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K11789
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Desscription K11789 Sheet, Inventory K11789 Flat bars, Forgings K11789 Stocklist property from Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working or rough turned machining. Technical specification - ASTM A387 - 2017.

TECHNICAL DATA SHEET - Grade K11789

MATERIAL TECHNICAL STANDARDS: ASTM A387 - 2017

MATERIAL TYPE: Alloy steel
CHEMICAL COMPOSITION (Mass weight - %)
C (％): 0.05 ~ 0.17

Mn (％): 0.40 ~ 0.65
Si (％): 0.50 ~ 0.80

P (％)≤:   0.025
S (％)≤:   0.025
Cr (%):    1.00 ~ 1.50
Mo (%):   0.45 ~ 0.65

Ni (%): -

V (%): -

Nb (%): -

Cu (%): -

B (%): -

W (%): -

Al (%): -

Ti (%): -

MECHANICAL PROPERTIES UNDER ROOM TEMP.

Tensile strength, σb/≥ MPa: 415 ~ 585

Yield strength, σ0.2/MPa: 240

Elongation, δ ≥(％): 19.0
Reduction of area, ф ≥ (％): -
Hardness via heat treatment /HBW: 255 MAX.

PRODUCT DESCRIPTION
The alloy is usually produced by BEF /EAF + VD followed by electroslag refining (ESR) 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.

TECHNICAL SALES ASSISTANCE & SERVICE
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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