Cold drawn St45 20# Mild Steel Tubing Honing Steel Pipes For Hydraulic Cylinder , DIN 2391 EN 10305 - Product

Other Specification :  Cold Drawn St45 20# Mild Steel Tubing Honing Steel Pipes For Hydraulic Cylinder , DIN 2391 EN 10305 Quick Detail: Products: Hydraulic Cylinder Tubes / Precision Steel Tube Standard: DIN 2391 / EN 10305 /GB8713-88 / GB/T3639-2000 Grade: St52 / E355 / St45 / SAE1026 / 20# / 27SiMn SIZE:(mm) OD: 45mm ~ 500mm WT: 3mm ~ 50mm Description: 1. Variety - - - - Processing Form | I.D.mm | Length | Straightness | I.D.tolerance | I.D.Roughness(RA) | Cold-rolled | 30-100 | 24M | 0.3-1.0/1000 | H8-H10 | 0.4-1.6um | Cold-drawn | 30-250 | 24M | H8-H10 | 0.8-1.6um | Hone | 40-500 | 24M | H8-H9 | 0.4-0.8um | SRB | 50-250 | 24M | H8 | 0.1-0.4um | - - - - 2. Material Specification And Ref. Document ST52,BK+S OR NBK,DIN2391 OD:45-50mm WT:3-50mm 3. Chemical Compisition(%) - - - - Steel Grade | Chemical Composition,% | C | Si | Mn | P | S | Cr | | St45 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.250 | ST52(E355) | 0.22 | 0.55 | 1.6 | 0.025 | 0.025 | 0.25 | SAE1026 | 0.22-0.28 | 0.15-0.35 | 0.60-0.90 | 0.040 | 0.050 | / | 27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.035 | 0.035 | 0.300 | 20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.250 | - - - - 4.Mechanical Properties - - - - Delivery Condition | BK Cold Finished(hard) | BKS Cold Drawn And Stress-relieved | Steel Grade | Rm Mpa | Elongation A5(%) | RmMPa | ReHMPa | Elonggation A5(%) | ST45 | 550 | 5 | 520 | 375 | 15 | ST52(E355) | 640 | 5 | 600 | 52

View Profile