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STANDARD TECHNOLOGY AGREEMENT
APPLICATION FOR THE MANUFACTURE OF AXLE
DIMENSION TOLERANCE ACCORDING TO THE TECHNICAL AGREEMENT
APPLICATIONSTEEL GRADEOD/mmWT/mm
BEARING AXLE PIPE20Mn2/SAE1527127/133/146/152 178/194/2198/9/10/12/14 16/18/22/24
DRMNG AXLE PIPEQ345B180/194/203/21914/16/18

NOTE: we can adjustment the chemical composition and specification as per customer’s requirements

STEEL GRADE AND CHEMICAL COMPOSITION

STEEL GRADE CHEMICAL COMPOSITION
20Mn2 C Si Mn
0.17-0.24 0.17-0.37 1.40-1.80
STEEL TYPE P S Cu Cr Ni Mo
No more than (%)
QUALITY STEEL 0.035 0.035 0.30 0.30 0.30 0.15
HIGH-QUALITY STEEL 0.25 0.025 0.25 0.30 0.30 0.10
premium quality steel 0.025 0.015 0.25 0.30 0.30 0.10
STEEL GRADECSiMnPSNiCrNbCuMoVAL
Q345A≤0.20≤0.50≤1.70≤0.030≤0.030≤0.50≤0.30≤0.07≤0.030.100.15-
Q345B≤0.20≤0.50≤1.70≤0.030≤0.030≤0.50≤0.30≤0.07≤0.030.100.15-
Q345C≤0.20≤0.50≤1.70≤0.030≤0.030≤0.50≤0.30≤0.07≤0.030.100.15≤0.015
Q345D≤0.18--≤0.030≤0.025≤0.50≤0.30≤0.07≤0.030.100.15≤0.015
Q345E≤0.18--≤0.025≤0.020≤0.50≤0.30≤0.07≤0.030.100.15≤0.015
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