Grade 10.9 Bolts Vs Stainless Steel Bolts

Grade 10.9 bolts are produced from carbon steel. Carbon steels are a relatively cheaper option than any stainless steel alloy. This is because the grade 10.9 hex bolts are alloyed with only carbon and iron. These two elements are cheaper than stainless steel, a metal that is comparably highly alloyed, Bolts made of grade 10.9 carbon steel are safe, especially during storms, tornadoes, earthquakes, and fires. They are also viewed as green because they are an environmentally beneficial material that can be recycled. Fasteners grade 10.9 are also utilised in applications that are susceptible to shocks. Unlike some stainless steel fasteners, it won't come undone because the material is shock-resistant.

Usually, bolts produced in grade 10.9 are tempered and quenched. Because carbon steel has been tempered and quenched, the resultant high strength bolts grade 10.9, becomes increasingly challenging. Due to the greater carbon content, welding carbon steel is typically challenging. However, the alloy becomes exceedingly weldable after being quenched and tempered. Stainless steels are often much lower in carbon content than other types of steel, which makes them simple to weld. However, stainless steels can be altered, especially those from the austenitic classes, by simply reducing their carbon content to improve their weldability. Due to their high carbon content, carbon steels frequently suffer HAZ, or heat affected zone, damage during welding. Due to the modification of stainless steel, there is little chance that weld regions will become sensitised. This indicates that compared to some steels, carbon steels are more sensitive to intergranular corrosion.stainless steel hex head bolts, which depending on their grade tend to range between good to outstanding.

Have difficulty to find Difference between Grade 10.9 Bolts Vs Stainless Steel Bolts? check price, chemical and mechanical properties Difference here

Since stainless steels are alloyed with elements such as molybdenum, chromium, nickel, manganese, silicon, phosphorus, sulfur, copper, tungsten, nitrogen, etc, their properties see an increase, be it their mechanical properties or resistance to corrosion.  The preference for high tensile bolts 10.9 grade is due to the good economical advantage they offer in comparison to the conventional stainless steel such as grade 304 or 316. In instances that demand higher resistance to corrosion, in the form of oxidation, or even pitting, using stainless steel boltsis thought to be a considerably safer wager. Despite stainless steels' increased cost, they more than make up for it with incredible corrosion resistance and exceptional mechanical qualities at high temperatures. Stainless steels deform because they are ductile. In high-pressure conditions, this is advantageous. Unlike brittle carbon steels, which would fracture, the ductility of stainless steel hex bolts, permits them to stretch and expand, thereby accommodating the high pressure needs of the application. Some types of Stainless steel bolts are able to resist corrosion by salt solutions, brine, and seawater, making them ideal for marine engineering applications.

 

Grade 10.9 Bolt Mechanical Properties

Tensile Strength Rm in MPa (N/mm2)

nominal value

1000

minimum

1040

HV  (Vickers Hardness ) =F 98N

minimum

310

maximum

382

HB ( Brinell Hardness ) F=30D2

minimum

295

maximum

363

HR ( Rockwell Hardness )

minimum HRB

minimum HRC

31

maximum HRB

maximum HRC

39

HV ( Surface Hardness ) 0.3

maximum

402

Yield Stress Rel in MPa (N/mm2)

nominal value

minimum

0.2% elongation limit Rp0.2 in Mpa (N/mm2)

nominal value

900

minimum

940

Stress  Test  Sp

Sp/ReL or Rp0.2

0.88

MPA (N/mm2)

830

Elongation after fracture A5 in Percentage

minimum

9

Minimum notch impact energy in Joules

20

Maximum Height of the Thread Zone Not Decarburized E

2/3H1

Maximum Depth of Decarburization Gmm

.015

 

Grade 10.9 Bolt Temperature Rating

Temperature °C

MS

400

AC1

723

AC3

827

 

Grade 10.9 Bolt Chemical Composition

Strength class

Material and heat treatment

Chemical composition (analysis on the product) %

Minimum hardening temperature °C

 

10.9

C

P

S

B

 

min

max

max

max

max

Quenched and tempered carbon steel

0,25

0,55

0,025

0,025

Quenched and tempered alloy steel

0,20

0,55

0,025

0,025

Quenched and tempered carbon steel

0,25

0,55

0,025

0,025

Quenched and tempered alloy steel

0,20

0,55

0,025

0,025

Carbon or alloy steel (B, Mn, Cr), quenched and tempered

0,20(3)

0,55

0,025

0,025

0,003

425

Quenched and tempered carbon steel

0,25

0,55

0,025

0,025

Quenched and tempered alloy steel

0,20

0,55

0,025

0,025

 

Hex Bolts Mechanical Properties

 

Grade 10.9 Hex Head Bolt Properties


Properties

Grade 10.9

Hardness (HRC)

32-39

Tensile Strength in Mpa

1,040 min.

Yield Strength at 0.2% Offset in Mpa

940 min.

Elongation Percentage

9 min.

 

Grade 10.9 Hexagon Flange Bolt Properties

Properties

Grade 10.9

Hardness (HRC)

32-39

Tensile Stress - Mpa

1,040 min.

Yield Strength at 0.2% Offset (Mpa)

940 min.

Elongation (%)

9 min.

 

Socket Head Cap Screw Mechanical Properties

Grade 10.9 DIN 7984 Low Head Socket Cap Screw Properties


Properties

Grade 10.9

Hardness (HRC)

32-39

Tensile Stress - Mpa

832 min.

 

Grade 10.9 DIN 7991 Flat Head Countersunk Socket Cap Screw Properties


Properties

Grade 10.9

Hardness (HRC)

32-39

Tensile Stress - Mpa

835 min.

 

Grade 10.9 ISO 7380 Button Head Socket Cap Screw Properties


Properties

Grade 10.9

Hardness (HRC)

32-39

Tensile Stress - Mpa

835 min.

 

Grade 10.9 Equivalent Material

Material

Grade

High Tensile Stainless Steel

8.8

High Tensile Stainless Steel

12.9

 

10.9 Grade Bolt Price

Grade 10.9 Fasteners Price List

Price Per Piece

Grade 10.9 Socket Head Cap Screw

USD $3.15

Grade 10.9 Allen bolts

USD $4.35

Grade 10.9 Hex bolts

USD $8.05

Grade 10.9 Nuts

USD $1.50

Grade 10.9 Hex Nuts

USD $5.20

Grade 10.9 Washer

USD $1.10

Grade 10.9 Bolts

USD $7.30

 

Grade 10.9 Bolt Weight

THREADS AS PER 1363/67 IN MM

APPROXIMATE WEIGHT IN KILO FOR 100 PIECES.

LENGTH

D I A

M 1.6

M 2

M 2.5

M 2.6

M 3

M 3.5

M 4

M 5

M 6

M 7

M 8

M 10

M 12

3 mm

0.011

0.020

0.037

0.038

 

 

 

 

 

 

 

 

 

4 mm

0.012

0.021

0.040

0.041

0.048

 

 

 

 

 

 

 

 

5 mm

0.013

0.023

0.043

0.044

0.053

0.084

0.126

 

 

 

 

 

 

6 mm

0.014

0.025

0.046

0.047

0.057

0.090

0.133

0.218

0.340

0.543

 

 

 

8 mm

0.016

0.029

0.052

0.054

0.066

0.102

0.149

0.238

0.374

0.593

0.855

 

 

10 mm

0.018

0.033

0.058

0.060

0.075

0.114

0.164

0.263

0.408

0.643

0.910

 

 

12 mm

0.020

0.036

0.064

0.067

0.084

0.126

0.180

0.287

0.442

0.692

0.980

1.920

2.741

16 mm

 

0.042

0.076

0.081

0.100

0.150

0.210

0.337

0.511

0.786

1.110

2.120

3.021

20 mm

 

 

0.088

0.093

0.118

0.173

0.241

0.387

0.580

0.891

1.230

2.320

3.300

25 mm

 

 

0.102

0.109

0.140

0.203

0.280

0.449

0.665

1.010

1.390

2.571

3.660

30 mm

 

 

 

 

 

 

0.319

0.511

0.751

1.140

1.550

2.820

4.023

35 mm

 

 

 

 

 

 

0.357

0.573

0.837

1.260

1.711

3.071

4.382

40 mm

 

 

 

 

 

 

0.396

0.635

0.923

1.390

1.871

3.320

4.744

45 mm

 

 

 

 

 

 

0.434

0.699

1.010

1.510

2.030

3.571

5.102

50 mm

 

 

 

 

 

 

0.473

0.759

1.100

1.640

2.181

3.823

5.453

55 mm

 

 

 

 

 

 

0.512

0.821

1.190

1.761

2.341

4.072

5.814

60 mm

 

 

 

 

 

 

0.550

0.883

1.270

1.880

2.500

4.333

6.173

65 mm

 

 

 

 

 

 

0.589

0.945

1.360

2.010

2.661

4.583

6.536

70 mm

 

 

 

 

 

 

0.628

1.010

1.440

2.130

2.820

4.831

6.897

 

LENGTH

D I A

M 1.6

M 2

M 2.5

M 2.6

M 3

M 3.5

M 4

M 5

M 6

M 7

M 8

M 10

M 12

                           

75 mm

 

 

 

 

 

 

 

1.070

1.530

2.260

2.982

5.081

7.257

80 mm

 

 

 

 

 

 

 

1.130

1.620

2.381

3.141

5.330

7.610

85 mm

 

 

 

 

 

 

 

 

1.700

2.510

3.300

5.580

7.974

90 mm

 

 

 

 

 

 

 

 

1.790

2.630

3.460

5.834

8.333

100 mm

 

 

 

 

 

 

 

 

1.961

2.880

3.771

6.337

9.058

110 mm

 

 

 

 

 

 

 

 

2.128

 

4.092

6.849

9.785

120 mm

 

 

 

 

 

 

 

 

2.500

 

4.464

7.342

10.504

130 mm

 

 

 

 

 

 

 

 

2.632

 

4.808

7.849

11.211

140 mm

 

 

 

 

 

 

 

 

2.778

 

5.102

8.347

11.905

150 mm

 

 

 

 

 

 

 

 

2.941

 

5.376

8.850

12.626

160 mm

 

 

 

 

 

 

 

 

 

 

 

9.009

12.987

170 mm

 

 

 

 

 

 

 

 

 

 

 

9.346

13.889

180 mm

 

 

 

 

 

 

 

 

 

 

 

10.204

14.706

190 mm

 

 

 

 

 

 

 

 

 

 

 

 

15.385

200 mm

 

 

 

 

 

 

 

 

 

 

 

11.111

16.129

220 mm

 

 

 

 

 

 

 

 

 

 

 

 

17.668

250 mm

 

 

 

 

 

 

 

 

 

 

 

13.699

20.000

300 mm

 

 

 

 

 

 

 

 

 

 

 

 

22.936

 

Grade 10.9 Bolt Dimensions
hex-bolts-dimensions.jpg

 

Diameter

M8

M5

M4

M6

M14

M16

M12

M10

M18

M20

M22

M24

M27

M30

M33

M36

M39

M42

M45

M48

M52

Thread Length  For lengths < or = 125mm For lengths > 125mm <= 200mm For lengths > 200mm

22

16

14

18

34

38

30

26

42

46

50

54

60

66

Not specified as full thread recommended

28

22

20

24

40

44

36

32

48

52

56

60

66

72

78

84

90

96

102

108

116

41

35

33

37

53

57

49

45

61

65

69

73

79

85

91

97

103

109

115

121

129

upto length Grade A

80

50

40

60

140

150

120

100

       

Grade A not applicable to these diameter

Max Min Gr A Gr B

13

8

7

10

21

24

18

16

27

30

34

36

41

46

50

55

60

65

70

75

80

12.73

7.78

6.78

9.78

20.67

23.67

17.73

15.73

26.67

29.67

33.38

35.38

Grade A not applicable to these diameter

12.57

7.64

6.64

9.64

20.16

23.16

17.57

15.57

26.16

29.16

33

35

40

45

49

53.8

58.8

63.1

68.1

73.1

78.1

Across corners  Minimum Gr A Gr B

11.05

7.66

8.79

20.03

23.36

17.77

14.38

26.75

30.14

33.53

37.72

39.98

Grade A not applicable to these diameter

Major Diameter at thread (minimum)

7.76

4.826

3.838

5.794

13.682

15.682

11.701

9.732

17.623

19.623

21.623

23.577

26.577

29.522

32.522

35.465

38.465

41.437

44.437

47.399

51.399

Maximum Diameter at thread

7.972

4.976

3.978

5.974

13.962

15.962

11.966

9.968

17.958

19.958

21.958

23.952

26.952

29.947

32.947

35.94

38.94

41.937

44.937

47.929

51.929

Pitches

1.25

0.8

0.7

1

2

 

1.75

1.5

2.5

3

3.5

4

4.5

5

Head Height (K) Nom Tol more or less Grade A Grade B

5.3

3.5

2.8

4

8.8

10

7.5

6.4

11.5

12.5

14

15

17

18.7

21

22.5

25

26

28

30

33

14.2

8.63

7.5

10.89

22.78

26.17

19.85

17.59

29.56

32.95

37.29

39.55

45.2

50.85

55.37

60.79

66.44

71.3

76.95

82.6

88.25

 

Stainless Steel and Grade 10.9 Bolt Size Chart

Stainless Steel and Grade 10.9 Bolt Size Chart

 

10.9 Bolt Application
  • Frame applications such as truck and bed frames.
  • Broad range of use such as construction and repair of bridges, docks, highway elements and buildings.
  • Used in connect heavy materials that are bearing extreme loads.
  • Pulleys, moving engine parts and mechanical assemblies, gears and rolling wheels.
  • Fasten metal to wood.

 

Stainless Steel Bolts Chemical Composition

AISI

Chemical Composition (% max )

C

Si

Mn

P

S

Cr

Mo

Ni

Cu

SS 202

0.12

1.0

6.5

0.20

0.15-0.35

16,0 - 19,0

0.7

5,0 - 10,0

1.75-2.25

SS 304

0.08

1.0

2.0

0.05

0.03

15,0 - 20,0

0.0

8,0 - 19,0

4.0

SS 310

0.25

1.50

2.00

0.045

0.030

24.00 - 26.00

19.00 - 22.00

SS 310S

0.08

1.50

2.00

0.045

0.030

24.00 - 26.00

19.00 - 22.00

SS 321

0.08

1.0

2.0

0.05

0.03

17,0 - 19,0

0.0

9,0 - 12,0

1.0

SS 316

0.08

1.0

2.0

0.05

0.03

16,0 - 18,5

2,0 - 3,0

10,0 - 15,0

4.0

SS 410

0.09-0.15

1.0

1.0

0.05

0.03

11,5 - 14,0

-

1

-

SS 431

0.17-0.25

1.0

1.0

0.04

0.03

16,0 - 18,0

-

1,5 - 2,5

-

SS 416

0.08-0.15

1.0

1.5

0.06

0.15-0.35

12,0 - 14,0

0.6

1

-

SS 430

0.12

1.0

1.0

0.04

0.03

15,0 - 18,0

0.0

1

-

SS 904L

0.02

1

2

0.045

0.035

19 - 23

5

28

2

 

304 Stainless Steel Bolts Mechanical Properties

Grade

Tensile Stress - Mpa min

Yield Strength 0.2% Proof (MPa) minimum

Elongation (% in 50mm) min

Hardness

Rockwell B (HR B) max

Brinell (HB) max

304

515

205

40

92

201

304L

485

170

40

92

201

304H

515

205

40

92

201

 

316 Stainless Steel Bolt Mechanical Properties

Grade

Tensile Stress - Mpa min

Yield Strength
0.2% Proof
(MPa) min

Elong
(% in 50mm) min

Hardness
Rockwell B (HR B) max

Brinell (HB) max

316

515

205

40

95

217

316L

485

170

40

95

217

316H

515

205

40

95

217

 

Stainless Steel 310 Bolts Mechanical Properties

Mechanical Properties

310/ 310S

Grade 0.2 % Proof Stress MPa (min)

205

Tensile Strength MPa (min)

520

Elongation % (min)

40

Hardness (HV) (max)

225

 

Stainless Steel 321 Bolts Mechanical Properties

Grade

Tensile Stress - Mpa min

Yield Stress 0.2% Proof (MPa) minimum

Elongation (% in 50 mm) minimum

SS Bolts Hardness ratings

Rockwell B (HR B) maximum

Brinell (HB) maximum

321 SS

515

205

40

95

217

321H SS

515

205

40

95

217

347 SS

515

205

40

92

201

 

410 Stainless Steel Bolts Mechanical Properties

 

Grade

Tensile Stress - Mpa

Yield Strength 0.2% Proof (MPa)

Elongation (% in 50 mm)

Hardness Brinell (HB)

Impact Charpy V (J)

 

410

1475

1005

11

400

30

 

904L Stainless Steel Bolts Mechanical Properties

Grade

Tensile Stress - Mpa min

Yield Strength 0.2% Proof (MPa) minimum

Elongation (% in 50mm) min

Hardness

Rockwell B (HR B)

Brinell (HB)

904L

490

220

36

70-90 typical

150

 

Stainless Steel Bolt Weight Chart

BOLT THREADS AS PER 1363/67 IN MM

APPROXIMATE WEIGHT IN KILOGRAMS FOR 100 PIECES

LENGTH

DIA.

M 5

M 6

M 8

M 10

M 12

M 14

M 16

M 18

M 20

M 22

16 mm

0.448

0.743

1.590

3.211

20 mm

0.598

0.812

1.711

3.411

4.892

25 mm

0.660

0.897

1.871

3.660

5.252

8.170

30 mm

0.737

1.010

2.070

3.912

5.574

9.690

10.707

18.657

35 mm

0.804

1.120

2.271

4.223

5.974

10.000

11.416

16.026

19.608

40 mm

0.881

1.230

2.470

4.533

6.410

10.288

12.107

16.667

20.747

45 mm

0.958

1.340

2.671

4.840

6.859

10.504

12.821

17.241

21.739

50 mm

1.030

1.450

2.870

5.155

7.299

11.261

13.624

17.857

22.727

28.409

55 mm

1.560

3.071

5.464

7.740

11.628

14.409

18.868

23.810

30.120

60 mm

1.670

3.270

5.774

8.183

12.255

15.244

20.000

25.126

32.051

65 mm

1.781

3.472

6.083

8.621

12.626

16.026

21.008

26.455

34.014

70 mm

1.890

3.671

6.394

9.058

12.987

16.835

22.124

27.778

35.461

75 mm

2.000

3.873

6.702

9.506

13.228

17.606

23.256

29.070

39.063

80 mm

2.111

4.072

7.013

10.000

13.889

18.248

24.510

30.303

40.000

90 mm

4.472

7.634

10.917

14.925

19.841

26.042

33.113

41.667

100 mm

4.873

8.251

11.820

16.340

21.459

27.778

35.714

46.296

110 mm

8.881

12.723

17.730

23.041

31.250

38.168

47.170

120 mm

9.506

13.624

18.797

24.631

32.895

40.984

50.000

130 mm

10.101

14.535

20.000

26.316

34.722

43.478

52.632

140 mm

10.707

15.432

20.833

27.933

35.461

46.296

55.556

150 mm

11.312

16.340

22.222

29.412

37.594

48.544

58.824

160 mm

11.905

17.241

24.272

31.056

40.984

50.505

61.728

170 mm

12.500

18.116

32.680

53.191

64.935

180 mm

13.123

19.011

26.882

34.247

55.556

67.568

190 mm

13.736

19.920

35.971

58.140

70.423

200 mm

14.327

20.833

29.586

37.594

49.020

60.976

73.529

220 mm

15.528

22.624

40.650

65.789

79.365

240 mm

16.722

24.510

43.860

71.429

84.746

250 mm

17.301

25.381

45.455

74.627

87.719

260 mm

17.921

26.316

47.170

76.923

90.909

280 mm

19.157

28.090

50.505

81.967

98.039

300 mm

20.325

29.940

53.763

87.719

104.167

320 mm

31.646

56.818

92.593

340 mm

33.557

60.241

98.039

360 mm

35.211

63.291

104.167

380 mm

37.037

66.667

108.696

400 mm

39.063

69.444

113.636

 

Stainless Steel Bolt Size and Grade Chart

Screws Type

GR

SIZES

ASME

ASTM

ISO

Socket Head Shoulder Screws

012.9

M6 to M24

B18.3.3M

Countersunk Socket Head Screws

012.9

M3 to M20

B18.3.5M

F835M

10642

Button Head Socket Screws

012.9

M3 to M12

B18.3.4M

F835M

7380

Dog Point Socket Set Screws

45H

M3 to M20

B18.3.6M

F912M

4028

Socket Low Head Cap Screws

10.9

M4 to M20

Flange Button Head Socket Screws

012.9

M3 to M10

F835M

Knurled Point Socket Set Screws

45H

M3 to M20

B18.3.6M

F912M

4029

Plain Point Socket Set Screws

45H

M3 to M20

B18.3.6M

F912M

4029

Flat Point Socket Set Screws

45H

M6 to M12

B18.3.6M

F912M

4026

Cone Point Socket Set Screws

45H

M3 to M12

B18.3.6M

F912M

4027

Socket Head Cap Screws

12.9

M1.6 to M64

B18.3.1 M

A574M

4762

Taper Pressure Plug

-

M8 to M22

 

Stainless Steel Bolt Price List

1 in

Fully Threaded

ASME B18.21, SS304

0.4375 in

$204.00 / pkg. of 1,300

1 in

Fully Threaded

ASME B18.21, SS304

0.4375 in

$16.50 / pkg. of 100

1 1/4 in

Fully Threaded

ASME B18.21, SS304

0.4375 in

$208.00 / pkg. of 1,100

1 1/4 in

Fully Threaded

ASME B18.21, SS304

0.4375 in

$19.80 / pkg. of 100

1 1/2 in

Fully Threaded

ASME B18.21, SS316

0.4375 in

$222.00 / pkg. of 1,000

1 1/2 in

Fully Threaded

ASME B18.21, SS304

0.4375 in

$23.50 / pkg. of 100

1 3/4 in

Fully Threaded

ASME B18.21, SS316

0.4375 in

$193.00 / pkg. of 800

1 3/4 in

Fully Threaded

ASME B18.21, SS304

0.4375 in

$25.50 / pkg. of 100

2 in

Fully Threaded

ASME B18.21, SS316

0.4375 in

$222.00 / pkg. of 750

 

Stainless Steel Bolts Application
  • steam or tray valves, pump shafts, Nut bolts, turbine blades, and other parts for better corrosion resistance and up to 540°C (1000°F) strength.
  • Culinary uses, Kitchen sinks, Cutlery, Cookware.
  • Surgical tools and medical equipment like Hemostats and Surgical implants.
  • Architecture Bridges, Monuments and sculptures.
  • Automotive and aerospace applications like Auto bodies and Rail cars.

 

Stainless Steel Fasteners Temperature Range

Grade

Range

304

425-860 °C

316

1,371 °C – 1,399 °C

330

940 °C – 1040 °C