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product composition analysis of metallic materials

metallic materials are materials that have properties such as lustre, ductility, easy conductivity and heat transfer. they are generally divided into two types: ferrous and non-ferrous metals. ferrous metals include iron, chromium, manganese, etc. non-ferrous metals are all metals other than iron, chromium and manganese.

steel is the basic structural material, called the "bones of industry", non-ferrous metals are the basic materials for the development of the national economy, aviation, aerospace, automotive, machinery manufacturing, electric power, communications, construction, home appliances and most other industries are based on non-ferrous materials for production. with the rapid progress of modern chemical industry, agriculture and science and technology, the position of non-ferrous metals in human development is becoming more and more important. it is not only an important strategic material in the world, an important means of production, but also an important material for the indispensable consumer material in human life.

the composition and content of metals directly affect the performance and value of the material, and a range of standardised testing methods have been developed by countries and industry organisations for the study and testing of metals.

we use classical chemical analysis methods, modern advanced analysis and testing instruments, according to gb chinese national series standards, american astm series standards, hb aviation series standards, gjb national military standard series standards, yb metallurgical industry series standards, ys non-ferrous metal series standards, iso international series standards, xb rare earth industry series standards, sn commodity inspection series standards, jb chinese machinery industry series accurate analysis and testing of the chemical composition of various metallic and non-metallic materials; in-situ analysis for the study of material distribution, in-situ analysis for the study of material composition distribution, segregation, looseness, inclusions content, composition and particle size, phase analysis services for the study of the type of each precipitated phase, crystal structure, particle size distribution and composition of materials.

noa has a central laboratory of nearly 30,000m2, with organic, inorganic, physical and chemical, thermal analysis, mechanics, reliability, combustion and weathering laboratories. we can provide one-stop analysis and testing services for metal materials and products, such as raw material quality control, composition analysis, foreign matter analysis, performance testing and reliability testing.

service content

noa can provide composition analysis, failure analysis, comparative analysis, foreign matter analysis and other services for metals and related materials through spectroscopy, chromatography and other large precision instruments, using multivariate analysis tools, to help customers analyse the chemical composition and composition content of samples, or qualitative and quantitative analysis of specified components and content according to customer requirements, identification of raw materials, additives, specific components, content and foreign matter composition and other analysis services.

i. service offerings

service offerings	common products
pure metal	pure copper, pure gold, pure silver, pure titanium
alloy	nickel-based high temperature alloys, cobalt-based high temperature alloys, aluminium alloys, copper alloys, zinc alloys, magnesium alloys, titanium alloys, intermediate alloys
steel	carbon steel, stainless steel, cast iron, ferroalloys, low and medium alloy steel, stainless steel
metal ore	ferrous metal ores, rare metal ores, non-ferrous metal ores, precious metal ores
metallurgical raw and auxiliary materials	ores, deoxidisers, decarburisers, desulphurisers, refractory materials

ii. services

service	service definition
chemical composition analysis	determination of the content of each element in the material to verify that it meets the content requirements specified in the standard;
coated coating test	tests for composition, thickness, adhesion, toughness, abrasion resistance, impact, condensation, optics, flame retardancy, ageing, etc.;
large-scale instrument testing	icp-ms, gd-ms, sem and other instrumental tests
metallographic analysis	analysis of microstructure, grain size, non-metallic inclusions, phase composition, macroscopic low magnification, depth of hardened/carburized nitriding layers, etc;
failure analysis	the integrated use of micromorphological analysis, compositional analysis, mechanical property analysis, process functional analysis and simulation replication tests;
mechanical properties	tensile, impact, hardness, bending, compression, fatigue and tube processability testing of materials in different environments;
ageing properties	tests for acid resistance, alkaline resistance, salt spray resistance and weather resistance of the coating;
thermal properties	determination of the coefficient of thermal expansion, thermal conductivity, etc. of materials;
corrosive properties	determines the ability of a material to resist corrosion by surrounding media. salt spray, intergranular, stress corrosion, crevice corrosion of stainless steel, etc.;
environmental testing	rohs, reach, california 65, halogen, hexavalent chromium, nickel release, food grade contact material testing, etc.;
raw material quality control	raw material purity testing, material characterisation, qualitative and quantitative analysis of specified components

service process

q&a

what is brand identification?

grade identification is the process of determining the composition of a sample and its proportions by means of instrumental analysis, and then determining whether it meets the requirements of the standard against which the material grade is provided.

what are the common types of hardness tests?

the so-called hardness is the ability of a material to resist harder objects being pressed into its surface. depending on the test method and the range of adaptation, the hardness units can be divided into brinell, vickers, rockwell, micro vickers and many others. different units have different test methods and are suitable for materials or occasions with different characteristics.

what is the use of metallographic testing in metal testing?

metallographic testing allows us to study metals in the macroscopic or microscopic realm, most notably, of course, the physical and chemical morphology on the microstructure. the metallographic test contains the grain size, type of second phase, structure, composition, quantity, morphology, size and distribution, etc. metallographic examinations are mainly used in the analysis of metal fractures, the identification of metal defects and the confirmation of surface quality.

what equipment is commonly used for metal composition analysis?

instruments for metal composition mainly contain: direct reading spectrometer, carbon and sulphur analyser, oxygen, nitrogen and hydrogen analyser, icp spectrometer, icp-ms, wavelength dispersive x-ray fluorescence spectrometer, metal in-situ analyser, pulsed fusion - time of flight mass spectrometer.

our advantage

authoritative qualification

noa has been approved by certification and accreditation administration of the people’s republic of china（cnca）(cnca-r-2002-051), and has obtained qualification of china inspection body and laboratory mandatory approval (cma),and has passed the multiple approvals of china national accreditation service for conformity assessment (cnas), international accreditation service (ias), united kingdom accreditation service (ukas), joint accreditation system of australia and new zealand (jas-anz). noa has been approved by state administration for market regulation of china, and has been recognized as inspection and testing institution of china's special equipment, as well as the qualification of china's national equipment supervision and engineering supervision. noa-dci is the notified body of the ce directive of the european commission. noa has been recognized by the international electrotechnical commission (iecq) by obtaining electronic component quality assessment system. it is also a national inspection and assessment notified body of import and export commodity in china.noa is a high-tech enterprise in shanghai.

improve performance, realize asset value appreciation, and service throughout the entire value chain

from pre-design to post-operation, noa has the ability to guarantee the whole life cycle of the business. noa, as an independent third-party inspection company, has a large number of domestic and international standards and specifications proficient in design, welding, non-destructive testing, painting, packaging and other fields the experienced team of professional engineers and inspection experts, with more than ten years of experience in the domestic market, is familiar with all aspects of the domestic industrial equipment supply chain, and can provide you with technical support services for the full life cycle of technical services in a timely manner, combining various products. inspection, certification, testing, consulting, and auditing services can provide you with one-stop all-round comprehensive services.

quality, efficiency and service

noa has formed a mature and solid operation system in the development of more than 20 years. we let technical experts who are familiar with market regulations and testing standards and have professional industry experience to carry out inspection, evaluation and design review work. while meeting the requirements of domestic and international standards, we ensure that customers can obtain satisfactory service results in the first time with accurate time-sensitive management methods, and ensure that customers can seize the opportunity in the market competition.

service area

noa inspection services currently cover europe, australia, russia, some middle east regions and most regions in china. noa can ensure the consistency and continuity of customer service in different regions, and eliminate the impact of unfamiliar environments on customer quality. the guarantees and the impact of project implementation enable customers to participate in different markets across the country or around the world with flawless quality.

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