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Ningbo Long I Metal Industry Co.,Ltd.
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You are in: HOME > Technical Information > Mechanical Property and Chemical Requirements (Composition) > ASTM A 193/A 193M Alloy Steel and Stainless Steel Bolting Materials for High Temperature Service |
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| ASTM A 193/A 193M - 05 TABLE 1 Chemical Requirements (Composition, Percent) |
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Type
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Ferritic Steels
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Austenitic Steels, Class 1,1A,1D and 2
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Grade . .
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B6
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B7,B7M
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B16
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B8,B8A
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B8M, B8MA
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B8P,B8PA
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B8T,B8TA
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UNS Designation ..
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S 41000 (410)
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Cr-Mo Alloy
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Cr-Mo-Va
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S 30400 (304)
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S 31600 (316)
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S 30500
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S 321000 (321)
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Range
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Carbon, max
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0.08-0.15
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0.37-0.49
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.36-.47
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0.08
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0.08
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0.12
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0.08
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Manganese, max
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1.00
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0.65-1.10
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.45-.70
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4.00
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2.00
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2.00
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2.00
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Phosphorus, max
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0.040
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0.035
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0.035
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0.045
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0.045
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0.045
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0.045
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Sulfur, max
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0.030
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0.040
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0.040
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0.030
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0.03
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0.03
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0.030
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Silicon, max
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1.00 max
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0.15-0.35
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0.15-0.35
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1.00
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1.00
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1.00
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1.00
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Chromium
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11.5-13.5
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0.75-1.2
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.80-1.15
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18.0-20.0
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16.0-18.0
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17.0-19.0
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17.0-19.0
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Nickel
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8.0-11.0
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10.0-14.0
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11.0-13.0
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9.0-12.0
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Molybdenum
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0.15-0.25
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.50-.65
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2.00-3.00
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Titanium
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Va:0.25-0.35
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5X(C+n)min,0.70 max
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| ASTM A 193/A 193M - 05 TABLE 2 Mechanical Requirements - Inch Products |
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Grade Diameter, in.
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| Heat Treatment Minimun Tempering Temperature, |
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| Tensile Strength,min, ksi |
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| Yield Strength, min, 0.2% offset,ksi |
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Ferritic Steels
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B6 up to 4, incl
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1100°F
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110
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85
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15
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50
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B7 2 1/2 and under
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1100°F
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125
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105
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16
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50
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321 HB or 35 HRC
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over 2 1/2 to 4
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1100°F
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115
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95
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16
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50
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321 HB or 35 HRC
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over 4 to 7
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1100°F
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100
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75
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18
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50
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321 HB or 35 HRC
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B7M 4 and under
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1150°F
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100
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80
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18
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50
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235 HB or 99 HRB
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over 4 to 7
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1150°F
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100
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75
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18
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50
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235 HB or 99 HRB
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B16 2 1/2 and under
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1200°F
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125
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105
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18
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50
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321 HB or 35 HRC
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over 2 1/2 to 4
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1200°F
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110
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95
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17
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45
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321 HB or 35 HRC
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over 4 to 7
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1200°F
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100
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85
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16
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45
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321 HB or 35 HRC
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Austenitic Steels
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Class 1: B8, B8M, B8P, B8T
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carbide solution treated
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75
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30
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30
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50
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223HB or 96HRB
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Class 1A: B8A, B8MA, B8PA,B8TA
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carbide solution treated in the finished condition
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75
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30
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30
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50
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192 HB or 90HRB
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Class 2: B8, B8P, B8T,
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carbide solution treated and strain hardened
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3/4 and under
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125
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100
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12
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35
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321HB or 35HRC
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over 3/4 to 1, incl
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115
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80
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15
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35
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321HB or 35HRC
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over 1 to 1 1/4 , incl
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105
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65
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20
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35
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321HB or 35HRC
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over 1 1/4 to 1 1/2 , incl
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100
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50
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28
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45
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321HB or 35HRC
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Class 2: B8M
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carbide solution treated and strain hardened
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3/4 and under
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110
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95
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15
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45
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321HB or 35HRC
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over 3/4
to 1, incl
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100
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80
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20
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45
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321HB or 35HRC
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over 1 to 1 1/4 , incl
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95
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65
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25
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45
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321HB or 35HRC
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over 1 1/4 to 1 1/2 , incl
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90
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50
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30
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45
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321HB or 35HRC
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| ASTM A 193/A 193M - 05 TABLE 3 Mechanical Requirements - Metric Products |
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Grade Diameter, mm.
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| Heat Treatment Minimun Tempering Temperature, |
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| Tensile Strength,min, ksi |
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| Yield Strength,min, 0.2 % offset, Mpa |
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Ferritic Steels
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B6 up to M100, incl
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593℃
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760
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585
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15
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50
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B7 M64 and under
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593℃
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860
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720
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16
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50
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321 HB or 35 HRC
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over M64 to M10
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593℃
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795
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655
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16
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50
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321 HB or 35 HRC
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over M100 to M180
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593℃
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690
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515
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18
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50
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321 HB or 35 HRC
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B7M M100 and under
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620℃
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690
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550
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18
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50
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235 HB or 99 HRB
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over M100 to M180
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620℃
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690
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515
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18
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50
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235 HB or 99 HRB
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B16 M64 and under
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650℃
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860
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725
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18
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50
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321 HB or 35 HRC
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over M64 to M100
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650℃
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760
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655
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17
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45
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321 HB or 35 HRC
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over M100 to M180
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650℃
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690
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586
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16
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45
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321 HB or 35 HRC
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Austenitic Steels
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Class 1: B8, B8M, B8P, B8T
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carbide solution treated
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515
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205
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30
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50
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223HB or 96HRB
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Class 1A: B8A, B8MA, B8PA,B8TA
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carbide solution treated in the finished condition
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515
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205
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30
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50
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192 HB or 90HRB
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Class 2: B8, B8P, B8T,
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carbide solution treated and strain hardened
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M20 and under
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860
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690
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12
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35
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321HB or 35HRC
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over M20 to M24, incl
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795
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550
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15
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35
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321HB or 35HRC
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over M24 to M30, incl
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725
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450
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20
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35
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321HB or 35HRC
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over M30 to M36, incl
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690
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345
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28
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45
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321HB or 35HRC
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Class 2: B8M
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carbide solution treated and strain hardened
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M20 and under
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760
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655
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15
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45
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321HB or 35HRC
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over M20 to M24, incl
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690
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550
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20
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45
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321HB or 35HRC
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over M24 to M30, incl
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655
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450
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25
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45
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321HB or 35HRC
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over M30 to M36, incl
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620
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345
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30
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45
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321HB or 35HRC
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