ISO 898-1
Jun 15,2018

Standar for Bolt

Grade

Bolt Size

Tension Stength

Yield Strength

Proof Load Stress

Enlogation

Hardness

Head Marking

mm

Mpa

Mpa

Mpa

%

4.6


400min

240min

225

22

B67-95

ISO 898-1 2009(DIN931/933)

4.8


420min

340min

310

-

B71-95

5.6


500min

300min

280

20

B79-95

5.8


520min

420min

380

-

B 82-95

6.8


600min

480min

440

-

B 89-99.5

8.8

≤16

800min

640min

580

12

C22-32

>16

830min

660min

600

12

C23-34

10.9


1000min

940min

830

9

C32-39

12.9


1200min

1100min

970

8

C39-44

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