HDPE Polyethylene Rod Dia 30mm PE Bar

 

1. Chemical Resistance - Low Cost

HDPE rod's resistance to most chemical media (acids, alkalis, salts, and organic solvents) (no reaction at room temperature) and extremely low moisture absorption (dimensional stability) make it a preferred material for chemical equipment, environmental protection projects, and wastewater treatment. For example, in chemical plant acid and alkali storage tank sealing gaskets, HDPE rod can withstand long-term corrosion from sulfuric acid (concentration <90%) and sodium hydroxide (concentration <50%) (service life >5 years). In sewage treatment plant pipe connection liners, its resistance to chloride ion corrosion (resistance to Cl⁻ in tap water) and abrasion resistance (low Akron wear value) ensure long-term leak-free equipment (maintenance intervals are extended by three times). In environmental protection equipment filter screen supports, HDPE rod's light weight (density 0.94-0.96g/cm³, 60%-70% lighter than metal) and easy machinability (customizable in complex shapes) reduce installation difficulties (cost 50%-60% lower than stainless steel).

 

2. High Toughness - Impact Resistance

HDPE rods' exceptional impact resistance (>10kJ/m² at -40°C) and low brittleness make them outstandingly suitable for low-temperature environments or dynamic loads. For example, in outdoor plastic guardrails in cold northern regions, HDPE rods can withstand hailstorms and human collisions without cracking, with a service life of >10 years. In shock absorbers for mechanical equipment, their high toughness (elongation at break ≥300%) and elasticity (compressible rebound) absorb vibration energy, reducing noise by 15-20dB. In connecting components for children's toys, HDPE rods' non-toxicity and drop resistance (no damage in drop tests) ensure safety (compliant with the EN71 toy safety standard).

hdpe plastic

 

3. Insulation - Self-lubrication

HDPE rods' excellent insulation (volume resistivity ≥10¹⁶Ω·cm) and self-lubrication (friction coefficient 0.1-0.2) give them unique advantages in the electronics and industrial transmission sectors. For example, in the insulating partitions of distribution cabinets, the voltage resistance (>20kV/mm) and flame retardancy (self-extinguishing without flame retardants, reaching UL94 HB level with flame retardants) of HDPE rods ensure circuit safety (compliant with IEC 60950 standards); in the guide rollers of conveyor belts, their self-lubrication (no lubricating oil required) and wear resistance (lifespan >2 years) reduce maintenance costs (maintenance cycle is five times longer than that of metal rollers); and in the handle insulation sleeves of power tools, the light weight (60% lighter than metal) and grip comfort (smooth surface) of HDPE rods enhance the user experience.

 

Properties	Standard	Unit	Test Data
Specific gravity	ISO 1183	g/cm3	0.96
Water absorption	ISO 62	%	＜0.01
Flammability	UL94		HB
Mechancial Properties
Yield stress	ISO 527	Mpa	29
Elongation at break	ISO 527	%	180
Tensile modulus of elasticity	ISO 527	Mpa	1210
Notched impact strength	ISO 179	kJ/m2	21.9
Notched izod impact strength	ISO 180	kJ/m2	19.1
Shore hardness	ISO 868	scale D	62