440/440c G10 to G1000 Stainless Bearing Steel Ball, Tungsten Carbide Plastic Ceramic Coated Flying Saucer Solid Half Tool Aluminum Brass/Copper Carbon Balls

Customization:	Available
Customized:	Customized
Certification:	CE, ISO, BV, SGS, Ts 16949

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Basic Specifications

Model NO.440/440C

MaterialStainless Steel

Size Range1mm-180mm

Hardness58-62HRC

GradeG10-G1000

TypeBearing Ball

ApplicationValves, Special Bearings

CharacteristicsMedium Corrosion Resistance

Standard PartsYes

HS Code8482910000

Capacity300ton/Month

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Product Description

Stainless Steel Ball AISI 440C Overview
Material	AISI 440C / SUS 440C / Wks 1.4125
Size Range	1mm - 180mm
Grade	G10 - G1000
Hardness	HRC 57 - 60
Characteristics	Maximum hardness with good corrosion resistance to fresh water; Ferro-magnetic
Magnetic	Strong
Packing	Standard: 10kg/20kg per carton, 1 ton per pallet
Conditioning	Dry or oiled

🧪 Chemical Composition (%)

Element	C%	Si%	Mn%	Cr%	Mo%	P%	S%
Min.	0.95	---	---	16.0	0.4	---	---
Max.	1.2	1.00	1.00	18.0	0.8	0.04	0.015

📏 Precision Grade: G10 to G1000

Grade	Ball Diameter Variation (Vdws)	Spherical Deviation (Sph)	Surface Roughness (Ra)	Lot Diameter Variation (Vdwl)
10	0.25 µm	0.25 µm	0.02 µm	0.5 µm
16	0.4 µm	0.4 µm	0.025 µm	0.8 µm
20	0.5 µm	0.5 µm	0.032 µm	1 µm
40	1 µm	1 µm	0.06 µm	2 µm
100	2.5 µm	2.5 µm	0.1 µm	5 µm
200	5 µm	5 µm	0.15 µm	10 µm

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Production Gallery

Frequently Asked Questions

Q1: What types of metal balls are available?

We provide a wide range of options including Stainless steel balls, Chrome steel balls, Carbon steel balls, Brass balls, Aluminum balls, Copper balls, and various coated balls.

Q2: What are the standard payment terms?

The standard payment terms are T/T 30% as a deposit, with the remaining 70% balance due before delivery.

Q3: Which delivery terms do you support?

We offer multiple delivery options including EXW, FOB, CFR, and CIF to suit your logistics needs.

Q4: What is the typical lead time for an order?

In-stock items are ready within 1-3 days. For custom or large production orders, the specific delivery time usually ranges from 25-30 days depending on the quantity.

Q5: What are the primary applications for AISI 440C stainless steel balls?

These balls are ideal for valves, special bearings, ball pens, and other applications requiring high hardness and moderate corrosion resistance.

Q6: What is the hardness and size range of the 440C balls?

Our 440C balls feature a high hardness range of 58-62HRC and are available in sizes ranging from 1mm up to 180mm.