Specifications

1.27SiMn steel tube for making mining hydraulic prop cylinder 2.Top quality
3.Golden supplier
4.OEM Acceptable
5.MOQ:20MT

27SiMn steel tube for making mining hydraulic prop cylinder

We focus on the production of 27SiMn steel tube for making mining hydraulic prop cylinder.

We focus on the production of  27SiMn steel tube for making mining hydraulic prop cylinder.

 

27simn alloy steel tube

standard: ASTM A53 GB/T8162-1999

Grade: 27simn

outside diameter:  2"-32"

wall thickness: SCH40-XXS

 

 

Dimensions tolerance

 

Grade	OD(mm)	ID (mm)	Tolerance
			OD (mm)	ID (mm)	Wall thickness deviation (mm)	Ovality (mm)	Curvature(mm/m)
45#	40-74	30-65	±.01	-0.3,-0.5	≤0.5	≤0.1	0.3
	74-98	65-85	±.01	-0.4,-0.6	≤0.5	≤0.15	0.3
	100-116	85-100	±.02	-0.4,-0.6	≤0.6	≤0.15	0.3
	124-134	110-115	±.02	-0.6,-0.8	≤0.6	≤0.20	0.3
	140-158	120-135	±.02	-0.7,-0.9	≤0.8	≤0.20	0.3
	165-176	140-150	±.02	-0.7,-0.9	≤0.8	≤0.20	0.3
	188-203	160-180	±.02	-0.7,-0.9 Honed	≤0.8	≤0.20	0.3

 

Mechanical properties

 

• Tensile strength:≥600Mpa
• Yield strength :≥520Mpa
• Elongation :>15%
• Hardness :HRB>85
• Supply condition:BKS(+SR)

 

Delivey conditions:

 

• Standard packing with plastic caps and strapped bundes.,standard weight approx 1500kg
• Commercial length 2000~10500mm,custom lengths upon request
• Surface protection

 

 

 

Production Process:

 

 

• Pretreatment : Pickling­—Phosphating—Saponification

 

 

 

• Cold drawn/cold rolled

 

 

• Annealing furnace——+SR

 

 

• Straightener—— Straightening

 

 

•  Straightness inspecting

 

 

• Dimension inspecting

 

  

 

• Sawing

 

 

 

• Lathe

 

 

• Polishing

 

 

• Products inspecting

 

 

• Finished Products

 

 

 

 

 

 

 

 

 

 

 

About our service:

 

 

 

1.Cargo track service during transporting and feedback service after cargo is loaded on board

 

 

 

2.Flexible terms of payment by

 

 

 

3.Big discount for repeat customers

 

 

 

4.Smooth delivering procedure

 

5. Payment Terms: T/T , L/C And so on.