China Manufacturer Price High Precision Size Customized 420 420c 440 440c G10 G16 G28 4mm 5mm 6mm Stainless Steel Ball for Pen

• Customized: Customized
• Certification: ISO
• Standard Parts: Yes
• Universal: Yes
• Type: Adapter Sleeve
• Material: Stainless Steel
• Model NO.: Stainless Steel Ball
• Product Name: Stainless Steel Ball
• Color: Silver
• Tolerance: 1%
• Grade: G10-G1000
• Standard: AISI, SUS
• Size Range: 1.2mm-25.4mm
• Hardness: 58
• Processing Service: Punching
• Feature: Anti-Rust, High Precision
• Invoicing: by Actual Weight
• Delivery Time: 7-10 Days
• Surface Finish: Tshs
• Package: Carton Box+Wooden Case
• Application: Ball Point
• Steel Grade: 420, 420c, 440, 440c
• Transport Package: Sealed Plastic Bags+4 Samll Boxes
• Specification: 0.8-70mm
• Trademark: Feige
• Origin: Jiangsu, China
• HS Code: 8482910000
• Production Capacity: 183 Ton/Tons Per Month

Product Description

Chemical composition

Material

C

Si

Mn

P

S

Ni

Cr

Mo

304

≤0.08

≤1.00

≤2.00

≤0.045

≤0.03

8.0-10.5

18.0-20.0

-

304L

≤0.03

≤1.00

≤2.00

≤0.045

≤0.03

8.0-13.0

18.0-20.0

-

316

≤0.08

≤1.00

≤2.00

≤0.045

≤0.03

10.0-11.0

16.0-18.0

2.0-3.0

316L

≤0.03

≤1.00

≤2.00

≤0.045

≤0.03

10.0-11.0

16.0-18.0

2.0-3.0

420

0.26-0.35

≤1.00

≤1.25

≤0.04

≤0.03

≤0.60

12.0-14.0

-

420C

0.36-0.43

≤0.80

≤0.80

≤0.04

≤0.03

≤0.60

12.0-13.5

-

440

0.90-1.00

≤0.80

≤0.80

≤0.04

≤0.03

≤0.60

16.0-18.0

0.4-0.7

440C

0.95-1.10

≤0.80

≤0.80

≤0.04

≤0.03

≤0.60

16.0-18.0

0.4-0.7

Grade:G10 to G1000
Grade	Ball diameter variation	Deviation from spherical from	Surface roughness	Lot diameter variation	Nominal ball deviation tolerance
		Vdws	△Sph	Ra	Vdwl	Tdn
		not over
		μm
10	0.25	0.25	0.025	0.5	*
16	0.4	0.4	0.032	0.8	*
20	0.5	0.5	0.05	1	*
28	0.7	0.7	0.05	1.5	*
40	1.0	1.0	0.08	2	*
60	1.5	1.5	0.10	3	*
100	2.5	2.5	0.125	5	±12.5
200	5	5	0.5	10	±25
500	13	13	*	25	±50
1000	25	25	*	50	±125

1.Can you provide sample free?
Yes ,we can provide free samples with in 0.5kg.
2.What kind of payment terms you can accept?
We can accept T/T,L/C, Western Union and Paypal.
3.What about your steel ball's quality?
Checking in the whole manufacturing process &100% inspection before shipment ensure the quality of our products.
4.What's your packing method?
A) Inner packing: Dry packing or oil packing are provided according to you needs.
B) Outer packing:
1)volatile rust preventive paper + poly bag + iron drum + wooden / iron pallet.
2)25kg poly bag + carton + wooden pallet or wooden box.
3)customized packing.
5.What's your delivery time?
Within 3-30 days according to your required size and quantity.
6.Is your steel ball competitive?
Yes, We are steel ball manufacture more than 30+ years.