10705AJ / 12CrWVNb datasheet,10705AJ / 12CrWVNb chemical,10705AJ / 12CrWVNb heat treatment
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10705AJ / 12CrWVNb
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Material specifications of 10705AJ datasheet, 10705AJ Chemical, 10705AJ Ring forging, 10705AJ Bar, 10705AJ Sheet - steelmaking, ESR, Blooming,Forging, Rolling, Heat treatment, Straightened, 100% Ultrasonic test, Cold working, Machined. We also possess advanced precision machining equipments for further processing.
TECHNICAL DATASHEET - Grade 10705AJ & 12CrWVNb

Official test certification: issued by TUV - SGS BV
MATERIAL CATEGORY: Martensitic high content chromium bars and forge piece
CHEMICAL COMPOSITION (WEIGHT %)
C (%):     0.12 ~ 0.16
Si (%):     ≤ 0.10
Mn (%):   0.36 ~ 0.70
P (%)≤:   0.020
S (%)≤:   0.015
Cr (%):    10.00 ~ 11.0
Ni (%):     0.35 ~ 0.65
Mo (%):    0.30 ~ 0.50
W (%):     1.50 ~ 1.90
V (%):      0.14 ~ 0.20
Nb (%):     0.05 ~ 0.11
N (%):       0.04 ~ 0.08
Cu (%):     ≤ 0.10 
Form: Bar, Flat bar, Forge piece
Condition: Q + T 675℃)
Tensile strentgh, ab/MPa: 930
Yield strength σ0.2/MPa: 760
Elongation δ(%): 14.0
Reduction of area ф(%): 32.0
Hardness | HRB: 277 ~ 331
Impact Value (V-Notch charpy), RT: 20J
HEAT TREATMENT PRACTICE
Quenching: 1100 ℃ min., oil cooled
Tempering: 650 ℃ min., air cooled
Stress relieving: 620 ℃
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
PRODUCT PROFILE
Round bar / Wire rod (Diameter):  0.50mm to 550mm
Square bar / Flat bar: 3mm 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 W200 ~ 1000mm X L1000 ~ 2000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM. 

TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL (lh.steel@hotmail.com ) our resident team of qualified production engineers.
  

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