16NR AG60 T250 Internal Threading Insert Premium Grade

Our Price:	£3.60
List Price:	~~£5.40~~
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(Exc. 20% VAT)(£4.32 Inc. VAT)

Model: 16NRAG60T250
Brand: APT Threading

Shipped Weight: 7 g

Availability:

In stock, immediate despatch

APT Threading

Threading Inserts Fully Ground with High Quality PVD Coatings, Quality Machine Taps and Thread Milling Cutters

16NR AG60 T250, 60° partial profle internal threading Insert in grade T250.

Will cut 0.5-3.0mm pitch and 48-8 TPI.

Proflle of the cutting tip is made to a sharp point so the root of the thread will not be full form. The workpiece should be turned down before threading so that the crest forms a truncated thread to avoid interference with the mating part.

Grade T250 is micro-grain carbide and is our preimium grade for all types of steel including carbon, alloy and hardened steel also good for cast iron and stainless good choice for general use.

Micrograin carbide provides increased wear resistance and improved tool life.

This bronze colour PVD coated grade covers P25, M25, K30, S15, H10 range of materials.

General Cutting parameters

Material	Hardness HB	Cutting Speed VC: m/min	Number of Passes	Application Choice
Non alloyed steel 0-0.45℅ C	125-170	90-190 (140)	4-16 depending on pitch	Good
Low alloyed steel	180-350	70-140 (100)	4-16 depending on pitch	Good
High alloyed steel	200-325	50-120 (90)	4-16 depending on pitch	Good
Corrosion resistant steel	200	60-130 (100)	4-16 depending on pitch	Good
Stainless - Ferritic	200-330	60-130 (100)	4-16 depending on pitch	OK but try grade T350
Stainless - Austenitic	180-200	40-140 (90)	4-16 depending on pitch	OK but try grade T350
Stainless - Cast Ferritic	200-330	60-120 (90)	4-16 depending on pitch	OK but try grade T350
Stainless - Cast Austenitic	200-330	60-110 (80)	4-16 depending on pitch	OK but try grade T350
Grey cast iron	180-260	60-130 (100)	4-16 depending on pitch	OK
Spheroidal cast iron	160-260	90-160 (120)	4-16 depending on pitch	OK
Malleable / Tempered iron	130-230	60-100 (70)	4-16 depending on pitch	OK
Aluminium Wrought Alloys	60-100	80-370 (220)	4-16 depending on pitch	OK but try grade AK10
Aluminium Castings Si<12%	80-90	200-360 (280)	4-16 depending on pitch	OK but try grade AK10
Aluminium Alloys Si 12%-23%	130	60-180 (120)	4-16 depending on pitch	OK but try grade AK10
Bronze & Brass	90-100	80-250 (170)	4-16 depending on pitch	OK but try grade AK10
Iron Based Hi-temp Alloys 200-280 HB	200-280	30-60 (45)	4-16 depending on pitch	OK but try grade T350
Nickel or Cobalt Based 250 HB	250	20-30 (25)	4-16 depending on pitch	OK but try grade T350
Nickel or Cobalt Based 30-58 HRC	350	15-25 (20)	4-16 depending on pitch	OK but try grade T350
Pure Titanium	400Rm	140-170 (150)	4-16 depending on pitch	OK but try grade T350
Titanium Alpha + Beta Alloys	1050Rm	50-70 (60)	4-16 depending on pitch	OK but try grade T350
Hardened Steel	40-50HRC	45-60 (50)	4-16 depending on pitch	OK
Hardened Steel	50-55HRC	40-50 (45)	4-16 depending on pitch	OK

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