marked with a clear fadeless mark, which indicates.
a) Supplier name;
b) Product name;
c) Designation, lot number, net weight, gross weight;
d) Exit-factory date;
e) "Moisture-proof" sign or typeface.
6.1.2 After the product is vacuum-sealed in a plastic bag, the outer packing drum is generally an iron drum or a wooden drum. The packing form can also be determined by negotiation between the supplier and the buyer. […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 8170Rules of rounding off for numerical values & expression and judgement of limiting values
- GB/T 12690.1Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 1: Determination of carbon and sulfur contents - High frequency-infrared absorption method
- GB/T 17803Designation system for rare earth products
- GB/T 29916Chemical analysis methods for lanthanum magnesium alloy
Similar standards
How to Download GB/T 36398-2018
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB/T 12690.1-2022 — Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 1: Determination of carbon and sulfur contents - High frequency-infrared absorption method
GB/T 12690.10-2003 — Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of phosphorus content by molybdenum blue spectrophotometric method
GB/T 12690.11-2025 — Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 11: Determination of magnesium content - Flame atomic absorption spectrometric method
Secure payment via Stripe
Payments accepted
GB/T 36398-2018
$55.00