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ASTM B134 Specification

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Scope

ASTM B134 specification establishes requirements for round, hexagonal, octagonal, rectangular and square brass wire of UNS Alloy Nos. C21000, C22000, C22600, C23000, C23400, C24000, C26000, C27000, and C27400.

Related Specifications of ASTM B134

ASTM B134 Chemical Composition

Copper Alloy UNS No. Composition, %
Cu Pb, max Fe, max Zn
C21000 94.0-96.0 0.05 0.05 remainder
C22000 89.0-91.0 0.05 0.05 remainder
C22600 86.0-89.0 0.05 0.05 remainder
C23000 84.0-86.0 0.05 0.05 remainder
C23400 81.0-84.0 0.05 0.05 remainder
C24000 78.5-81.5 0.05 0.05 remainder
C26000 68.5-71.5 0.07 0.05 remainder
C27000 63.0-68.5 0.10 0.07 remainder
C27400 61.0-64.0 0.10 0.05 remainder

ASTM B134 Mechanical Requirements

Grain Size Requirements and Approximate Rockwell Hardness Values for Annealed Wire

Temper Designation Grain Size, mm Approximate Rockwell Hardness
for Rectangular WireA
F Scale 30-T Scale
Standard B 601 Nominal Min Max Min Max Min Max
C21000
OS050 0.050 0.035 0.090 40B 52B ... 4
OS035 0.035C 0.025 0.050 47B 54B ... 7
OS025 0.025 0.015 0.035 50B 61B 1 17
OS015 0.015C D 0.025 54B 65B 7 23
C22000
OS050 0.050 0.035 0.090 50 60 1 16
OS035 0.035C 0.025 0.050 54 64 7 21
OS025 0.025 0.015 0.035 58 70 13 31
OS015 0.015C D 0.025  62   75   19     39
C22600, C23000, and C23400
OS070 0.070 0.050 0.100 53 60 6 16
OS050 0.050C 0.035 0.070 56 63 10 20
OS035 0.035C 0.025 0.050 58 66 13 24
OS025 0.025C 0.015 0.035 60 72 16 34
OS015 0.015C D 0.025 62 79 19 48
OS010 0.010C D 0.015 66 83 25 50
C24000
OS070 0.070 0.050 0.120 53 64 2 21
OS050 0.050C 0.035 0.070 57 67 8 27
OS035 0.035C 0.025 0.050 61 72 16 35
OS025 0.025C 0.015 0.035 63 77 20 42
OS015 0.015C D 0.025 66 83 25 50
C26000, C27000, and C27400
OS120 0.120 0.070 ... 50 62 ... 21
OS070 0.070 0.050 0.120 52 67 3 27
OS050 0.050 0.035 0.070 61 73 20 35
OS035 0.035 0.025 0.050 65 76 25 38
OS025 0.025 0.015 0.035 67 79 27 42
OS015 0.015 D 0.025 72 85 33 50
  • A. Rockwell hardness values apply as follows: The F scale applies to metal 0.020 in. [0.5 mm] in thickness and over; the 30-T scale applies to metal 0.015 in. [0.4 mm] in thickness and over.
    B. Copper Alloy UNS No. C21000 in these several OS (annealed) tempers is too soft for Rockwell F hardness tests below 0.030 in. [0.75 mm] in thickness.
    C. The nominal grain sizes are those in which wire other than rectangular are normally available. Rectangular wire is normally available in any of the nominal grain sizes listed.
    D. Although no minimum grain size is required, the material must be fully recrystallized.

Tensile Strength Requirements for Round, Hexagonal, Octagonal, and Square Wire 0.020 in. and Over in Diameter or Distance Between Parallel Surfaces

Temper Designation Code H00 H01 H02 H03 H04 B H06 C,D H08 E,D
UNS eighth-hard quarter-hard half-hard three-quarter hard hard extra-hard spring
Tensile Strength,
ksi A		 C21000 Min 35 41 49 57 61 66 72
Max 45 51 58 64 68 73 ...
C22000 Min 38 45 56 64 70 78 84
Max 50 57 67 74 79 86 ...
C22600 and C23000 Min 43 53 66 76 83 94 100
Max 57 65 77 86 92 102 ...
C23400 and C24000 Min 50 62 78 90 100 112 116
Max 65 75 90 101 110 121 ...
C26000, C27000,
and C27400		 Min 50 62 79 92 102 115 120
Max 65 77 94 107 117 129 ...
  • A. ksi = 1000 psi.
    B. H04 (hard) temper wire is not generally available in sizes over 1⁄2 in. in diameter.
    C. H06 (extra-hard) temper is not generally available in sizes over 3⁄8 in. in diameter.
    D. Square wire is not generally available in extra hard or spring tempers.
    E. H08 (spring) temper is not generally available in sizes over 1⁄4 in. in diameter

Tensile Strength Requirements for Round, Hexagonal, Octagonal, and Square Wire 0.5 mm and Over in Diameter or Distance Between Parallel Surfaces

Temper Designation Code H00 H01 H02 H03 H04 B H06 C,D H08 E,D
Name eighth-hard quarter-hard half-hard three-quarter hard hard extra-hard spring
Tensile Strength, MPa A C21000 Min 240 285 340 395 420 455 495
Max 310 350 400 440 470 505 ...
C22000 Min 260 310 385 440 485 540 580
Max 345 395 460 510 545 595 ...
C22600 and C23000 Min 295 365 455 525 570 650 690
Max 395 450 530 595 635 700 ...
C23400 and C24000 Min 345 425 540 620 690 770 800
Max 450 515 620 700 760 830 ...
C26000, C27000, and C27400 Min 345 425 545 635 700 790 830
Max 450 530 650 740 810 890 ...
  • B. H04 (hard) temper wire is not generally available in sizes over 13 mm in diameter.
    C. H06 (extra-hard) temper is not generally available in sizes over 10 mm in diameter.
    D. Square wire is not generally available in extra hard or spring tempers.
    E. H08 (spring) temper is not generally available in sizes over 6 mm in diameter.

Tensile Strength Requirements and Approximate Rockwell Hardness Values for Rectangular Wire

Temper Designation Tensile Strength, ksi Approximate Rockwell Hardness A
B Scale Superficial 30-T
Standard B 601 Former Min Max 0.020 to 0.036 in. incl Over 0.036 in. 0.012 to 0.028 in. incl Over 0.028 in.
C21000
H01 quarter-hard 37 47 20-48 24-52 34-51 37 54
H02 half-hard 42 52 40-56 44-60 46-57 4S-59
H03 three-quarter-hard 46 56 50-61 53-64 52-60 54-62
H04 hard 50 59 57-64 60-67 57-62 59-64
H06 extra hard 56 64 64-70 66-72 62-66 63-67
H08 spring 60 6S 68-73 70-75 64-65 65-69
H10 extra spring 61 69 69-74 71-76 65-69 66-70
C22000
H01 quarter-hard 40 50 27-52 31-56 38-53 41-56
H02 half-hard 47 57 50-63 53-66 52-61 54-63
H03 three-quarter-hard 52 62 59-68 62-71 58..64 60-66
H04 hard 57 66 65-72 68-75 62-66 64-6S
H06 extra hard 64 72 72 77 74-79 67-71 68-72
H08 spring 69 77 76-79 78-81 70-72 71-73
H10 extra spring 72 80 78-81 80-83 71-73 72-74
C22600, C23000
H01 quarter-hard 44 54 33-58 37-62 42-57 45-60
H02 half-hard 51 61 56-68 59-71 56-64 58-66
H03 three-quarter-hard 57 67 66-73 69-76 63-6S 65-70
H04 hard 63 72 72-78 74-80 67-71 68-72
H06 extra hard 72 80 78-83 80-85 70-74 71-75
H08 spring 78 86 82-85 84-87 74-76 75-77
H10 extra spring 82 90 84-87 86-89 75-77 76-78
C23400 and C24000
H01 quarter-hard 48 58 38-61 42-65 42-57 45-60
H02 half-hard 55 65 59-70 62-73 56-64 58-66
H03 three-quarter-hard 61 71 69-76 72-79 63-68 65-70
H04 hard 68 77 76-82 78-84 68-72 69-73
H06 extra hard 78 87 83-87 85-89 72-75 73-76
H08 spring 85 93 87-90 89-92 75-77 76-78
H10 extra spring 89 97 88-91 90 93 76-78 77-79
C26000
H01 quarter-hard 49 59 40-61 44-65 43-57 46-60
H02 half-hard 57 67 60-74 63-77 56-66 58-68
H03 three-quarter-hard 64 74 72-79 75-82 65-70 67-72
H04 hard 71 81 79-84 81-86 70-73 71-74
H06 extra hard 83 92 85-89 87-91 74-76 75-77
H08 spring 91 100 89-92 90-93 76-78 76-78
H10 extra spring 95 104 91-94 92-95 77-79 77-79
C27000 and C27400
H01 quarter-hard 49 59 40-61 44-65 43-57 46-60
H02 half-hard 55 65 57-71 60-74 54-64 56-66
H03 three-quarter-hard 62 72 70-77 73-80 65-69 67-71
H04 hard 68 78 76-82 78-84 68-72 69-73
H06 extra hard 79 89 83-87 85-89 73-75 74-76
H08 spring 86 95 87-90 89-92 75-77 76-78
H10 extra spring 90 99 88-91 90 93 76-78 77-79
  • A. Rockwell hardness values apply as follows: the B scale values apply to metal 0.020 in. and over in thickness, and the 30-T scale values apply to metal 0.012 in. and over in thickness.

Tensile Strength Requirements and Approximate Rockwell Hardness Values for Rectangular Wire

Temper Designation Tensile Strength, ksi Approximate Rockwell Hardness A
B Scale Superficial 30-T
Standard B 601 Former Min Max 0.020 to 0.036
in. incl		 Over 0.036
in.		 0.012 to 0.028
in. incl		 Over 0.028
in.
C21000
H01 quarter-hard 255 325 20-48 24-52 34-51 37-54
H02 half-hard 290 360 40-56 44-60 46-57 4B-59
H03 three-quarter-hard 315 3B5 50-61 53-64 52-60 54-62
H04 hard 345 405 57-64 60-67 57-62 59-64
H06 extra hard 3B5 440 64-70 66-72 62-66 63-67
H08 spring 415 470 68-73 70-75 64-6B 65-69
H10 extra spring 420 475 69-74 71-76 65-69 66-70
C22000
H01 quarter-hard 275 345 27-52 31-56 38-53 41-56
H02 half-hard 325 395 50-63 53-66 52-61 54-63
H03 three-quarter-hard 360 425 59-68 62-71 58-64 60-66
H04 hard 395 455 65-72 6B-75 62-66 64-68
H06 extra hard 440 495 72-77 74-79 67-71 68-72
H08 spring 475 530 76-79 78-81 70-72 71-73
H10 extra spring 495 550 78-81 80-83 71-73 72-74
C22600, C23000
H01 quarter-hard 305 370 33-58 37-62 42-57 45-60
H02 half-hard 350 420 56-68 59-71 56-64 58-66
H03 three-quarter-hard 395 460 66-73 69-76 63-68 65-70
H04 hard 435 495 72-78 74-80 67-71 68-72
H06 extra hard 495 550 78-83 80-85 70-74 71-75
H08 spring 540 595 82-85 84-87 74-76 75-77
H10 extra spring 565 620 84-87 86-89 75-77 76-78
C23400 and C24000
H01 quarter-hard 330 400 38-61 42-65 42-57 45-60
H02 half-hard 380 450 59-70 62-73 56-64 58-66
H03 three-quarter-hard 420 490 69-76 72-79 63-68 65-70
H04 hard 470 530 76-82 78-84 68-72 69-73
H06 extra hard 540 600 83-87 85-89 72-75 73-76
H08 spring 585 640 87-90 89-92 75-77 76-78
H10 extra spring 615 670 88-91 90-93 76-78 77-79
C26000
H01 quarter-hard 340 405 40-61 44-65 43-57 46-60
H02 half-hard 395 460 60-74 63-77 56-66 58-60
H03 three-quarter-hard 440 510 72-79 75-82 65-70 67-72
H04 hard 490 560 79-84 81-86 70-73 71-74
H06 extra hard 570 635 85-89 87-91 74-76 75-77
H08 spring 625 690 89-92 90-93 76-78 76-78
H10 extra spring 655 720 91-94 92-95 77-79 77-79
C27000 and C27400
H01 quarter-hard 340 405 40-61 44-65 43-57 46-60
H02 half-hard 380 450 57-71 60-74 54-64 56-66
H03 three-quarter-hard 425 495 70-77 73-80 65-69 67-71
H04 hard 470 540 76-82 78-84 68-72 69-73
H06 extra hard 545 615 83-87 85-89 73-75 74-76
H08 spring 595 655 87-90 89-92 75-77 76-78
H10 extra spring 620 685 88-91 90-93 76-78 77-79

ASTM B134 Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103