Page 341 - YG 2019

Ti / Ni VA VA VG VA VA VA VG VG VG Al

G7/G8/G9/
SERIES B3/B5/D6 H0 H2/H4 BG/BG-GB B1/B0/B2/D2 BS/BT E6/E8/E9 D3/E0 BU/BV E2/E4/E5 C0/D8

USCTI USCTI DIN Length- DIN Length- DIN Length-
DESCRIPTION USCTI 302A USCTI 302A USCTI 302A USCTI 302A USCTI 302A USCTI 302A
Long Shank Long Shank ANSI Shank ANSI Shank ANSI Shank
PAGE 399 401 402 403 404 407 408 409 412 414 415
HIGH PERFORMANCE TAPS THREADS UNC/UNF UNC/UNF UNC/UNF UNC/UN8 UNC/UNF M/MF M/MF UNC/UNF M/MF M/MF UNC/UNF
RECOMMENDATION TABLE TAP MATERIALS P-HSS P-HSS P-HSS HSSE-V3 HSSE-V3 HSSE-V3 HSSE-V3 HSSE-V3 HSSE-V3 HSSE-V3 HSSE-V3

Super HSS : Premium HSS Metallurgy CHAMFER LENGTH 2-3P 2-3P 4-5P 2-3P 2-3P 2-3P 2-3P 2-3P 2-3P 2-3P 2-3P
P-HSS : Powdered Metallurgy Steam Oxide Bright Steam Oxide Steam Oxide
Hardslick
TiN
TiN
Bright
HSSE-V3 : 3% Vanadium Alloy HSS-EX SURFACE TREATMENT TiCN Hardslick Hardslick Gold & Black Steam Oxide Steam Oxide TiCN Steam Oxide Steam Oxide TiCN Hardslick
Hardslick
Hardslick
Hardslick
TiN
Hardslick Hardslick Hardslick
HSS-V : Vanadium Alloy HSS Hardslick
SPIRAL FLUTE ANGLE R15° R45° L15° R40° R45° R45° R45° R45° R45° R45° R50°
◎= RECOMMENDED THREAD DEPTH 2.5D 2.5D 3.0D 2.5D 2.5D 2.5D 2.5D 2.5D 2.5D 2.5D 2.5D
○= SUITABLE HOLE TYPE Blind Blind Through Blind Blind Blind Blind Blind Blind Blind Blind
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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