K91061 datasheet,K91061 chemical,K91061 heat treatment

K91061
2019-10-30 10:41:57   Origin:   Remark:0 Click:

Description K91061 Forgings, Inventory K91061 Sheet, Ex-stock K91061 Round bar properties from Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working or rough turned machining. Technical specification - ASTM A182 - 2018.
TECHNICAL DATA SHEET -  Grade UNS K91061

MATERIAL TECHNICAL STANDARDS: ASTM A182 - 2018
MATERIAL TYPE: 9Cr - 1W - 1Mo - 0.20V Alloy steel
CHEMICAL COMPOSITION (Mass weight - %)
C (%):     0.09 ~ 0.13
Mn (%):   0.30 ~ 0.60
Si (%):    0.10 ~ 0.50
P (%)≤:   0.020
S (%)≤:   0.010
Cr (%):    8.50 ~ 9.50
Mo (%):   0.90 ~ 1.10
Ni (%):     ≤ 0.40
Nb (%):   0.06 ~ 0.10
N (%):     0.04 ~ 0.09
V (%):     0.18 ~ 0.25
W (%):    0.90 ~ 1.10
B (%):     0.0003 ~ 0.006
Al (%):    ≤ 0.020
TYPICAL MECHANICAL PROPERTIES
Tensile strength, σb/≥ MPa: 620
Yield strength, σ0.2/MPa: 440
Elongation, δ ≥(%): 18.0
Reduction of area, ф ≥ (%): 40.0
Hardness via heat treatment /HBW: 248 Max.
HEAT TREATMENT PRACTICE
Condition: Solution annealed 1040 ~ 1080 Deg. C
Cooling medium: air cool
Tempering temperature: 740 ~ 780 Deg. C
PRODUCT DESCRIPTION
The alloy is usually produced by BEF / BEF + AOD / EAF, followed by electroslag refining (ESR or 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' specific requirements.
Round bar / Wire rod (Diameter): 0.50mm to 650mm
Square bar / Flat bar: 3mm to 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 400mm X W20 ~ 1000mm X L1000 ~ 3500mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical inquiry. pleased to EMAIL 
our resident team of qualified production engineers, Email: sales@ccsteels.com.

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