Name: China QU Series Crane Rail China Standard Manufacturers Suppliers Factory - Made in China - GNEE RAILWAY RAILWAY
Brand: GNEE RAILWAY
SKU: 266659916

GNEE RAILWAY RAILWAY Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of qu series crane rail china standard in China, also supports customized service with low price. Please feel free to buy cheap qu series crane rail china standard made in China here from our factory.

Product Introduction

GB crane rails, according to GB standards, are special rails specially made for crane operation and must meet strict quality and performance requirements. Among many models, GB QU120 crane rails have attracted much attention for their outstanding load-bearing capacity and good stability. Their unique cross-sectional shape and reliable manufacturing process enable them to perform well in high-intensity operations such as loading and unloading at large ports and material transfer at large metallurgical enterprises, becoming an important basic component to ensure the smooth progress of industrial production.

QU series crane rails include specifications such as QU70, QU80, QU100 and QU120, using materials such as U71Mn U75V to ensure that the rails have good mechanical properties. The tensile strength of QU series crane rails is not less than 880MPa, the yield strength is not less than 580MPa, and the elongation after fracture is not less than 9%. Its hardness is usually required to be between HB300 - 380. Therefore, QU120 can be well used in large and heavy cranes, providing them with stable operating tracks to ensure the safe and efficient operation of cranes.

crane rail

Product Specifications

Rail Type		SIZE(mm)
		height	bottom width	head width	waist depth
Light rail	8KG	65	54	25	7
	9KG	63.5	63.5	32.1	5.9
	12KG	69.85	69.85	38.1	7.54
	15KG	79.37	79.37	42.86	8.33
	18KG	90	90	40	10
	22KG	93.66	93.66	50.8	10.72
	24KG	107	90	51	10.9
	30KG	107.95	109.95	60.33	12.3
Heavy rail	38KG	134	114	68	13
	43KG	140	114	70	14.5
	45KG	145	126	67	14.5
	50KG	152	132	70	15.5
	60KG	176	150	73	16.5
Crane rail	QU70	120	120	70	28
	QU80	130	130	80	32
	QU100	150	150	100	38
	QU120	170	170	120	44

Product Packaging & Delivery

The surface of the rails is marked with the model, specification, manufacturer and other symbols.

To ensure that the rails are not damaged during transportation and storage, they are usually packaged in bundles.

qu120 rail

Product production process

Steelmaking: Select high-quality steel raw materials, melt them in a converter or electric furnace, and cast them into ingots or continuous casting billets.

Heating: Heat the billet to about 1100-1200℃ to improve plasticity.

Rolling: After multiple rolling passes, the billet is rolled into a rail of specified shape and size.

Cooling: Use natural cooling, air cooling or spray cooling to improve the rail structure.

Straightening: Use a straightening machine to make the rail reach the specified straightness and flatness.

Flaw detection: Use ultrasonic, magnetic powder and other flaw detection technologies to detect rail defects.

Sawing: Saw the rail into a certain length as required.

Surface treatment: Use painting, galvanizing, heat treatment and other methods to improve rail performance.

Inspection and packaging: Comprehensively inspect the quality of the rails, and qualified products are packaged and stored or shipped.

Get More

GNEE RAILWAY RAILWAY Crane Rail Inspection Method

Chemical composition analysis is carried out by chemical analysis method or spectral analysis method.

Mechanical property tests include tensile test, hardness test, etc. The tensile test is carried out in accordance with relevant standards, and the hardness test usually adopts the Brinell hardness test method.

Surface quality and geometric dimensions are inspected by naked eye observation, measuring tool measurement and other methods.

crane rail