BS T68
2015-06-18 16:23:52 Origin： Remark：0 Click：
Technical specifications of BS T68 Aerospace Standards alloy steel, T68 Round bar, flat bar, and forgings from steelmaking, Electroslag remelting, Hot forging /rolling, Heat treatment, Cold machined.
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL SPECIFICATION DATASHEET - Grade BS T68
MATERIAL CATEGORY: Aerospace "T" Series alloy steel
CHEMICAL COMPOSITION (mass weight %)
C (％): ≤ 0.08
Si (％): 0.20 ~ 1.00
Mn (％): 0.50 ~ 2.00
P (％)≤: 0.035
S (％)≤: 0.025
Cr (％): 17.0 ~ 19.0
Ni (％): 9.00 ~ 12.0
Si (％): 0.20 ~ 1.00
Mn (％): 0.50 ~ 2.00
P (％)≤: 0.035
S (％)≤: 0.025
Cr (％): 17.0 ~ 19.0
Ni (％): 9.00 ~ 12.0
Nb (%): 10 X C ~ 1.00
Ti (%): -
HEAT TREATMENT AND MECHANICAL PROPERTIES
Heat treatment temperature and cooling: solution treatment
Tensile strength, σb≥/MPa: 520
Tensile strength, σb≥/MPa: 520
Yield strength, σ0.2≥/MPa: 205
Elongation, δ5 (%)≥: 40.0
Hardness ≤HBW: -
Elongation, δ5 (%)≥: 40.0
Hardness ≤HBW: -
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / VOD 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 black/bright in the annealed condition.
Final heat treatment - solution treatment
The alloy is usually produced by AOD / VOD 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 black/bright in the annealed condition.
Final heat treatment - solution treatment
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter1): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
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.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. Email: sales@ccsteels.com.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. Email: sales@ccsteels.com.
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