Specifications

1 ID30-250mm W.T.2-30mm
2 ISO certificated DIN2391 En10305
3 Straightness:0.3~1mm/m
schedule 80 steel pipe astm a53

Commodity Name: schedule 80 steel pipe astm a53

we can supply all kinds of steel pipes such as hot rolled seamless steel pipes ,cold drawn seamless steel pipes,honed pipes,cold drawn welded tubes(DOM tubes).

Variety 

Processing	Cylinder Diameter	Straightness	Size Accuracy	W.T/mm	Inner Bore Roughess
Cold drawn	ID30-250	0.3	H9-H11	±10%	0.4~1.6um
Honed tube	ID50-250	0.3	H7-H9	±10%	<0.4um

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

 

Dimension tolerance

ID size	ID deviation (mm)
	H7	H8	H9	H10
30	+0.021 0	+0.033 0	+0.052 0	+0.084 0
>30~50	+0.025 0	+0.039 0	+0.062 0	+0.100 0
>50~80	+0.030 0	+0.046 0	+0.074 0	+0.120 0
>80~120	+0.035 0	+0.054 0	+0.087 0	+0.140 0
>120~180	+0.040 0	+0.063 0	+0.100 0	+0.160 0
>180~250	+0.046 0	+0.072 0	+0.115 0	+0.185 0
>250~315	+0.052 0	+0.081 0	+0.130 0	+0.210 0
>315~400	+0.0527 0	+0.089 0	+0.140 0	+0.230

 

Delivey conditions:

• Standard packing with plastic caps and strapped bundles.
• Commercial length 2000~10500mm,custom lengths upon request
• Surface protection

• Pretreatment :  Acid cleaning- Parkerizing

 

• Cold drawn/Cold rolled

• Annealing furnace—— Stress-relieving (+SR)

• Straightener—— Straightening/ Leveling

•  Straightness Inspecting

• Dimension Inspecting

  

• Sawing off not good parts

 

• Lathe

• Surface Polishing

•  Finished honed tube

• Application:Hydraulic cylinder tube