We can help you find a reliable Chinese manufacturer specializing in commercial-grade steel door knobs. You can have the door knobs manufactured according to your specifications. We can help you purchase components that are functional and durable at prices that are much lower than you would get domestically. We work with the Chinese manufacturer to ensure that the products are of the highest quality.  

Typical materials: Various grades of steel

Steel is an alloy made of iron and some parts of carbon. There are nearly 3,500 different grades of steel. SS316, SS316L, SS304, and A216 are some commonly used steel grades in manufacturing.

Many people prefer to use SS304 for door knobs.

• Door knobs are touched by many people every day, making them a common mode of bacteria transfer. With SS304, the chances of bacteria remaining on door knobs are lowered, which in turn lowers the rate of bacteria transfer.
• SS304 is highly resistant to corrosion. You can use stronger chemicals to clean your door knobs, which makes them even more hygienic.
• Steel door knobs brighten the aesthetics of your home or office as they provide a clean, minimalist finish.

Material composition

• 18% Chromium
• 8% Nickel
• 0.08% Carbon

Maximum use temperature: Approximately 870℃ (1598℉)

Tensile strength: 510 to 620 Mpa (73.9 to 89.9 ksi)

Common MOQ: 100 to 10,000 pcs

Generally, standardized or common parts have higher MOQs. While MOQs are negotiable, buyers are advised to be reasonable about the numbers.

Manufacturing methods: Stamping, machining, casting, and forging

• Once the components have been produced, the manufacturer will machine the components to match your exact specifications
• We work with the manufacturer to ensure that you get precise components and intricate parts
• The products come with intricate passages and contours with consistent and repetitive close tolerances
• All door knobs come with accurate and smooth surfaces. All components come with a 125 micro finish, but a higher finish is achievable.

Manufacturing cluster area: Ningbo (Zhejiang province)

Ningbo is a major industrial hub in China and is one of the oldest cities in the country. It is located in the northeast Zhejiang province of China. The port of Ningbo-Zhoushan is one of the busiest in the world.

It is one of the major producers of home electric appliances in China. Ningbo houses over 3,000 home electrical appliance manufacturers and 10,000 factories producing electrical appliances parts and accessories.

The sectors of textiles, garments, home electric appliances, stationery, plastic machines, auto parts, and high-end mold are thriving in Ningbo. The textile industry in the city accounts for 12% of the total industry output of the city.

Ningbo is a significant auto parts production center in China, with over 2,300 manufacturers. The city is also called the Stationery Capital of China, housing more than 8,000 stationery manufacturers. The mold industry is also very prominent in Ningbo, with over 3,000 manufacturers.

(Source: China Daily)

Application: Aesthetics

Wherever you have doors, you most likely have door knobs. They not only contribute to the aesthetics of the door but also the entire ambiance of your home or office. Besides ensuring your safety and privacy, they also are an essential part of the aesthetics of your decor.

Common issues: Surface finish

Chinese factories use polished stainless steel to manufacture door knobs. You’re assured of a smooth finish with no burrs or edges.

Quality Control

Finished products go through the visual inspection queue to ensure that they meet the quality standards.