Page 347 - YG 2019

Al Al GS GS GS GS GS GS GS GS GS

T7216/T6216/T8216 T7256 T7217/T6217/ T7226/T6226/ T7B17/T6B17/
SERIES T2496 T2K01 I9/J0/J1/J7 K9/L0/L1 L7/L8/L9 L3/L4/L5 T7C16/T6C16/T8C16 /T6256 T8217 T8226 T8B17

DIN Length- USCTI USCTI
DESCRIPTION USCTI 302A USCTI 302A USCTI 302 USCTI 302A USCTI 302A USCTI 302 USCTI 302 USCTI 302
ANSI Shank Oversize Oversize
PAGE 452 453 454 455 456 457 458 462 464 465 466
HIGH PERFORMANCE TAPS THREADS UNC/UNF M/MF UNC/UNF UNC/UNF M/MF UNC/UNF UNC/UNF UNC/UNF M/MF UNC/UNF M/MF
RECOMMENDATION TABLE TAP MATERIALS HSSE-V3 HSSE-V3 HSSE-V3 HSS-V HSS-V HSS-V HSS HSS HSS HSS HSS

Super HSS : Premium HSS Metallurgy CHAMFER LENGTH 4-5P 4-5P 4-5P 4-5P 4-5P 4-5P 4-5P 1.5-2P 4-5P 4-5P 4-5P
P-HSS : Powdered Metallurgy Steam Oxide Bright Bright Bright Bright Bright Bright Bright
Bright
HSSE-V3 : 3% Vanadium Alloy HSS-EX SURFACE TREATMENT Bright Bright Bright/TiN TiN TiCN TiN Steam Oxide Steam Oxide Steam Oxide Steam Oxide Steam Oxide
Hardslick Hardslick Hardslick Hardslick TiN TiN TiN TiN
HSS-V : Vanadium Alloy HSS
SPIRAL FLUTE ANGLE - - - - - - - - - - -

◎= RECOMMENDED THREAD DEPTH 3.0D 3.0D 3.0D 3.0D 3.0D 3.0D 3.0D 3.0D 3.0D 3.0D 3.0D
○= SUITABLE HOLE TYPE Through Through 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 COOLANT
(HRc) (BHN)
Material Material Sub-Group
Group ISO Uncoated Coated

Low carbon steels
Free machining carbon steels P < 15 < 180 25 - 50 50 - 80 T ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
Medium to high carbon steels
Low alloyed steels P < 23 < 240 25 - 50 50 - 80 T ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
Steel
Steel castings & forgings > 24 > 250
Heat-treatable alloy steels P ≤ 38 ≤ 350 6 - 30 10 - 35 X ○ ○ ○ ○ ○ ○ ○ ○ ○
Alloyed tool steels > 38 > 350 6 - 12 - A
Mold steels P ≤ 44 ≤ 420
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 > 38 > 350 12 - 15 - A
Precipitation hardening stainless steels M ≤ 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 Alloyed brass N - - 30 - 65 - T
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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