1)Professional & skilled, reliable.
2)One-stop total solution
3)Ready stock goods with fast delivery
4)Customizable: Non-standard sizes are also available
5)Small quantity is acceptable
6)Cash back: Refund or replacement for any product faulty
Commodity name | Din2391 BKS seamless H8 H9 tolerance honed st52 hydraulic cylinder tube | |
Cylinder ID | 30-250mm | |
Thickness | 2-30mm | |
Standard | EN10305/DIN2391 | |
ASTM /AISI | ||
GB/T 8162/ 8163 | ||
Material | China | 20# 45#(CK45) 16Mn(ST52) 25Mn 27SiMn etc. |
German | St42-2 DIN1626,St45-8 DIN17175,St45-4 DIN1629,CK45,St52 DIN1629 | |
American | ASTM A53-B,ASTM A106-B,ASTM A178-C,ASTM A1045,ASTM A210-C etc. | |
Length | as your requirements max: 14m/45.9feet | |
Surface treatment | Black painting, black varnish, transparent oil, or according to the customer’s acquirement | |
Technique | Seamless cold drawn /cold rolling /honing/skiving and roller | |
Usage | 1.Hydraulic cylinder /pneumatic cylinder 2. Pumps 3.Motor shells 4.Transmission shafts 5.Transmission roller steel pipes 6.Casing Tube 7.Boiler pipe | |
Package | 1. Bundle packing. 2. Bevelled end or plain end or warnished as your required. 3. Plastic caps at ends. | |
MOQ | as your needs | |
Delivery time | within 25 days |
Mechanics performance: | ||||
Material | Tensile strength | Yield strength | Elongation | Hardness |
CK20/20#/AISI1020 | >520 N/ mm2 | >375 N/mm2 | >15% | >85HB |
CK45/45#/AISI1045 | >600 N/ mm2 | >520 N/ mm2 | >15% | >85HB |
ST52/16Mn/Q345D | >600 N/ mm2 | >520 N/ mm2 | >15% | >85HB |
25Mn/STKM 13C-T | >600 N/ mm2 | >530 N/ mm2 | >15% | >85HB |
Variety : | |||||
Processing | Cylinder | Straightness | Size | W.T/mm | Inner Bore Roughess |
Cold drawn/cold rolled | ID30-250 | 0.3 | H9-H11 | ±10% | 0.4~1.6um |
Honed tube | ID50-250 | 0.3 | H7-H9 | ±10% | <0.4um |
Tolerance on ID: | ||
No. | Inside diameter | ID machining allowance |
1 | 300-80 | 0.5-0.8 |
2 | 81-125 | 0.7-1.1 |
3 | 125-200 | 0.9-1.2 |
4 | 200-250 | 1-1.5 |
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