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Product Description
We mainly produce stainless steel balls (440C, 304, 316L, 420, 201), carbon steel balls (1015, 1045, 1085), bearing steel balls (GCR15), copper balls, glass balls, titanium balls, flying saucer balls, polishing balls, and other kinds of hard alloy balls. The product specification is complete. All products are manufactured according to the GB308-2002 standard and measure up to the international standards of ISO3290-1998, AFMBA1989, and DIN5401-93. Our precision ranges from level G10 to level G1000. These products are widely applied in hardware goods for the aviation and spaceflight industry, automobile trade, sprayers, stainless steel bearings, handicrafts, and precision instruments.
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Material Specifications
🔹 201 Stainless Steel Ball
Standards: SISI201, SUS201, 1.4372
Application: Hardware, handicrafts, plastic products, motorcycle parts, luggage, bearings.
Characteristics: Austenitic steel, non-magnetic, low price, excellent performance. Hardness HRC≤28.
🔹 304 Stainless Steel Ball
Application: Medical equipment, chemical, aviation, perfume bottles, sprayers, valves, auto parts, bearings.
Characteristics: Generally non-magnetic (can demagnetize), HRC≤26. Excellent rust and corrosion resistance.
🔹 316 Stainless Steel Ball
Application: Special industries like medical equipment, chemical, aviation, body accessories.
Characteristics: Austenitic steel, HRC≤26. Superior anti-corrosion performance compared to 304.
🔹 420 Stainless Steel Ball
Application: High precision and rust resistance industries: motorcycle parts, pulleys, plastic bearings, valves.
Characteristics: Martensitic steel, magnetic, good rust resistance, high hardness (HRC50-55).
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Packaging & Shipping
Standard Packaging:
A. Steel Drum: 250kg per drum, 4 drums per pallet.
B. Plywood Box: 40 cartons/woven bags per plywood box.
C. Container: Recommended 20"FT container (Max 24 tons).
Shipping Information:
- Sea Freight: 20-25 days.
- Air Freight: 5-7 days.
- Express (DHL, UPS, FEDEX, TNT): 4-6 working days.
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Frequently Asked Questions
Q1: What materials can you provide for the balls?
A: We offer a wide range of materials including stainless steel (201, 304, 316, 420, 440C), carbon steel (1015, 1045, 1085), bearing steel (GCR15), copper, glass, titanium, and hard alloys.
Q2: What is the precision grade of your steel balls?
A: Our products are manufactured to accuracy levels ranging from G10 to G1000, complying with ISO3290 and GB308 standards.
Q3: Are the stainless steel balls magnetic?
A: Austenitic balls like 201, 304, and 316 are generally non-magnetic (though 304 may show slight magnetism after processing). Martensitic balls like 420 are magnetic.
Q4: How long does it take for delivery?
A: Delivery usually takes 20-25 business days for sea freight and 5-7 days for air freight or express delivery.
Q5: Do you provide samples?
A: Yes, we provide free samples to our customers for quality evaluation.
Q6: What are the main applications for these balls?
A: They are widely used in medical equipment, automotive parts, bearings, sprayers, valves, household appliances (like refrigerators and washing machines), and precision instruments.
RPZ Valve
