10PCS 316 stainless steel flat gasket thickened flat washer Bolt washer lock washer 10m12m16m24

brand

Centrode

 material quality

316 stainless steel

name (of a thing or organization)

316 flat washe

Surface treatment

Not disposed of

Standard

Metric GB national standard

Package description

Plastic bag/carton

size

For example: M3*5*6 (inner diameter 3mm* outer diameter 5mm* thickness 6mm)

名义上的直径

d

dc

h

nominal

Tolerance

nominal

tolerance

1

1.1

+0.12
0

3

-0.25

0.3

1.2

1.3

3.2

-0.3
0

1.4

1.5

3.5

1.6

1.7

4

2

2.2

5

2.5

2.7

6.5

-0.36
0

0.5

3

3.2

+0.16
0

7

4

4.2

9

0.8

5

5.3

10

6

6.4

+0.2
0

12.5

-0.43
0

1.5

8

8.4

17

10

10.5

+0.24
0

21

-0.52
0

2

12

13

24

14

15

28

16

17

30

3

18

19

+0.28
0

34

-0.62
0

20

21

37

22

23

39

24

25

44

4

27

28

50

30

31

+0.34
0

56

-0.74
0

36

37

66

5

42

43

78

7

48

50

92

-0.87

8

Unit: mm gasket specification: inner diameter * outer diameter * thickness of bolt matching how large inner diameter gasket

Question 1

1. Why does stainless steel also be magnetic?

304 stainless steel belongs to austenitic stainless steel. Part or a small amount of austenite is transformed into martensite during cold working.
, martensite is magnetic, so 304 stainless steel is non-magnetic or micro-magnetic. Specifically, Baidu can inquire why 304 stainless steel contains magnetism.

Question 2

two. How to identify authentic 304 stainless steel products?

(1) Support the detection of 304 stainless steel special detection liquid medicine. If it does not change color, it will be authentic 304 stainless steel.
② support chemical composition analysis and spectral analysis.
(3) Support smoke test and simulate actual use environment.

Question 3

3. What kinds of stainless steel are most commonly used?

①. 201 stainless steel, suitable for use in dry environment, easy to rust in water.
② 304 stainless steel, outdoor or humid environment, strong corrosion and acid resistance.
③316 stainless steel, with molybdenum added, has better corrosion resistance and hole corrosion resistance, especially suitable for seawater and chemical media.

Since 2003, stainless steel raw materials have risen all over the world. A kind of “low nickel” low-cost economical stainless steel (containing nickel and Ni1.5-4.5%) austenitic stainless steel has appeared in the domestic market. Its price is about 15%-40% lower than that of 304 stainless steel. Its anti-corrosion and anti-rust ability is relatively low. Barrett products are all austenitic 304 or 316 stainless steel products.