{"id":3487,"date":"2026-09-28T22:34:19","date_gmt":"2026-09-28T14:34:19","guid":{"rendered":"http:\/\/www.myphonepk.com\/blog\/?p=3487"},"modified":"2026-09-28T22:34:19","modified_gmt":"2026-09-28T14:34:19","slug":"what-are-the-materials-used-in-chery-auto-parts-4625-bee094","status":"publish","type":"post","link":"http:\/\/www.myphonepk.com\/blog\/2026\/09\/28\/what-are-the-materials-used-in-chery-auto-parts-4625-bee094\/","title":{"rendered":"What are the materials used in Chery auto parts?"},"content":{"rendered":"

As a Chery auto parts supplier, I get asked all the time by both fellow industry folks and regular car owners: \u201cWhat even are Chery parts made of?\u201d It\u2019s a fair question\u2014especially when you\u2019re trying to figure out why a certain part holds up, or how to pick the right replacement when your car needs it. I\u2019ve been working with Chery components for over 10 years now, so I\u2019ve got hands-on experience with the materials that go into everything from brake calipers to door panels, and let me tell you, it\u2019s not just a random mix of metals and plastics. Chery engineers are super specific about every single material, because that\u2019s how they keep those cars running reliably for hundreds of thousands of miles. Chery Auto Parts<\/a><\/p>\n

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Let\u2019s start with the stuff that makes up most of the under-the-hood heavy hitters\u2014engine parts, transmission components, suspension bits. If you look at a Chery\u2019s engine block, it\u2019s not pure iron like it used to be back in the day. It\u2019s a specialized cast aluminum alloy, usually called AlSi9Cu3. This alloy is perfect because it\u2019s lightweight, which helps with fuel efficiency, and it\u2019s super strong even when exposed to extreme heat (like, 200+ degrees Celsius, which is way hotter than anything you\u2019d feel on a summer day). I remember switching from old cast iron to this aluminum alloy about 8 years ago as a supplier, and the difference was night and day\u2014less weight means better gas mileage, and the parts don\u2019t warp as much under constant engine stress. For parts that need even more durability, like crankshafts or connecting rods, Chery uses forged steel\u2014specifically 42CrMo4, which is a low-alloy carbon steel. Forged steel is way tougher than cast steel, so it can handle the constant twisting and pressure from the engine pistons without cracking. We make a lot of these connecting rods at our factory, and the process is strict\u2014each one gets tested for fatigue resistance, because if a crankshaft fails, it\u2019s not just a part issue, it\u2019s a whole engine issue.<\/p>\n

Then there\u2019s the transmission. Most Chery passenger cars these days use either a manual or a dual-clutch automatic, and the parts inside those are a mix of hardened steel and high-performance polymer. The gear teeth, for example, are made of case-hardened 16MnCr5 steel. Case hardening means we heat the steel and add a layer of carbon to the surface, so the outside is super hard (resists wear) and the inside is tough (resists breaking). That\u2019s crucial for gears, because they\u2019re constantly sliding against each other at high speeds. For the transmission housings, they actually use a different aluminum alloy\u2014AlSi10Mg\u2014which is a bit more rigid than the engine block alloy, since it has to hold all the gears in place without flexing too much. I once had a customer bring in a Chery transmission that failed because a cheap replacement housing used regular plastic instead of this aluminum alloy, and it cracked after 50k miles. That\u2019s when I realized how non-negotiable Chery\u2019s material specs are\u2014cut corners here, and you\u2019re looking at big repairs down the line.<\/p>\n

Moving on to the body and interior, which are the parts people see and touch every day. The outer body panels\u2014hoods, doors, fenders\u2014are mostly made of cold-rolled steel (CRS) for the base, but they get coated with a zinc phosphate layer first to prevent rust. Wait, no\u2014actually, Chery uses hot-dip galvanized steel for most body panels these days, especially on newer models like the Tiggo 8. Hot-dip galvanizing means we dip the steel into molten zinc, so the zinc bonds to the surface and creates a permanent rust barrier. That\u2019s why you don\u2019t see a lot of old Cherys with rusted-out doors like you used to 15 years ago. For parts that need to be both strong and lightweight, like the front bumper beam, they use a combination of high-strength steel (HSS) and even some carbon fiber reinforced polymer (CFRP) in top-tier models. The bumper beam has to absorb impact in a crash without breaking, so HSS gives it that strength, and CFRP on the inner parts cuts down on weight without sacrificing safety.<\/p>\n

Interior parts are where it gets interesting\u2014people always assume car interiors are just cheap plastic, but Chery uses different plastics for different jobs. The hard interior trim pieces, like the dashboard frame or door handle bases, are made of polypropylene (PP) with talc filler. Talc is a mineral that makes the PP stiffer and more heat-resistant, so it doesn\u2019t warp when you leave your car in the sun all day. The softer parts, like the armrests or the steering wheel, use thermoplastic polyurethane (TPU) or polyvinyl chloride (PVC) blends. TPU is way more durable than regular PVC, so it resists scratches and doesn\u2019t get sticky over time\u2014something I\u2019ve seen a lot with generic replacement parts. Even the floor mats aren\u2019t just rubber; Chery uses a closed-cell polyethylene foam with a rubber outer layer, so it\u2019s water-resistant and doesn\u2019t get smelly after a while.<\/p>\n

Wait, I can\u2019t forget about the electrical parts, which are some of the most important but most overlooked. All the wiring harnesses, sensors, and the infotainment system are made with materials that have to handle heat, moisture, and constant vibration. The wiring insulation is usually cross-linked polyethylene (XLPE), which is way more heat-resistant than regular plastic\u2014so it doesn\u2019t melt if the engine bay gets hot. For connectors, they use a combination of nylon (PA66) and gold-plated copper contacts. Nylon is tough and resists chemicals, and gold plating prevents corrosion, so the electrical signals don\u2019t cut out when you\u2019re driving through rain or snow. I\u2019ve seen so many electrical issues with cars that used generic connectors that skipped the gold plating\u2014after a few years, the contacts get corroded, and your infotainment or taillights stop working. Chery\u2019s spec for gold plating is at least 0.5 microns thick, which might sound tiny, but it makes a huge difference in durability.<\/p>\n

Brakes are another big area where material choice matters. The brake rotors on Chery cars are usually gray iron, but with a graphite coating to reduce noise and improve heat dissipation. Gray iron is cheap and works well for brakes, but the graphite coating is a Chery-specific tweak that stops the squeaking that used to be common on old brake systems. The brake pads, though, are a mix of semi-metallic and ceramic materials. Semi-metallic pads have steel fibers for durability, but ceramic pads are quieter and don\u2019t wear down the rotors as fast\u2014so newer Chery models use ceramic pads on the front brakes for a smoother stop. I remember when we first started supplying ceramic brake pads for Chery, the team had to test them for 6 months to make sure they met the heat resistance requirements, because ceramic pads can struggle in very heavy braking situations. Turns out, they adjusted the mix to include a bit more copper, and now they work even better than the old semi-metallic ones.<\/p>\n

Oh, and let\u2019s not forget about the newer electric Chery models\u2014like the Omoda 5 EV\u2014those have totally different material needs. The battery packs are made with a lightweight aluminum casing (AlMg3, to be exact) that\u2019s both strong enough to protect the lithium-ion cells in a crash and light enough to not kill the car\u2019s range. The battery modules themselves use a flame-retardant polymer to contain any thermal runaway, which is a huge safety concern for EVs. Even the EV\u2019s suspension uses more aluminum parts to cut down on weight, which helps with range too. I got to see a prototype Omoda 5 EV a couple years ago, and the entire subframe was aluminum\u2014no steel there, which was wild compared to the gas models.<\/p>\n

As a Chery parts supplier, I can tell you that one of the biggest things that sets Chery apart from other brands is how specific they are about every material. It\u2019s not like some companies that just say \u201cuse plastic\u201d or \u201cuse steel\u201d\u2014they give exact grades, thicknesses, even coating processes. That\u2019s why Chery cars are so reliable, honestly. If you try to cut corners and use a cheaper material, it doesn\u2019t pass their quality checks, so we can\u2019t even send it out. I\u2019ve had times when a client asked for a \u201ccheaper version\u201d of a part, and I have to explain that we can\u2019t\u2014Chery\u2019s specs are non-negotiable. For example, last year a customer asked for a cheaper engine valve, and when I showed him that Chery requires 21-4N stainless steel for valves, not the regular 304 stainless, he realized why the price is what it is. 21-4N is heat-resistant up to 700 degrees Celsius, so it doesn\u2019t burn out like cheaper valves would.<\/p>\n

A lot of people ask me if generic replacement parts are made with the same materials. The short answer is no\u2014most generic parts use lower-grade materials to cut costs. A generic brake rotor might be regular cast iron instead of gray iron with graphite coating, so it rusts faster and squeaks. A generic interior trim piece might be regular PP without talc, so it warps in the sun. That\u2019s why sticking to genuine Chery parts or parts from a trusted supplier like us is so important\u2014we use exactly the materials Chery engineers designed the parts for.<\/p>\n

If you\u2019re a car owner looking for replacement parts, or a shop owner stocking Chery parts, you might be wondering where to get parts that meet Chery\u2019s material specs. I work directly with Chery\u2019s approved suppliers, so every part we make follows their exact material guidelines. We test every batch of parts\u2014we do tensile strength tests, heat resistance tests, corrosion tests, everything\u2014to make sure they match Chery\u2019s standards. Over the years, we\u2019ve had parts tested by independent labs, and they\u2019ve always come back meeting or exceeding Chery\u2019s requirements.<\/p>\n

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At the end of the day, the materials in Chery auto parts aren\u2019t just a list of chemicals\u2014they\u2019re the reason those cars run well, last long, and stay safe. Every material is chosen for a specific job: lightweight aluminum for fuel efficiency, high-strength steel for crash safety, heat-resistant plastics for under the hood, corrosion-resistant zinc coatings for rust protection. As a supplier, I take pride in making sure every part we send out uses the right stuff, no shortcuts. If you\u2019re in the market for Chery parts, whether you need an engine part, interior trim, brake components, or EV parts, I\u2019m here to help with genuine, Chery-spec materials that you can trust. Hit me up to talk through your needs, get a quote, or ask any questions about the materials that go into Chery parts\u2014I\u2019m happy to share what I know after years in this business.<\/p>\n

Chery Tiggo 7 Drive Shaft<\/a> References:<\/p>\n

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  1. Chery Automobile Co., Ltd. (2022). Material Specification for Passenger Vehicle Components. Chery Global Engineering Standards.<\/li>\n
  2. ASM International. (2019). Cast Aluminum Alloys for Automotive Applications. ASM Handbook, Volume 2: Properties of Steel and Other Alloys.<\/li>\n
  3. Society of Automotive Engineers (SAE). (2021). Standard J1961: Automotive Hot-Dip Galvanized Steel Sheet. SAE International.<\/li>\n
  4. International Organization for Standardization (ISO). (2020). ISO 10327: Automotive Brake Pads – Performance Requirements and Test Methods. ISO.<\/li>\n
  5. Chery New Energy. (2023). EV Battery Component Material Guidelines. Chery Electric Vehicle Technical Documents.<\/li>\n<\/ol>\n
    \n

    Wuhu Shengsheng Automotive Parts Co., Ltd.<\/a>
    As one of the most professional chery auto parts manufacturers and suppliers in China, we offer a wide range of products with superior quality. Welcome to wholesale advanced chery auto parts made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.
    Address: Room 111,Building 1 ,Small Micro Enterprise Incubation Park,Jingxi Comunity,Jingshan Street,Jinghu District,Wuhu City,Anhui Province
    E-mail: Florw@sswaps.com
    WebSite:     https:\/\/www.sswaps.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    As a Chery auto parts supplier, I get asked all the time by both fellow industry … What are the materials used in Chery auto parts?<\/span>Read more<\/a><\/p>\n","protected":false},"author":884,"featured_media":3487,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3450],"class_list":["post-3487","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-chery-auto-parts-4afc-bf2915"],"_links":{"self":[{"href":"http:\/\/www.myphonepk.com\/blog\/wp-json\/wp\/v2\/posts\/3487","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.myphonepk.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.myphonepk.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.myphonepk.com\/blog\/wp-json\/wp\/v2\/users\/884"}],"replies":[{"embeddable":true,"href":"http:\/\/www.myphonepk.com\/blog\/wp-json\/wp\/v2\/comments?post=3487"}],"version-history":[{"count":0,"href":"http:\/\/www.myphonepk.com\/blog\/wp-json\/wp\/v2\/posts\/3487\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.myphonepk.com\/blog\/wp-json\/wp\/v2\/posts\/3487"}],"wp:attachment":[{"href":"http:\/\/www.myphonepk.com\/blog\/wp-json\/wp\/v2\/media?parent=3487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.myphonepk.com\/blog\/wp-json\/wp\/v2\/categories?post=3487"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.myphonepk.com\/blog\/wp-json\/wp\/v2\/tags?post=3487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}