Crane Boom Pipe
 
1、 Product Features
Pipe used for crane boom is an important load bearing component of crane. HYST has self-developed crane boom pipe products such as HSM450, HSM770, HSM890 and HSM960 series, and presided over the formulation of the national standard GB/T 30584-2014. It features such advantages as high strength, excellent tenacity at low temperature, high dimensional precision, premium surface quality and good weldability. Thus, the product has reached the leading level internationally.

2、 Production Range
OD: 42mm～760mm                      WT: 4mm～120mm

3、Steel Grade and Properties
Technical standard: GB/T 30584 or technical agreement.

Properties of Steel Pipe
Steel Grade	Delivery Condition	Yield （MPa）	Tensile （Mpa）	Elongation （%）	Absorbed-energy (AKV2/J)
HSM450	Normalization or Quenching+Tempering	560～720	≥450	≥19	-20℃	≥27
HSM770	Quenching+Tempering	820～1000	≥770	≥15	-20℃	≥55
HSM890	Quenching+Tempering	960～1100	≥890	≥14	-20℃	≥45
HSM960	Quenching+Tempering	980～1150	≥960	≥10	-40℃	≥27

 Note: Steel pipe can be developed and produced to meet the users’ personalized requirements according to their demands.

4、Surface Quality
The surface roughness should not be more than Ra12.5.

5、 Application Fields
Crane boom pipe can be used in the following fields: the load-bearing trusses of crawler crane, tire-type crane, port crane and other equipment.