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High Tensile Fasteners

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Related Keywords for ASTM A193 Grade B16 Bolts : ASTM A193 Grade B16,Grade 16 bolts,Grade B16 bolts,B16 Bolt Material,B16 Studs, Astm b16,B16 Steel bolts,grade b16 etc

B16

A heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service.

Mechanical Properties
Bolt -Grade Identification Markings

Grade

Size

Tensile ksi, min

Yield, ksi, min

Elong, %, min

RA % min

B7

Up to 2-1/2

125

105

16

50

2-5/8 - 4

115

95

16

50

4-1/8 - 7

100

75

18

50

B8 Class 1

All

75

30

30

50

B8M Class 1

All

75

30

30

50

B8 Class 2

Up to 3/4

125

100

12

35

7/8 - 1

115

80

15

35

1-1/8 - 1-1/4

105

65

20

35

1-3/8 - 1-1/2

100

50

28

45

B8M Class 2

Up to 3/4

110

95

15

45

7/8 - 1

100

80

20

45

1-1/8 - 1-1/4

95

65

25

45

1-3/8 - 1-1/2

90

50

30

45

B16

Up to 2-1/2

125

105

18

50

2-5/8 - 4

110

95

17

45

4-1/8 - 7

100

85

16

45

Material Chemical Composition

Element

B7 (AISI 4140)

B8 (AISI 304)

B8M (AISI 316)

B16 (AISI 4140)

Carbon

0.37 - 0.49%

0.08% max

0.08% max

0.37 - 0.49%

Manganese

0.65 - 1.10%

2.00% max

2.00% max

0.65 - 1.10%

Phosphorus, max

0.035%

0.045%

0.045%

0.035%

Sulfur, max

0.040%

0.030%

0.030%

0.040%

Silicon

0.15 - 0.35%

1.00% max

1.00% max

0.15 - 0.35%

Chromium

0.75 - 1.20%

18.0 - 20.0%

16.0 - 18.0%

0.75 - 1.20%

Nickel


8.0 - 11.0%

10.0 - 14.0%


Molybdenum

0.15 - 0.25%


2.00 - 3.00%

0.15 - 0.25%

Recommended Nuts,Bolts & Washer

Bolt Grade

Nuts

Washers

B7

A194 Grade 2H

F436

B8 Class 1

A194 Grade 8

SS304

B8M Class 1

A194 Grade 8M

SS316

B8 Class 2

A194 Grade 8

SS304

B8M Class 2

A194 Grade 8M

SS316