SECC vs SECE vs ECCS: Choosing the Right Coated Steel for Deep-Drawn Heating and Motor Parts
SECC vs SECE vs ECCS: Choosing the Right Coated Steel for Deep-Drawn Heating and Motor Parts
Choosing coated steel for deep-drawn heating and motor parts starts with the substrate, not the color. SECC, SECE and ECCS describe different base-metal systems, and each has a different balance of formability, coating adhesion, and heat performance. This guide compares three YOUNGSON METAL models for engineering buyers: TC-70SECC-MB-HE (SECC), SECE-PTFE-MATTE-050 (SECE), and YS-ECCS-G2-PF (ECCS).
Chongqing Youngson Metal Products CO. LTD is a BV ISO9001:2015 certified manufacturer established in 2016, specializing in precision metal surface processing and premium coil supplying. The company operates its own coating lines and precise slitting machines, which matters when a deep-drawn component needs slit coils, narrow strips, or controlled thickness.
Problem definition: why a functional coated steel cannot be selected by finish alone
Deep drawing turns a coated blank into a curved, often multi-step component. During forming, the coating and substrate are stretched together. If the base metal is not a forming grade, or the coating has low adhesion, defects such as peeling, micro-cracking, or functional coating breakdown can appear. Thermal parts add another variable: repeated heating and cooling can expose coating adhesion weaknesses that are invisible on a flat panel.
Motor housings add still another boundary condition. A deep-drawn housing may need a smooth, low-friction surface to avoid galling or to support assembly into actuators. Food-contact parts may need surface release, migration compliance, and corrosion safety at the same time. That is why the materials in this article are not interchangeable commodity prepainted sheets.
Industry background: specialty color coated steel is a growing material category
The overall color coated steel category is widely used in building products, appliances, and packaging. Polaris Market Research valued the global pre-painted steel market at USD 24.63 billion in 2023, with projected growth at a 5.8% CAGR to 2032. China exported approximately 6.5 million tons of color-coated steel sheets in 2023, according to MySteel data.
Within this large market, specialty deep-drawing grades are defined by substrate quality and coating function. Engineers evaluating color coated steel coil manufacturers for deep-drawn thermal or motor parts need more than a color card; they need model-level data on substrate, coating system, thickness tolerance, thermal resistance, and formability.
Detailed solution: three YOUNGSON METAL products compared
TC-70SECC-MB-HE: drawn-quality SECC with high-emissivity matte black surface
TC-70SECC-MB-HE belongs to the high-performance pre-coated steel strips and coils for thermal appliances. It is made of drawn-quality electrogalvanized steel (SECC) base with an advanced ThermaCoat high-emissivity polymer matrix. Thickness is 0.70 mm with a precision tolerance of -0.01 to 0 mm; width range is 4.0 mm to 1250 mm with custom slitting available.
The coating finish is high-emissivity matte black. Thermal emissivity is ≥0.85, which is a meaningful value for radiative heat transfer. The product is also described as anti-peeling: it shows no delamination or peeling after more than 1,000 continuous thermal cycles from room temperature to 350°C. Typical applications include household thermal appliances such as heating disks, electric griddles, skillet bases, electric kettle element covers, and toaster components, as well as commercial and industrial heating plates, automotive radiant heat reflectors, and HVAC thermal management modules.
SECE-PTFE-MATTE-050: EDDQ SECE with PTFE coating for motor housings
SECE-PTFE-MATTE-050 is a deep-drawn SECE steel with PTFE matte black coating for motor housings. The product belongs to the surface-treated black coated electrogalvanized steel sheet category. Its base metal is EDDQ SECE, an electrogalvanized steel specified here for deep drawing. The coating is described as PTFE-integrated matte black, with an ultra-smooth, self-lubricating surface.
Thickness range is 0.40 mm to 0.50 mm; width range is 4.0 mm to 1250 mm. Target uses include precision electric micro-motors, automotive electronics, smart appliances, and high-speed actuators. The material combines deep-drawing geometry with a low-friction surface behavior needed for motor housing and actuator applications.
YS-ECCS-G2-PF: high-ductility ECCS with PFAS-free non-stick coating
YS-ECCS-G2-PF belongs to the food-contact-safe nonstick deep-draw coated steel category. The base metal can be high-ductility ECCS or aluminized steel. It uses an advanced two-layer non-stick coating system and is PFAS-free. Thickness range is 0.30 mm to 0.60 mm; width range is 4 mm to 1000 mm with custom slit-to-width service. Available formats include precision strips and blanked small sheets. Surface finish options include matte black, black silver, grey silver, and milk white. Thermal resistance is listed up to 280°C.
For food-contact users, the product passes RoHS and REACH heavy metal migration testing, the 3% acetic acid test, and the 5% citric acid test. It is positioned for cakeware, bakeware production, and commercial food-processing equipment.
Formability, coating adhesion, and thermal behavior
The three products are optimized for different failure modes. TC-70SECC-MB-HE is a drawn-quality SECC heating material; its stated adhesion evidence is thermal cycling endurance without peeling. SECE-PTFE-MATTE-050 is explicitly a deep-drawn SECE steel using EDDQ SECE with a PTFE-integrated surface. YS-ECCS-G2-PF uses high-ductility ECCS or aluminized steel and is classified as suitable for deep drawing in the food-contact non-stick category.
From a thermal standpoint, the model with the strongest radiant-heat specification is TC-70SECC-MB-HE: emissivity ≥0.85 and repeated thermal cycling up to 350°C. YS-ECCS-G2-PF is a heat-resistant non-stick product up to 280°C, but it is not described as a high-emissivity radiant heater surface. SECE-PTFE-MATTE-050 is aimed at motor housing and low-friction performance; it does not carry a 350°C thermal-cycle claim in the data used for this comparison. If a motor housing also has to manage radiant heat at 350°C, that condition should be validated with the supplier.
Step-by-step selection for deep-drawn heating and motor parts
Use the following workflow to move from coated steel category to model-level specification.
- Define the draw geometry. Is the part a shallow plate, a deep can, a motor housing, or a complex actuator shell? Deeper geometry increases demand on both the substrate and coating system.
- Record the thermal load. Determine maximum temperature, continuous or cyclic duty, and whether the part must emit heat or merely resist heat. For radiant heating, high emissivity is the relevant parameter; for food-contact bakeware, thermal resistance and release function matter.
- Define the coating mission. Choose between high-emissivity heat transfer, PTFE low-friction behavior, or PFAS-free non-stick food release. The coating mission decides which product family is relevant.
- Check regulatory requirements. Export applications often require REACH and RoHS compliance. Food-contact applications may require migration testing such as acetic acid or citric acid immersion. Confirm the applicable standard for the destination market.
- Check dimensions and slitting. Verify thickness tolerance, width range, and whether narrow strips or small sheets are needed. TC-70SECC-MB-HE and SECE-PTFE-MATTE-050 reach 1250 mm width; YS-ECCS-G2-PF reaches 1000 mm with custom slit-to-width.
- Validate with a sample. Coating performance in deep drawing depends on die geometry, lubricant, and press conditions. A slit strip or small sheet sample is the correct way to validate actual stamping behavior before production.
Use cases: which product fits which application
Household and commercial radiant heating elements
Heating disks, electric griddles, electric kettle element covers, toaster components, industrial heating plates, and automotive HVAC thermal modules are use cases for TC-70SECC-MB-HE. The key drivers are high thermal emissivity and anti-peeling behavior under repeated heating and cooling. SECC drawn-quality electrogalvanized steel provides the formable base, while the matte black high-emissivity coating supports radiative heat transfer.
Precision motor housings and actuator components
SECE-PTFE-MATTE-050 is intended for precision electric micro-motors, automotive electronics, smart appliances, and high-speed actuators. The relevant property is not radiant heating but the combination of EDDQ SECE deep-drawing capability and a PTFE-integrated, self-lubricating matte black surface.
Food-contact bakeware and commercial food processing equipment
YS-ECCS-G2-PF is the relevant choice when release and food-contact compliance are priorities. Cakeware, bakeware, and commercial food processing equipment require PFAS-free non-stick behavior, clean deep drawing, and thermal resistance up to 280°C. The product passes RoHS and REACH heavy-metal migration limits along with acetic and citric acid exposure tests.
Comparison table: SECC vs SECE vs ECCS coated steel for deep-drawn components
| Characteristic | TC-70SECC-MB-HE | SECE-PTFE-MATTE-050 | YS-ECCS-G2-PF |
|---|---|---|---|
| Product category | High-performance pre-coated steel strips and coils for thermal appliances | Surface-treated black coated electrogalvanized steel sheet | Food-contact-safe nonstick deep-draw coated steel |
| Base metal | Drawn-quality electrogalvanized steel (SECC) | EDDQ SECE electrogalvanized steel | High-ductility ECCS or aluminized steel |
| Thickness | 0.70 mm, precision tolerance -0.01 to 0 mm | 0.40 mm - 0.50 mm | 0.30 mm - 0.60 mm |
| Width | 4.0 mm - 1250 mm, custom slitting | 4.0 mm - 1250 mm | 4 mm - 1000 mm, custom slit-to-width |
| Coating function | High-emissivity matte black for radiative heat transfer | PTFE-integrated matte black, ultra-smooth, self-lubricating | Two-layer PFAS-free non-stick system |
| Thermal evidence | Emissivity ≥0.85; no delamination or peeling after 1000+ cycles from room temperature to 350°C | No separate 350°C thermal-cycle claim in current product data | Thermal resistance up to 280°C |
| Forming intent | Drawn-quality SECC anti-peeling heating steel | Deep-drawn SECE steel for motor housings with low-friction surface | High-ductility ECCS suitable for deep drawing; precision strip and blanked sheets available |
| Typical applications | Heating disks, electric griddles, toaster components, heating plates, radiant heat reflectors | Precision micro-motors, automotive electronics, smart appliances, actuators | Cakeware, bakeware, commercial food processing equipment |
Frequently asked questions
What are SECC, SECE and ECCS when used on color coated steel coils?
SECC refers to drawn-quality electrogalvanized steel used in TC-70SECC-MB-HE. SECE refers to EDDQ electrogalvanized steel used in SECE-PTFE-MATTE-050. ECCS refers to electrolytic chromium coated steel, and YS-ECCS-G2-PF uses a high-ductility ECCS or aluminized base. These names describe substrate systems, not just surface color.
Which material should be used for high-emissivity heating elements?
TC-70SECC-MB-HE is the model specifically described as high-emissivity heating steel. It has thermal emissivity ≥0.85, shows no peeling after more than 1,000 thermal cycles from room temperature to 350°C, and is positioned for heating disks, griddles, kettle element covers, toaster components, and radiant heat parts. If the application is food-contact bakeware up to 280°C, YS-ECCS-G2-PF may be more relevant.
Is YS-ECCS-G2-PF a true deep-drawing grade?
Yes. YS-ECCS-G2-PF is classified as food-contact-safe nonstick deep-draw coated steel. It uses high-ductility ECCS or aluminized steel, is available as precision strips and blanked sheets, and is suitable for deep drawing. It offers PFAS-free non-stick performance, thermal resistance up to 280°C, and passes 3% acetic acid and 5% citric acid tests.
What should I ask a color coated steel coil manufacturer before ordering specialty deep-drawn products?
Ask for model-specific parameters, not generic brochures. Confirm base metal, thickness tolerance, coating function, thermal limits, and compliance evidence. Chongqing Youngson Metal Products CO. LTD is a BV ISO9001:2015 certified manufacturer with in-house coating lines, slitting capability, and an R&D team of 5 engineers and senior process technicians. The company states that its products have passed SGS testing for REACH and RoHS heavy metal regulations. For a future tooling decision, request a slit strip or sheet sample from the exact coating system under evaluation.
Conclusion: choose the substrate and coating system according to the part's real duty
SECC, SECE, and ECCS coated steel options should not be selected only by surface color. TC-70SECC-MB-HE addresses high-emissivity heating duty with a 0.70 mm drawn-quality SECC base and anti-peeling thermal performance. SECE-PTFE-MATTE-050 addresses deep-drawn motor housing and low-friction requirements with EDDQ SECE and PTFE-integrated matte black coating. YS-ECCS-G2-PF addresses PFAS-free food-contact non-stick deep-drawn parts with high-ductility ECCS or aluminized steel.
For each new part, define the forming severity, thermal environment, and coating mission first. Then select the model that meets those conditions, and validate it on actual tooling before mass production.
Need to evaluate SECC, SECE, or ECCS coated steel for a deep-drawn heating or motor component? Contact YOUNGSON METAL for product-specific specifications and samples.
Email: info@youngsonmetal.com | Tel: +86-23-62566629