ASTM T5 공구강 / 1.3265 / S18-1-2-10 / SKH4 / BT5

ASTM T5 공구강 is one of tungsten high-speed tool steel. It belongs to ASTM A600, together with T1, T2, T4 Tool Steel etc. They are also in T group in ASTM A600 standard. AISI T5 high speed steel contains Cobalt with range 7.0~9.5%. AISI T5 steel has better high temperature performance, toughness and better cutting performance than ASTM T4 steel. Similar to T4 steel materials, T5 tool steels are also used for cutting tool, turning tool etc.

1.ASTM T5 Tool Steel Supply Range

T5 스틸 라운드 바 : 직경 2mm – 200mm
T5 강재 평면 : 두께 2-20mm x 너비 10-100mm
T5 강판 : 두께 2-200mm x 너비 200-810mm
표면 마무리 : 검은 색, 거친 가공, 벗겨짐, 회전 또는 주어진 요구 사항에 따라.

2.Relevant Steel Specifications of AISI T5 Tool Steel

국가	미국	German	일본	영국의
기본	ASTM A600	ISO 4957	JIS G4403	학사 4659
성적	T5 / T12005	1.3265/S18-1-2-10	SKH4	BT5

3.AISI T5 Tool Steels and Equivalents’ Chemical Composition

ASTM A600	C		Mn		P	S	Si		Cr		V		W		Mo		Co
T5	0.75	0.85	0.20	0.40	0.03	0.03	0.20	0.40	3.75	5.00	1.80	2.40	17.50	19.00	0.50	1.25	7.00	9.50
DIN ISO 4957	C		Mn		P	S	Si		Cr		V		W		Mo		Co
1.3265/S18-1-2-10	0.72	0.80	...	0.40	0.03	0.03	...	0.45	3.80	4.50	1.40	1.70	17.50	18.50	0.50	0.80	9.00	10.00
JIS G4403	C		Mn		P	S	Si		Cr		V		W		Mo		Co
SKH4	0.73	0.83	...	0.40	0.03	0.03	...	0.45	3.80	4.50	1.00	1.50	17.00	19.00	...	...	9.00	11.00
학사 4659	C		Mn		P	S	Si		Cr		V		W		Mo		Co
BT5	0.75	0.85	...	0.40	0.35	0.35	...	0.40	3.75	4.50	1.75	2.05	18.50	19.50	...	1.00	9.00	10.00

4.High Speed Tool Steel T5 Mechanical Properties

• 고속 T5 공구강의 물리적 특성

재산	밀도 kg/dm3	Temperature T °C/F	비열 J / kgK	열전도율 W/mK	Electric resistance µΩ·cm	탄성 계수 kN/mm2	온도. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
445 (≥)	839 (≥)	42	42	34	솔루션 및 에이징, 어닐링, Ausaging, Q + T 등	424	883	167	975

• Mechanical Properties of HSS T-5 Steel

등록	메트릭	제국의
밀도	8.75 G / cm3	0.316 lb / in3
등록	메트릭	제국의
포아송 비	0.27-0.30	0.27-0.30
탄성 계수	190-210 GPa	27557-30458 ksi

5. ASTM T5 공구강 재료 단조

Hot forming temperature: 1150-900oC.

6.ASTM T5 Tool Steel Heat Treatment

• Annealing of T-5 Steel
  • Annealing is recommended after hot working and before re hardening
  • Heat the temperature to 850°C at a rate of no more than 220°C per hour.
  • Hold at the temperature for one hour per inch of thickness(at least two hours).
  • Cool slowly in the furnace or in air to ambient temperature.
  • The resultant hardness achieved should be Max 255HB or lower.

• 스트레스 해소

Stress relieving to remove machining stresses should be carried out by heating to 600-650oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

• Hardening of Steel T5
  • Preheat T5 tool steel slowly to the temperature of 820-870°C.
  • Heat to the final hardening temperature of 1250°C and make sure the material must be heated through.
  • Quench in the warm oil,and then complete the quench in air.(care must be taken at this step)
• Tempering of T-5 Steel

Tempering temperature: 550-590oC.

뜨임 온도 (^oC) 대 경도 (HRC)

100oC	150oC	200oC	250oC	300oC	350oC	400oC	450oC	500oC	550oC	600oC	650oC
64	64.5	63	62.5	62	62	62.5	63.6	64.8	66	64	60

7. ASTM / AISI T5 공구강의 응용

ASTM T5 high speed steels are generally used as cutting tools, broaches and cold extrusion punches, turning blades, punchers, metal working blades.

일반적인 응용 분야는 다음과 같습니다.

• 훈련,
• 밀링 커터,
• 나사 절삭 공구,
• 널링 도구,
• 냉간 압출 펀치
• 브로치 등

Besides AISI T5 high speed tool steel, we could also supply you T1, T2, T4, T10, T15 tool steel. Just send us your requests and have our best T5 tool steel price and other HSS tool steel offer.