Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of efw steel pipe dn70 carbon steel pipe in China. Welcome to buy discount efw steel pipe dn70 carbon steel pipe made in China here from our factory. Quality products and low price are available.
Product introduction
How Does ERW Cut Expenses by 20%-30%?
Efficiency translates directly to cost advantages, and Huayang's 2024 cost data is conclusive. For DN300 Q345B pipes, electric resistance welded steel pipe costs 5,800 yuan/ton, SSAW 6,200 yuan/ton, and EFW 8,500 yuan/ton. The gap comes from three aspects:
First, raw material utilization. ERW's continuous strip forming has no cutting waste, with a utilization rate of 95.2%-Huayang's 2024 Shijiazhuang Municipal Project used 20,000 tons of ERW, saving 960 tons of steel compared to SSAW. Second, labor and energy. ERW lines need 3 operators per shift, while SAW needs 5 and EFW 8; ERW's power consumption is 80 kWh/ton, 40% lower than EFW's 133 kWh/ton. Third, post-weld processing. ERW's narrow heat-affected zone (0.5-1mm for HFW) avoids complex heat treatment, while EFW requires stress relief annealing for 2 hours per batch.
In the 2024 Henan Emergency Water Supply Project, choosing ERW instead of SAW saved the customer 1.2 million yuan in total costs-this is why ERW is the first choice for bulk municipal procurement.
Certifications
API 2B
API 5L
GOST
ISO 9001
EN 10219
EN 10210
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