Page 349 - YG 2019

GS GG GG GG GG GG GS GS GS GS

T7236/T6236/T8236 T7316/T6316/T8316 T7315/T6315/
SERIES T7G36/T6G36/T8G36 T0C01 TR TR-A, TR-R T7A16/T7B16 T8315 T7326 T7B15

USCTI USCTI
DESCRIPTION USCTI Long Shank USCTI 302A USCTI 302A USCTI 302A USCTI 302A USCTI 302A USCTI 302 USCTI 302
Oversize Oversize
PAGE 467 471 472 474 476 482 483 484
HIGH PERFORMANCE TAPS THREADS UNC/UNF UNC/UNF UNC/UNF M/MF UNC/UNF M/MF UNC/UNF/UNS M/MF UNC/UNF UNC/UNF

RECOMMENDATION TABLE TAP MATERIALS HSS Carbide Super HSS Super HSS Super HSS Super HSS HSS HSS HSS HSS

Super HSS : Premium HSS Metallurgy CHAMFER LENGTH 4-5P 1.5-2P 2P~3P 2P~3P 2P~3P 2P~3P 9P / 5P / 2P 9P / 5P / 2P 5P / 2P 5P / 2P
P-HSS : Powdered Metallurgy Bright Bright Bright
HSSE-V3 : 3% Vanadium Alloy HSS-EX SURFACE TREATMENT Steam Oxide Bright TiAlN TiAlN TiAlN TiAlN Steam Oxide Steam Oxide Bright Bright
TiN TiN TiN
HSS-V : Vanadium Alloy HSS
SPIRAL FLUTE ANGLE - - - - - - - - - -
THREAD DEPTH 3.0D 2.0D 2.0D 2.0D 2.0D 2.0D 2.0D 2.0D 2.0D 2.0D
◎= RECOMMENDED
○= SUITABLE HOLE TYPE Through Blind Blind Blind Blind Blind Blind Blind Blind Blind
Through Through Through Through Through Through Through Through Through
COOLANT
A = Cutting Oil Cutting Speed
T = Oil Emulsion (SFM)
X = Cutting Oil/Oil Emulsion
Hardness Hardness
(HRc) (BHN) COOLANT
Material Material Sub-Group ISO Uncoated Coated
Group

Low carbon steels < 15 < 180 25 - 50 50 - 80 T
Free machining carbon steels P ◎ ◎ ◎ ◎ ◎
Medium to high carbon steels < 23 < 240 25 - 50 50 - 80 T
Low alloyed steels P ◎ ◎ ◎ ◎ ◎
Steel
Steel castings & forgings > 24 > 250
Heat-treatable alloy steels P ≤ 38 ≤ 350 6 - 30 10 - 35 X ○
Alloyed tool steels > 38 > 350
Mold steels P ≤ 44 ≤ 420 6 - 12 - A
Free machining stainless steels M < 23 < 240 12 - 35 20 - 50 A ○ ◎ ◎ ◎ ◎
Stainless Heat-and corrosion-resistant stainless steels M > 24 > 250 12 - 15 12 - 15 A ○
Steel Valve stainless steels ≤ 38 ≤ 350
Stainless steel castings M > 38 > 350 12 - 15 - A
Precipitation hardening stainless steels ≤ 44 ≤ 420
Grey cast iron K - ≤ 220 35 - 50 50 - 65 T ◎ ◎ ◎ ◎ ◎
Cast Iron Nodular cast iron / Chilled cast iron
Meehanite iron / Ductile iron K - ≥ 250 12 - 45 25 - 55 X ○ ◎
Copper Pure and alloyed copper N - - 50 - 60 65 - 100 T ◎ ◎ ◎ ◎ ◎
Free machining brass
Brass N - - 30 - 65 - T ◎ ◎ ◎ ◎
Alloyed brass
Bronze N 44 < 420 12 - 20 35 - 80 T
Pure Aluminum N - - 50 - 65 - T ◎ ◎ ◎ ◎
Aluminum Aluminum alloys
Aluminum alloy castings N - - 40 - 65 45 - 90 T ○ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
Zinc N - - 25 - 65 50 - 80 T ◎ ◎ ◎ ◎
Magnesium N - - - 45 - 100 T ◎ ◎ ◎ ◎
718 & 625 INCOn / Waspaloy
Hastelloyn / Invar S ≤ 38 ≤ 350 10 - 15 - A
Nickel Moneln / Incoloy
Alloys
718 Inconel > 38 > 350
A286 S ≤ 44 ≤ 420 10 - 12 - A
Titanium S ≤ 38 ≤ 350 3 - 15 - A
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