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Zhongyuan International Group Co., Limited

mark.sun@zyico.com,Hong Kong,Other,Hong Kong

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無料会員

Forging Steel

Hong Kong

-

900 ~ 950 / Metric Ton Get Latest Price

China

900 per Metric Ton

20 Metric Ton

-

30 days

1000 Metric Ton per Month

D/P, L/C, T/T

Forgings

今すぐお問い合わせください

タイトルまたは説明

Chemical  Requirements:
Analysis on cast. To be in accordance with table below
 
Required For Information only
Recomme ndation
C Mn Si P S Cr Mo Ni Al H
0.43/0.50 0.60/0.90 0.15/0.35 0.025 0.025 0.020 0.06 0.25 0.02/0.05 2ppm
Note: P+S: 0.04 max, Cr+Ni+Mo0.63.
 
Mechanical Properties Required :
On material at the time of supply.
 
-      Sampling:
Material shall be test per heat and per heat treat load, once Tensile and Three impact.
Test practice in accordance with ASTM A 370-10 and ASTM A-434 CL BC, test specimens shall taken with the longitudinal axis located at 1” bellow surface.
 
Surface Yield/Re 0.2% offset Tensile/Rm 2” Elongation Area Red. Charpy V Note
BHN Mpa PSI A % Z % Ft-lbs 1KSI=6.895MPa
150-210 305 590-720 16 45 21 J 1ft-lbs=1.356J
Report 0.6% eul for inform only          
25.4 MM sub surface cheking at least 4” or 102 mm from end of bar: 285-360BHN, aiming for 285-302BHN
 
General requirements:
 
Forging reduction ratio:4:1
Austenite grain: As per ASTM E112-latest, grade 5-8
Guarantee no crack, no flake, no shrnk hole, no pin hole
Mercury free: non radioactive, no welding. Decarburization is allowed for the RT and then QT bars.
Non-metal inclusion: As per ASTM E45-latest method A
 
Surface condition: rough turned, required a surface finish of 500 RMS or better
 End hole: removed the ends holes.
 Dia. Tolerance: -0/+2mm.
 Out of roundness: within 1.9 mm. Straightness: max. 2mm/m.:1.9mm, 2mm/m.
 Forged Bars surface grinding allowed, Must not remove surface bellow nominal diameter.
 Material shall be untrasonic tested in accordance with ASTM A388 4mm FBH.
Austenitize @1575-1625°F, 45 minutes per inch. Temper @900°F min, 60 minutes per inch.
 

お問い合わせ

連絡先担当者:Ms. Lucy

会社:Zhongyuan International Group Co., Limited

住所:mark.sun@zyico.com, Hong Kong, Other, Hong Kong,

To,

Ms. Lucy < Zhongyuan International Group Co., Limited >
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