BS T73
2025-04-30 15:36:00 Origin： Remark：0 Click：
Technical specifications T73 Aerospace Standards T73 Round bar, flat bar, plate, Electroslag remelting, Blooming, Forging, Rolling, Heat treatment
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - BS T73
MATERIAL CATEGORY: Aerospace "T" Series alloy steel
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): ≤ 0.08
Silicon, Si (％): 0.20 ~ 1.00
Manganese, Mn (％): 0.50 ~ 2.00
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 17.0 ~ 19.0
Nickel, Ni (％): 9.00 ~ 12.0
Silicon, Si (％): 0.20 ~ 1.00
Manganese, Mn (％): 0.50 ~ 2.00
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 17.0 ~ 19.0
Nickel, Ni (％): 9.00 ~ 12.0
Niobium, Nb (%): -
Titanium, Ti (%): 5 X C ~ 0.50
Other (％): Copper, Cu ≤ 0.50
HEAT TREATMENT AND MECHANICAL PROPERTIES
Heat treatment temperature and cooling: Solution treatment
Tensile strength, Rm ≥ MPa: 520
Tensile strength, Rm ≥ MPa: 520
Yield strength, Rp0.2 ≥ MPa: 205
Elongation, A5 (%) ≥: 40.0
Hardness ≤ HBW: -
Elongation, A5 (%) ≥: 40.0
Hardness ≤ HBW: -
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / VOD /VIM followed by electroslag refining (ESR) / VAR if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition.
Final heat treatment - solution treatment
The alloy is usually produced by AOD / VOD /VIM followed by electroslag refining (ESR) / VAR if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition.
Final heat treatment - solution treatment
HEAT TREATMENT PRACTICE
Heat treatment is only suitable for specific grades of stainless steel. When heat treating a stainless the hardening temperatures, including rate of heating, cooling and soaking times will vary due to several factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult with the heat treatment provider for whole guidance on heat treatment of stainless steel grades. We are delighted to help to work with you the special heat treatment based on your special requirements.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
Heat treatment is only suitable for specific grades of stainless steel. When heat treating a stainless the hardening temperatures, including rate of heating, cooling and soaking times will vary due to several factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult with the heat treatment provider for whole guidance on heat treatment of stainless steel grades. We are delighted to help to work with you the special heat treatment based on your special requirements.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
PRODUCT PROFILE & DIMENSION
Round bar / rod / disc (diameter): 5.50mm to 800mm
Square bar / flat bar: 8mm to 600mm
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Round bar / rod / disc (diameter): 5.50mm to 800mm
Square bar / flat bar: 8mm to 600mm
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W600- 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
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