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                液壓支々柱管
                 液壓支柱¤管@ 

                牌號

                化學成分%

                C

                Si

                Mn

                P

                S

                Ni

                Cr

                Cu

                 Mo

                其他

                45

                0.42-0.50

                0.17-0.37

                0.50-0.80

                ≤0.35

                ≤0.35

                ≤0.25

                ≤0.25

                ≤0.20

                -

                -

                27SiMn

                0.24-0.32

                1.10-1.40

                1.10-1.40

                ≤0.35

                ≤0.35

                ≤0.25

                ≤0.25

                ≤0.20

                ≤0.15

                -

                牌號

                機械性能

                抗拉強度MPa

                屈服強度MPa

                延伸率%

                沖擊功J

                硬度HBS

                45

                ≥600

                ≥355

                ≥16

                ≥39

                ≤197

                27SiMn

                ≥980

                ≥835

                ≥12

                ≥39

                ≤217

                日期:2013-08-04責任編輯:管理員