China Top-Level Seamless Hydraulic Cylinder Carbon Steel Honed Tube

Product Description

Hydraulic Cylinder Honed Tube
Standard: ASTM A519, DIN2391, EN10204-1
Grade: 1020, C45, ST52, ST52.3, 27SiMn, 25Mn
Technology: Cold Drawn, Cold roll, Honed, Skived, Burnished
Application: construction machinery, metallurgical machinery, plastic machinery, mining machinery, road construction machinery, hydraulic and pneumatic cylinders
Size

Manufacturing ProcessTube IDLengthStraightness Dimensional AccuracyTolerance on IDInner Bore RoughnesshoningΦ40-800mm≤13m0.2-0.3mmH8~H9±8%<=0.8 um

gradeCSiMnPSCrNiCuVAl10200.17-0.230.17-0.370.35-0.65<=0.035<=0.035<=0.25<=0.30<=0.25--C450.42-0.500.17-0.370.50-0.80<=0.035<=0.035<=0.25<=0.30<=0.25--16Mn0.13-0.190.20-0.601.20-1.60<=0.030<=0.030<=0.030<=0.30<=0.25--27SiMn0.24-0.321.10-1.401.10-1.40<=0.035<=0.035<=0.30<=0.30<=0.20--ST52<=0.20<=0.50<=1.70<=0.035<=0.035<=0.30<=0.50<=0.30<=0.15-ST52.3<=0.18<=0.50<=1.70<=0.030<=0.25<=0.30<=0.50<=0.30<=0.15≥0.015

GradeCold finished (hard) (BK)Cold finished (hard) (BK+S)HardnessImpact Value (-20°C) JT.S bN/mm2Elongation 85%T.S bN/mm2Y.S SN/mm2Elongation 85%1020≥550≥8≥520≥400≥15170--C45≥680≥5≥630≥520≥12190--16Mn≥640≥5≥600≥520≥14160--27SiMn≥780≥5≥700≥580≥10220--ST52≥660≥8≥620≥520≥15190--ST52.3≥660≥8≥620≥520≥15190≥27

ID sizeID Tolerance
WT ToleranceH7H8H9H10H1130+0.0210+0.0330+0.0520+0.0840+0.1300


±5%
>30-50+0.0250+0.0390+0.0620+0.1000+0.1600>50-80+0.0300+0.0460+0.0740+0.1200+0.1900>80-120+0.0350+0.0540+0.0870+0.1400+0.2200>120-180+0.0400+0.0630+0.1000+0.1600+0.2500>180-250+0.0460+0.072+0.1150+0.1850+0.2900>250-315+0.0520+0.0810+0.1300+0.2100+0.3200>315-800+0.0570+0.0890+0.1400+0.2300+0.3600

ODToleranceODTolerance≤Φ40±0.15Φ160~200±0.80Φ40~60±0.25Φ200~240±1.00Φ60~80±0.30Φ240~340±1.50Φ80~100±0.40Φ340~440±2.00Φ100~160±0.50Φ440~520±2.50