In 2018, 11 high-end market projects for the boom pipe and other products of HYST created new sales volume of 140,000 tons and new profit of more than CNY 270 million. In 2019, HYST newly initiated 8 projects with production, marketing and research integration targeting for high-end product sales volume of more than 185,000 tons.

Driven by the third round of product variety restructuring, HYST has built a good brand image, and has shown the world “China Strength” along with the large engineering machinery manufacturers at home and abroad.

Hydraulic Support Pipes of Extra-large Diameter Contribute to Coal Mining

To address the extremely thick coal seam mining at home and abroad, ZMJ (Zhengzhou Coal Mining Machinery (Group) Co., Ltd.) with the reputation of “The First Brand in Coal Mining Machinery Industry in China”, planned to develop the extra-high hydraulic support higher than 8 meters then. Weighing the pros and cons, ZMJ cancelled the plan to develop the new product with the imported steel pipe, instead, it awarded all orders amounting to nearly 2000 tons of steel pipes to HYST.

To ensure the properties of strength, toughness, corrosion resistance and impact resistance of the steel pipe can meet the customer’s requirements, HYST strictly controlled all the relevant production processes and finally succeeded in producing the hydraulic support pipe of extra-large diameter with yield strength up to 890MPa.

It’s worth mentioning that the feature Water Dragon in Coal Sea——the first episode of Super Coal Mining broadcast on CCTV, displayed the 8.8-meter-high super mining device manufactured with the high-end steel pipe supplied by HYST.

Moreover, HYST conquered the “white dot” problem on the cold-drawn oil cylinder pipe that has plagued the industry for years. Hence, the oil cylinder series pipe, manufactured by HYST, won the approval of Caterpillar——the world’s largest manufacturer of engineering machinery and mine equipment, marking the admittance to the world’s top mechanical processing pipe market.

Boom Pipe Thrives

Making the most of the advantages of the profound technological accumulation, ultra-pure steel smelting technology, precise heat treatment and rolling technologies, HYST developed BJ890 crane boom pipe with high strength, which has been applied in the crawler crane with the maximum tonnage: 4500 tons. The crane boom pipe manufactured by HYST, with good quality and performance, has won the praise and recognition from XCMG (Xuzhou Construction Machinery Group Co., Ltd.), Zoomlion (Zoomlion Heavy Industry Science & Technology Co., Ltd.), Liugong (Guangxi Liugong Machinery Co., Ltd.) and other crane manufacturers.

In January of 2019, the boom pipe won “Gold Cup Prize of Metallurgical Product Quality" of 2018. In February of 2019, HSM890 boom pipe with extra-heavy wall thickness and high strength manufactured by HYST contributed to SCC12000TM 800-ton crawler crane with the maximum height of the wind power hoisting construction in China officially coming off the assembly line, which broke the height record of 150 meters, and can fully meet the requirements of hoisting 2.5MW draught fan below 160 meters.

Moreover, Q690 port machinery boom pipe manufactured by HYST successfully got admitted to the market of port machinery pipe. In addition, HYST developed the highest grade boom pipe—HSM960 boom pipe.

Rotary Drilling Pipe Takes Half of the Market Share

In recent years, the rotary drilling pipe manufactured by HYST built a good brand image, and hence lots of customers, including XCMG, Zoomlion and Sany, ordered from HYST in large volume. The market share of the rotary drilling pipe of HYST gradually increased, and now the share has reached above 50%.

Moreover, HYST participated in the formulation of the national mandatory standard GB34109 Seamless Steel Tubes for Drill Rod of Rotary Digging Machine.

HYST will continuously strengthen the efforts to carry forward product development, and go all out to seize the high ground of the market with the high ground of the technology. Currently, HYST has the research of the deep deoxidation and desulfurization technologies and research of the effect of the microalloy element on the casting billet quality underway, and is sparing no effort to develop the steel with higher level, high strength and good quality.