DIN 6921 Hexagon flange bolts with standard design - Hebei Tongfa Railway Group Minghao Co.,Ltd

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DIN 6921 Hexagon flange bolts with standard design

FOB Reference Price：Get Latest Price

≥1piece US $1400.00

Material：

Steel

Marks：

2H-A194/194M

Grade：

Class 4.8, Class 5.8, Class 6.8, Class 8.8, Class10.9

Finshing：

Black

Specifications：

M20×30(P2.5) All 1 Options

Quantity：

Payment Terms：

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3453883266

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Product Details
Dimensional Drawing
3D Model

Basic Info

Standard

DIN 6921

Material

Steel

Marks

2H-A194/194M

Surface Treatment

Black

Thread

M-thread

Ex-drive

Hex with flange

Shank

Full thread

Brand

TLD

Unit

piece

Performance Grade

Class 4.8, Class 5.8, Class 6.8, Class 8.8, Class10.9

Performance Grade

Class 4.8Class 5.8Class 6.8Class 8.8Class10.9

Tensile Nom

400MPa

Tensile min

420MPa

Yield strength Nom

340MPa

Yield strength min

340MPa

Proof load Nom

310MPa

Vickers hardness F no less than 38N min

130HV

Vickers hardness F no less than 38N max

220HV

Brinell hardness F=30D^2 min

124HB

Brinell hardness F=30D^2 max

209HB

Rockwell hardness min

71HRB

Rockwell hardness max

95HRB

Tensile Nom

500MPa

Tensile min

520MPa

Yield strength Nom

420MPa

Yield strength min

420MPa

Proof load Nom

380MPa

Vickers hardness F no less than 38N min

160HV

Vickers hardness F no less than 38N max

220HV

Brinell hardness F=30D^2 min

152HB

Brinell hardness F=30D^2 max

209HB

Rockwell hardness min

82HRB

Rockwell hardness max

95HRB

Tensile Nom

600MPa

Tensile min

600MPa

Yield strength Nom

480MPa

Yield strength min

480MPa

Proof load Nom

440MPa

Vickers hardness F no less than 38N min

190HV

Vickers hardness F no less than 38N max

250HV

Brinell hardness F=30D^2 min

181HB

Brinell hardness F=30D^2 max

238HB

Rockwell hardness min

89HRB

Rockwell hardness max

99.5HRB

Tempering temperature min

425℃

Tensile Nom

900MPa

Tensile min

900MPa

Yield strength Nom

720MPa

Yield strength min

720MPa

Proof load Nom

650MPa

Elongation after fracture of machined test pieces min

10%

Percentage reduction of area after fracture, Machined test pieces min

48%

Vickers hardness F no less than 38N min

290HV

Vickers hardness F no less than 38N max

360HV

Brinell hardness F=30D^2 min

286HB

Brinell hardness F=30D^2 max

355HB

Rockwell hardness min

37HRC

Rockwell hardness max

当采用HV0.3测定表面硬度及芯部硬度时，紧固件表面硬度不应比芯部硬度高出30HVHRC

Surface hardness and Core hardness HV0.3

Hardness decrease of retempering max

20HV

Absorbed energy min

27J

Material Description

2H-A194/194M

C min

0.4%

Mn max

P max

0.04%

S max

0.05%

Si max

0.4%

Surface Treatment

Black

Code

Black

Description

Oily surface, black

Thickness

Appearance

Black

NSSWhiteRust

NSSRedRust

Product Description

Hexagon socket head bolts

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