• Model NO.：304 310 316 316L
• Surface Treatment：Polish, Pickling, Bright Annealing
• Outside Diameter：4mm - 914.4mm;8mm-630mm
• Wall Thickness：0.6mm - 30mm;0.5mm-45mm
• Length：5.8-6.1 M or as Customers′ Request
• Inspection：Dekra,TUV
• Transport Package：Woven Bags, Plastic Bags, Cap Ends, Plywood Cases
• Specification：8mm*0.5mm-3000mm*45mm
• Trademark：ZJDP
• Origin：China
• HS Code：73061100
• Production Capacity：23000 Ton,Year

MaterialCSiMnS(≤)P(≤)CrNiMootherC20#0.17-0.230.17-0.370.35-0.650.0350.035≤0.25≤0.30
 Cu≤0.25CK5#0.42-0.500.17-0.370.50-0.800.0350.035≤0.25≤0.30
 Cu≤0.25Q345B≤0.20≤0.551.00-1.600.040.04V:0.02-0.15Nb:0.015-0.06Ti:0.02-0.20Alt≥0.015
ST52
E355
16Mn
≤0.20≤0.551.00-1.600.0450.045V:0.02-0.15Nb:0.015-0.06Ti:0.02-0.2016Mn25Mn0.22-0.300.17-0.370.70-1.000.0350.035≤0.25≤0.25
 
 27SiMn0.24-0.321.10-1.401.10-1.400.030.03
 
 
 
 42SiMn0.39-0.451.10-1.401.10-1.400.030.03
 
 
 
 42CrMo0.38-0.450.17-0.370.50-0.800.0250.0250.90-1.20
 0.15-0.25
  
 
Hydraulic&pneumatic liner actuator standard/size/precise
Working methodCylinder ID (mm)Length
(m)Straightness
(mm/m)Tolerance on IDTolerance on WTRoughness
(μm)Cold drawn40-320≤12M0.2-0.5/±5%0.8-1.6Cold rolling30-100≥12M0.2-0.5 / ±5%0.8-1.2Cold drawn-honed40-5008M0.2-0.3H8-H9±5%0.2-0.8Cold drawn-skived40-4009M0.2-0.3H8-H9±5%≤0.4Hole boring-honed320-4008M0.2-0.3H7-H9±8%≤0.8Hole boring-skived320-4009M0.2-0.3H8-H9±8%≤0.4
 
 
Mechanical property
Final Supply Conditioncold finished
(hard)    (BK)cold drawn and stress-relieved(BK+S)
Hardness HBParametersT.SElongationT.SY.SElongation20#≥550≥8≥520≥470≥1217545#≥650≥5≥600≥520≥1220716Mn≥640≥5≥600≥520≥1519025Mn≥640≥5≥600≥510≥1519527SiMn≥840≥5≥800≥720≥10230