1. Established in 1998. Has 20 years of experience in production and marketing.
2. Possesses SGS/ROHS certification and an excellent management team.
3. Advanced production and testing equipment.
4. Fixed assets of over 10 million yuan.
5. Technical personnel with more than 10 years of production experience.
6. Our warehouse is located in a national AAAAA-level logistics park, which offers large inventory and fast delivery.
Based on 7.40% of domestic market sales.
8. High reputation, with a large number of customers from all over the world.
We sincerely look forward to establishing partnerships with any client at any time.
Stainless steel balls, stainless steel balls:
Material: 440C, 440, 420, 316L, 316, 304, 302, 204
Specifications: 0.3 mm - 50.8 mm;
Levels: G10-G1000;
SUS304: Possesses excellent corrosion resistance, heat resistance, low-temperature strength, and mechanical properties. It exhibits good hot workability, including stamping and bending, and does not harden under heat treatment. It is non-magnetic. Widely used in household goods (Class 1 and 2 tableware), cabinets, indoor piping, water heaters, boilers, bathtubs, automotive parts, medical devices, building materials, chemicals, food industry, agriculture, and ship parts.
440C/AISI 440C stainless steel ball :
Application areas:
It is commonly used in industries such as motor parts, pulleys, stainless steel ball bearings, plastic bearings, artifacts, petroleum, and valves.
Function:
High precision
Good magnetism
Good rust prevention performance
It has the highest hardness, HRC50-55.
Chemical and physical composition of 440C/AISI 440C stainless steel balls
| C | 0.26-0.35% |
| Cr | 12.0-14.0% |
| Si | 1.00% |
| Mn | Maximum 1.0%. |
| P | 0.035% |
| S | 0.030% |
| Mo | --------- |
| Strength extension | 280,000 psi |
| Yield strength | 270,000 psi |
| elastic modulus | 29,000,000 psi |
| density | 0.275 lbs/cubic inch |
Photo shows
Packaging details: Carton packaging, woven bags, cartons + pallets, rollers, or packaging according to customer requirements.
Delivery details: 3-5 days after order, depending on order quantity.
Our certification
Production process
Steel ball testing
The hardness of steel balls is generally tested using a Rockwell hardness tester, and is usually expressed as HRC+ value.
1. The hardness of bearing steel balls is generally HRC60-66;
2. The hardness of stainless steel balls is generally around HRC26;
3. The hardness of carbon steel balls is generally HRC55-65;
4. The hardness of a soft carbon steel ball is approximately HRC30;
G5 and G10 high-precision steel balls are mainly used to measure ellipticity, that is, the spherical error of the ball, which is mainly detected by a roundness meter. Through its measurement, a computer can draw a very precise trajectory, thereby determining whether the ellipticity is correct.
The most important aspect of measuring steel balls is the tolerance, which is checked using a micrometer or a spiral micrometer. Large steel balls are measured using vernier calipers.
Other main products of Kangdaer Steel Ball Factory are as follows:
1. Stainless steel balls, stainless steel balls, stainless steel balls:
1. Materials: 201, 202, 302, 303, 304, 316, 316L, 420, 440, 440C, etc.;
2. Specifications: 0.5 mm - 50.8 mm;
3. Level: G10-----G1000;
2. Bearing steel balls, chrome steel balls, ball bearings, chrome steel balls, bearing steel balls:
1. Material: GCr15 440 440c;
2. Specifications: 0.5 mm - 200 mm
3. Level: G10----G1000;
3. Miniature steel balls, small steel balls, tiny steel balls:
1. Materials:
Stainless steel (201, 304, 316, 316L, 420, 440, 440C);
GCr15 bearing steel;
Carbon steel 1010, 1015, Q235, A3, C15;
2. Specifications: 0.3 mm - 2.5 mm
0.3 mm, 0.35 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.2 mm, 1.25 mm, 1.30 mm, 1.35 mm, 1.40 mm, 1.45 mm, 1.50 mm, 1.588 mm, 1.60 mm
1.65 mm, 1.75 mm, 2.0 mm, 2.381 mm, 2.5 mm;
3. Levels: G10-G1000;
4. Extra-large bearing steel balls, large steel balls, extra-large steel balls:
1. Extra-large bearing steel ball specifications: 30mm-265mm
2. Specific specifications of the dedicated GCR15 steel balls:
30 mm, 30.163 mm, 31 mm, 31.75 mm, 32 mm, 33.338 mm, 34 mm, 35 mm, 34.925 mm, 36.513 mm, 38.1 mm, 39.688 mm, 40 mm, 41.275 mm, 42.863 mm, 44.45 mm, 4 5 mm, 47.625 mm, 50 mm, 50.8 mm, 53.975 mm, 55 mm, 57.15 mm, 60 mm, 60.325 mm, 63.5 mm, 69.85 mm, 70 mm, 75 mm, 76.2 mm, 80 mm, 88.9 mm, 90 mm, 100 mm, 101.6 mm, 110 mm, 115 mm, 120 mm, 125 mm, 127 mm, 130 mm, 135 mm, 140 mm, 145 mm, 150 mm, 152.4 mm, 155 mm, 160 mm, 165 mm, 170 mm, 175 mm, 180 mm, 190 mm, 200 mm, 250 mm, 265 mm
3. Bearing steel ball material:
GCr15 AISI52100 SUJ2 100CR6;
5. Drilling steel ball:
We specialize in drilling and machining carbon steel and stainless steel balls with a diameter of 1.0mm or larger.
6. Electroplated steel balls:
Professional electroplating of steel balls with a diameter of 0.8mm or larger, available in gold, silver, zinc, nickel, and chromium.
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7. Ceramic balls:
We offer competitive prices on ceramic balls ranging from 1.0mm to 100mm in various materials, primarily silicon nitride (Si3N4), silicon carbide (SiC), and zirconium oxide (ZrO2).
8. Bronze ball:
Primarily produced from raw materials H62/H65, these are known as brass balls and copper beads. This material is soft, has low hardness, is easy to process, and has a wide range of applications. Main specifications range from 0.8 mm to 30 mm.
