what is stainless steel
Stainless steels bond around a key material property: excellent corrosion resistance, attributable to high chromium content (> 10.5% by mass) and low carbon content (<1.2% by mass). Beyond the corrosion...
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Difference between Submerged Arc Welding and High Frequency Welding
Submerged arc welding is an arc welding under flux layer combustion method. Welding arc between the wire and the weldment burning heat of the arc and arc welding wire ends near the base metal and solder...
The Strip Width Deviation Affects the Quality of Welded Steel Pipe
Frequency welded pipe production process, affecting the quality of the elements have more than one pipe, the main raw materials, welding technology and roll count which is beginning to adjust. Key to...
Deformation Strengthening of High-pressure Alloy Pipe
High-pressure alloy pipe deformation strengthening is using the method of deformation of steel reinforcement. Also known as the strain hardening or work hardening. The strength of the material at the...
Precision Tube length Measurement Method
According to the technological requirements of different manufacturers, precision tubes length measurement systems with a variety of length measurement methods. There are the following: 1, The grating...
Spiral Weld Seam
Spiral weld seam has the following several types: 1. Spiral strip end weld: steel head that spiral weld on steel or steel weld head and tail; 2. Two spiral butt weld: spiral cut is to link the two together...
Production process of hot rolled steel pipe
Production process of hot rolled steel pipe: 1. Main production process (main inspection process) of hot rolled seamless steel pipe: pipe blank preparation and inspection > pipe blank heating >...
How to Detect the Quality of Spiral Steel Pipe
Spiral pipe factory should be done before the mechanical performance test and flattening test, and flaring test, and to achieve the standard requirements. Spiral steel pipe quality inspection method is...
Quenching technology of straight seam welded pipe
Straight seam welded pipe surface quenching and tempering heat treatment is usually carried out by induction heating or flame heating. The main technical parameters are surface hardness, local hardness...
4 Differences Between Steel Pipes and Steel Tubes
At Chengdu Derbo Steel, we’ve been providing customers all over the world with steel tubes and pipes. With that much time spent in the business combined with our extremely knowledgeable staff, we’re...
Why Chengdu Derbo Steel is Industry Leading Suppliers of High-Quality Steel Tubing
Providing customers all over the world with high quality steel pipe and tube, Chengdu Derbo Steel is an industry leading manufacturer of steel tubing. Able to produce steel tubing in a variety of...
We transported pipes to Karakul, Uzbekistan
Recently, Chengdu Debo Steel transported 75 pcs steel pipes from Buliekai, Xinjiang, filled with 7 trucks. The destination was Karakul, Uzbekistan. The size of the tube is 1inch to 56 inches, and the...
ASTM A350 LF2 Flange for Low Temperature
ASTM A350 (ASME SA350) is the standard specification for carbon steel and low alloy steel forged flanges and flanged fittings for low temperature services. Common use grade is ASTM A350 LF2 Class 1, corresponding...
Introduce about Alloy 330
General Properties Alloy 330 (UNS N08330) is an austenitic nickel-iron-chromium alloy developed to provide excellent resistance to carburizing and oxidizing atmospheres at elevated temperatures. With...
The Coated Pipe 3LPE and 2LPE
The three-layer polyethylene (3LPE) coating anti-corrosion steel pipe and the two-layer polyethylene (2LPE) coating anti-corrosion steel pipe both belong to the anti-corrosion steel pipe. The...
Steel sector PMI in Hebei increases to 39.7 percent in May
In May this year, the purchasing managers' index (PMI) of the steel sector in China's Hebei Province rose to 39.7 percent, up 2.9 percentage points month on month, as announced by the Hebei Province...
China steel prices hit three-year low on demand woes
BEIJING, May 26 (Reuters) - Steel rebar prices in China hit their lowest in three years this week, underscoring flagging growth in the world's second-largest economy, particularly in its weak property...
China's steel sheet and plate exports up 50.7 percent
In the January-April period of this year, China's steel sheet/plate exports totaled 18.08 million mt, up 50.7 percent year on year, according to the Chinese customs authorities. In April alone, China...
Iron ore slump shows Chinese economy is still struggling
China’s economic recovery falters Iron ore has been on a downtrend for almost two months. Its price on the Singapore Exchange fell to a year-to-date low of $94.20/t last week, down more than 20%...
Trade data point towards reglobalisation – Stainless Espresso
Trade data point towards reglobalisation Since 2006, there have been no significant changes in the trend towards more globalised and open trade, according to analysis by ING Groep NV. Although...