10705BU
2025-11-12 14:00:00 Origin： Remark：0 Click：
Material specification 10705BU martensitic creep-resistant steel hardened round bar, flat bar, plate 10705BU ESR AISI 616 stock available, final heat treatment
TURBINE BLADE STEEL - 10705BU
Stock available: round bar Diam. 20 ~ 210mm, ESR ingot, billets
Material category: high temperature martensitic chromium bars and forge piece
Techncial specifications: 10705BU & Ref. ASTM A565
Typical chemical compositions (mass weight %)
Carbon, C (％): 0.20 ~ 0.25
Silicon, Si (％): ≤ 0.50
Manganese, Mn (％): 0.50 ~ 1.00
Phosphorus, P (％): ≤ 0.025
Sulfur, S (％): ≤ 0.015
Chromium, Cr (％): 11.00 ~ 12.50
Nickel, Ni (％): 0.50 ~ 1.00
Molybdenum, Mo (％): 0.90 ~ 1.25
Tungsten, W (％): 0.90 ~ 1.25
Vanadium, V (%): 0.20 ~ 0.30
Material category: high temperature martensitic chromium bars and forge piece
Techncial specifications: 10705BU & Ref. ASTM A565
Typical chemical compositions (mass weight %)
Carbon, C (％): 0.20 ~ 0.25
Silicon, Si (％): ≤ 0.50
Manganese, Mn (％): 0.50 ~ 1.00
Phosphorus, P (％): ≤ 0.025
Sulfur, S (％): ≤ 0.015
Chromium, Cr (％): 11.00 ~ 12.50
Nickel, Ni (％): 0.50 ~ 1.00
Molybdenum, Mo (％): 0.90 ~ 1.25
Tungsten, W (％): 0.90 ~ 1.25
Vanadium, V (%): 0.20 ~ 0.30
MECHANICAL PROPERTIES UNDER DIFFERENT HEAT TREATED CONDITIONS
Form: bar, flat bar, forge piece
Hardness under annealed condition, HBW: ≤ 248
Condition: +HT, tempering (620℃)
Tensile strength, Rm / MPa: 930
Yield strength, Rp0.2 / MPa: 760
Elongation, A5 (％): 14.0
Reduction of area, Z (％): 32.0
Hardness | HRB: 277 ~ 331
Form: bar,forge piece
Condition: + H, tempering (675℃)
Tensile strength, Rm / MPa: 825
Yield strength, Rp0.2 / MPa: 585
Elongation, A5 (％): 17.0
Reduction of area, Z (％): 35.
Hardness | HRB: 241~285
PRODUCT DESCRIPTION
The alloy is usually produced by BEF / AOD 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 - Quenched and tempered + SRA.
PRODUCT FORMS & DIMENSIONS
Round bar / rod / disc (diameter): 6.0 to 850 mm
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Heavy / middle plate via hot rolled: T60 ~ 400 X W70 ~ 1000 X L1000 ~ 6000 mm
Forging piece: stepped shafts, and 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,
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