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10705BU Round bar, Flat bar Available

Product parameters
Material Category:: Martensitic Stainless Steel
Stocklist & Inventory Available:: Round bar Diam. 20 ~ 220mm
Min. order quantity Per Batch:: 500 KG
Product Shapes:: Round bar, Flat bar, Hollow bar, Plate, and Forgings.
Ultrasonic Test Standard:: ASTM E2375 / MIL-STD- AMS 2154 / SEP 1923 / GB/T 4162 / EN 10228-3 / EN 10308
Production Lead Time:: Within 65 days after 40% deposit prepayabl2
Unified Social Credit Code:: 91510871777942750J
Company ISO Register No:: UQ211218R0
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Description


Introduction:
10705BU is a hardenable stainless
steel designed for use at temperatures of up to 650 ºC. 10705BU has good resistance to scaling and oxidation. Through heat treatment, high mechanical properties can be developed. 10705BU is used in applications such as compressors or steam turbines and also in aircraft parts, valves, high temperature bolting, and other mechanical parts used in high temperature circumstances.
The alloy is usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.

100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Bars are usually supplied black/bright in the annealed condition.


Applications:
Aircraft components.
High pressure corrosive fabricated parts such as valves
Shafts, Fasteners, Fittings and gears.

 

All Grades Equivalents
DIN ASTM AISI UNS JIS Other
1.4935
X20CrMoWV12-1
Grade 616 422 S42200 SUH 616 10705BU
AMS 5655


Chemical Composition (Mass weight %)
C Si Mn P S Cr Ni Mo Other
0.20 ~ 0.25 ≤ 0.50 0.50 ~ 1.00 ≤ 0.025 ≤ 0.025 11.0 ~ 12.5 0.50 ~ 1.00 0.90 ~ 1.25 W 0.90 ~ 1.25
V 0.20 ~ 0.30


Mechanical Properties Under Room Temperature.
Condition of heat treatment Tensile Rm(MPa) Yield Rp0.2(MPa) Elongation
A (%)
Reduction in cross section on fracture
Z (%)
Impact AKV/AKU(J) Brinell Hardness(HBW)
Annealed - - - - - ≤ 248
Hardened 1022℃ ~ 1050℃ air or oil cooled, ≥620℃ X 2H, tempered ≥ 965 ≥ 760 ≥ 13.0 ≥ 30.0 ≥ 11 302 ~ 352
Hardened 1022℃ ~ 1050℃ air or oil cooled, ≥677℃ X 2H, tempered ≥ 825 ≥ 585 ≥ 17.0 ≥ 35.0 ≥ 20 241 ~ 285


Supplying Forms and Dimensions
Round bar (Diameter): 5.5 mm to 550 mm
Wire rod (Diameter): 0.10 ~ 16mm
Square bar / Flat bar: 5mm to 550mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 650mm X L (or in coil form)
Forged ring: OD200 ~ 1500mm X ID150 ~ 1250mm X H20 ~ 1250mm
Heavy/middle plate via hot rolled: T50 - 200mm X W80- 1200mm X L1000-3000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM. 

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