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      • Technical Information
        • NIB (NUT) TAPS PITCH DIAMETER TOLERANCE TABLE (G GRADE LIMITS)
        • H GRADE LIMITS
        • FLUTELESS TAPS R GRADE LIMITE
        • PIPE THREADS
        • MATERIALS USED FOR THREAD CUTTING TOOLS
        • TAP DRILL HOLE
        • RECOMMENDED TAP DRILL HOLE SIZE
        • RECOMMENDED DRILL HOLE SIZE FOR FLUTELESS TAPS
        • RECOMMENDED TAP DRILL HOLE SIZE FOR HELICAL COIL WIRE INSERT
        • SURFACE TREAMENT FOR TAPS
        • RECOMMENDED TAPPING SPEEDS & LUBRICANTS
        • BASIC PROFILE OF THREADS
        • CONVERSION TABLE FROM INCH TO MILLIMETER
        • HARDNESS CONVERSION TABLE
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  • Ho Hong Precision Tools Co.,Ltd
  • Technical Information
  • RECOMMENDED TAPPING SPEEDS & LUBRICANTS

Ho Hong Precision Tools Co.,Ltd

  • Product
  • Technical Information
    • NIB (NUT) TAPS PITCH DIAMETER TOLERANCE TABLE (G GRADE LIMITS)
    • H GRADE LIMITS
    • FLUTELESS TAPS R GRADE LIMITE
    • PIPE THREADS
    • MATERIALS USED FOR THREAD CUTTING TOOLS
    • TAP DRILL HOLE
    • RECOMMENDED TAP DRILL HOLE SIZE
    • RECOMMENDED DRILL HOLE SIZE FOR FLUTELESS TAPS
    • RECOMMENDED TAP DRILL HOLE SIZE FOR HELICAL COIL WIRE INSERT
    • SURFACE TREAMENT FOR TAPS
    • RECOMMENDED TAPPING SPEEDS & LUBRICANTS
    • BASIC PROFILE OF THREADS
    • CONVERSION TABLE FROM INCH TO MILLIMETER
    • HARDNESS CONVERSION TABLE

RECOMMENDED TAPPING SPEEDS & LUBRICANTS

1. Following usage chart the recommended tapping speeds and cutting fluids, tap material type of tap chamfer length dimension of drill hole work materials and cutting fluids are important factors for determining suitable tapping speed.
2. When work material has excellent workability, when there is a little depth of tapping, or when tapping flud can be sufficieny, select rather high tapping speed. When workability of work material is unknown, it is safe to try nearly the lowest tapping speed at first, and theen increwse the speed gradually.




Workpiece materials

Tapping speed

Cutting fluids

Hand tap

Spiral fluted tap

Spiral pointed

tap

Fluteless tap

Pipe thread

tap

Non water-

soluble

water-soluble

Semi- dry

Low Carbon Steels

≦C 0.2%

7∼12

8∼13

10∼20

8∼14

3∼7

◎

☉

△

Medium Carbon Steels

C 0.25≦0.45%

6∼11

6∼12

8∼15

7∼10

3∼6

◎

☉

△

High Carbon Steels

≦C 0.45%

5∼9

5∼10

8∼13

5∼8

2∼5

◎

☉

△

Alloy Steels

SCM.SNCM

6∼10

6∼12

7∼11

5∼8

2∼5

◎

△

△

Thermal Refined Steels

20≦45HRC

3∼5

3∼5

4∼7

─

2∼5

◎

△

─

Stainless Steels

SUS

3∼7

3∼8

4∼10

5∼10

3∼8

◎

☉

─

Tool Steels

SKD

5∼9

5∼9

6∼9

─

2∼4

◎

─

─

Cast Steels

SC

6∼11

6∼11

8∼15

─

2∼5

◎

☉

─

Cast Irons

FC

10∼16

─

─

─

2∼5

◎

☉

☉

Ductile Cast Irons

FCD

6∼12

6∼12

7∼16

─

4∼8

◎

☉

☉

Coppers

CU

6∼10

6∼11

7∼13

7∼13

3∼5

☉

☉

─

Brass.Brass Casting

BS. BSC

10∼18

10∼20

13∼25

7∼13

5∼10

☉

☉

☉

Bronze.Bronze Casting

PB. PBC

6∼12

6∼12

10∼18

7∼12

5∼11

☉

☉

─

Wrought Aluminum

AL

10∼20

10∼20

15∼25

10∼20

5∼12

◎

☉

△

AluminumAlloyCastings

AC. ADC

10∼17

10∼17

12∼20

10∼16

10∼15

◎

☉

△

Magnesium Alloy Castings

MC

7∼12

7∼12

10∼17

─

7∼12

◎

☉

△

Zinc Alloy Die castings

ZDC

7∼15

7∼15

10∼17

7∼12

7∼15

◎

☉

△

Thermosetting Plastic

BAKELITE PHENOL-PF

10∼17

10∼17

10∼18

─

5∼10

─

☉

☉

Thermoplastic

VINYL. PVC NYLON

10∼17

10∼17

10∼18

─

5∼10

─

☉

☉

Titanium Alloys

Ti-6AL-4V

─

3∼8

4∼9

─

─

◎

☉

─

• Cutting fluids ◎ideal ☉good △applicable ─not applicable




HO HONG WORKS CO.,LTD.
HO HONG WORKS CO.,LTD.
No.10, Zhongshan Rd., Luzhu Dist., Kaohsiung City 82152, Taiwan (R.O.C)
TEL : 886-7-6963301
FAX : 886-7-6967780
E-mail : hh.wi@msa.hinet.net
E-mail : sales@hohongwork.com.tw
Ho Hong Precision Tools Co.,Ltd.
No. 14, Xinmin Rd., Luzhu Dist.,
Kaohsiung City 82146, Taiwan (R.O.C.)
TEL : 886-7-6963118
FAX : 886-7-6965550
E-mail : hohong.tools@msa.hinet.net
© 2023 HO HONG WORKS CO.,LTD. All rights reserved. Designed By  Winho
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