Stainless Steel Ball G25 7mm 10mm for Chemical Pump

Basic Information

Model NO.

429

Type

Bearing Ball

Material

Stainless Steel

Size

2-25.4mm

Grade

G10-G1000

Hardness

HRC 26 / HRC 50-55

Surface

High Polished

Application

Furniture, Electrical Appliances, Medical Equipment

Product Overview

We specialize in producing high-quality stainless steel balls including 440C, 304, 316L, 420, and 201 series. Our production line also covers carbon steel balls (1015, 1045, 1085), bearing steel balls (GCR15), copper balls, glass balls, titanium balls, and various hard alloy balls. All products are manufactured according to GB308-2002 standards and comply with international ISO3290-1998, AFMBA1989, and DIN5401-93 standards. Our precision ranges from G10 to G1000, serving industries like aviation, automotive, precision instruments, and medical hardware.

Material Specifications

201 Stainless Steel Ball

Standard: AISI 201, SUS201, 1.4372

Application: Hardware, handicrafts, plastic products, lamps, switches, motorcycle parts.

Characteristics: Austenitic steel, non-magnetic, cost-effective. Hardness HRC ≤ 28.

304 Stainless Steel Ball

Application: Medical equipment, chemical, aerospace, perfume bottles, sprayers, valves, auto parts.

Characteristics: Excellent rust and corrosion resistance. Generally non-magnetic. Hardness HRC ≤ 26.

316 Stainless Steel Ball

Application: High-demand industries, chemical equipment, body accessories, mobile phone boards.

Characteristics: Superior anti-corrosion performance compared to 304. Hardness HRC ≤ 26.

420 Stainless Steel Ball

Application: Precision bearings, motorcycle parts, pulleys, valves, petroleum industry.

Characteristics: Martensitic steel ("Stainless Iron"), magnetic, high wear resistance. Hardness HRC 50-55.

Packaging & Logistics

Standard Packaging:
A. Steel Drums: 250kg per drum, 4 drums per pallet.
B. Plywood Boxes: 40 cartons per plywood box.
C. Container: 20"FT container can load up to 24 tons.

Shipping Times:
- Sea Freight: 20-25 days
- Air Freight: 5-7 days
- Express (DHL/UPS/FedEx): 4-6 working days

Quality Certifications

Our manufacturing processes are certified under ISO 9001 and IATF 16949 quality management systems, ensuring consistent precision and reliability for every batch.

Frequently Asked Questions

Q: What is the main difference between 304 and 316 stainless steel balls?

A: While both are austenitic and non-magnetic, 316 steel balls contain molybdenum, which provides significantly better corrosion resistance, especially in chloride or acidic environments.

Q: Are the 420 series stainless steel balls magnetic?

A: Yes, 420 series balls are martensitic stainless steel, commonly known as stainless iron, and they possess magnetic properties along with high hardness (HRC 50-55).

Q: Can I get free samples before placing a bulk order?

A: Yes, we provide free samples for quality evaluation. Please contact us to confirm the specifications you need.

Q: What precision grades do you provide?

A: We offer a wide range of precision from G10 (highest precision) up to G1000, suitable for everything from precision instruments to basic furniture hardware.

Q: Do you support customized sizes?

A: Yes, we offer customization services for different sizes, materials, and grades to meet specific industrial requirements.

Q: What are the payment terms for international orders?

A: We accept various payment methods including Bank Transfer (T/T), Western Union, and Cash. Typically, balance payment is required before delivery.