MARTENSITIC STEEL 10705MBU
2026-07-30 09:42:53 Origin： Remark：0 Click：
Turbine blade steel 10705MBU hardened round bar, milled flat bar, 10705MBU stockist forgings, ESR melting, Hot forged / rolled, heat treated, cold finished
TECHNICAL DATA SHEET - 10705MBU
Technical specification: GTC-0029 / Ref. GB/T 8732 - 2014
Material type: 11.0Cr - 0.5Ni - 0.42Mo - 1.7W - 0.14C base martensitic steel
Stock on hand: round bar, billets
Typical chemical elements (mass weight - %)
Carbon, C (％): 0.12 ~ 0.16
Silicon, Si (％): ≤ 0.06
Silicon, Si (％): ≤ 0.06
Manganese, Mn (％): 0.30 ~ 0.70
Phosphorus, P (％): ≤ 0.020
Sulfur, S (％): ≤ 0.015
Chromium, Cr (％): 10.0 ~ 11.0
Phosphorus, P (％): ≤ 0.020
Sulfur, S (％): ≤ 0.015
Chromium, Cr (％): 10.0 ~ 11.0
Molybdenum, Mo (％): 0.35 ~ 0.50
Nickel, Ni (%): 0.35 ~ 0.65
Vanadium, V (%): 0.14 ~ 0.20
Tungsten, W (%): 1.50 ~ 1.90
Copper, Cu (%): ≤ 0.50
Nitrogen, N (%): 0.04 ~ 0.08
Niobium, Nb (%): 0.05 ~ 0.11
MECHANICAL PROPERTIES UNDER AMBIENT TEMPERATURE
Condition: QT1
Quenching ≥ 1100 Deg., oil cooling
Tempering ≥ 620 Deg., air cooling
Tensile strength, Rm ≥ MPa: 930
Yield strength, Rp0.2 ≥ MPa: 760
Elongation, A5 ≥ (％): 14.0
Yield strength, Rp0.2 ≥ MPa: 760
Elongation, A5 ≥ (％): 14.0
Reduction of area, Z (%): 32.0
Impact strength, AKv2 / J ≥: 20
Hardness under QT, HBW: 277 ~ 331
PRODUCT DESCRIPTION
10705MBU alloy is usually produced by AOD / BEF / EAF 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: quenched and tempered + SRA.
10705MBU alloy is usually produced by AOD / BEF / EAF 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: quenched and tempered + SRA.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry or help, you can contact our qualified production engineers. via Email: sales@ccsteels.com.
If you meet further on any technical enquiry or help, you can contact our qualified production engineers. via Email: sales@ccsteels.com.
Jiangyou Longhai Special Steel Co.,Ltd
ISO 9001-2015 Certified
Custom 450 / GD450 / XM-25 (S45000), 403 ESR, AISI 616 / 422 ESR, B50A365 / 403Cb+
17-4PH / 630, M-152 / 1.4938 / S151D, FV520B / S143 / 1.4594. X22CrMoV12-1
13Х11Н2B2MФ / AE961W, 11Х11Н2B2MФ / 16Х11Н2B2MФ
AISI 615 / S41800, 15-5PH / XM-12 (S15500), A-286 AISI 660 / S66286
10705BU, 10705MBU, 10705AJ, S132, S131, S111, S159, S154
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