Hot Rolling Welded Cold Rolled Seamless Tube BS 3059 Carbon Steel Boiler Tube
Specifications:
20g steel tube is GB/5310 GB grade (foreign corresponding grades: German ST45.8, Japanese STB42, American SA106B) is the most commonly used boiler tube steel, chemical composition and mechanical properties and 20 plate is basically the same. The steel at room temperature and high temperature strength, with lower carbon content, better plasticity and toughness, the cold forming and welding performance is good.
Product Catalogue:
SEAMLESS CARBON STEEL PIPES | ||
O.D | O.D tolerance | Thickness Tolerance |
17MM-914.4MM | AS REQUIREMENTS | ±10% |
Length | fixed length or random lengths according to customers' requirements | |
Standard | GB/T 8163 GB/T 8162 16MN Q345 GOST 8732-78 ASTM A53 A106 / BS 1387-1985 GB5310-1995 API 5L DIN 17175 ASME SA-106 ASME SA-192 ASME SA-209 ASME SA-210 ASME SA-213 JIS G3454 ASTM A333 DIN 1629 DIN 2488 EN 10210 EN 10216 ECT. | |
Material | Q195/Q215/Q235/Q345 GR.B X42 X46 X52 X60 X65 X70 X80(PSL1 & PSL2) STPG370 STPG38 SGP STPG410 ST37 ST52 ST35.8 ECT. | |
Product Usage | Fluid, boiler, hydraulic, gas, oil, chemical fertilizer, structure pipes etc. | |
Making method | cold drawing, hot rolling, hot expanded | |
Packing | Bevelled ends/plain ends, varnish coating/galvanized/FBE/ 2PP/2PE/3PE coating, marking, plastic caps for end protecting, packing in bundles(OD≤141.3mm) or packing in pallets | |
Main market: | Middle east, Africa, North and South America, East and West Europe, South, southeast Asia, Australia and so on | |
Place of Origin | China | |
Productivity | 1000Ton/Month | |
Processing technology available: | Plain/beveled ends, Threading, coupling and with plastic caps protected | |
Remarks | 1) Payment : TT, LC, DP are all ok | |
Description:
20g steel tube is mainly used for manufacturing high pressure and more high parameter boiler fittings, low temperature superheater, reheater and economizer and water-cooled wall, such as small diameter tube wall temperature is less than or equal to 500 DEG C heating surface pipe, and water wall tube, economizer tube, large diameter tube wall temperature is equal to or less than 450 DEG C in the steam pipe, box (economizer, water cooling wall, a low temperature superheater and reheater header), medium temperature is equal to or less than 450 DEG C piping accessories. Due to carbon steel in more than 450 DEG C long-term operation will produce graphite, the heating surface tube long-term maximum service temperature should be limited to below 450 DEG C. The steel in the temperature range, the strength can meet the superheater and steam pipeline of requirements, and has a good antioxidant properties, plasticity and toughness, welding properties of cold and hot working performance are very good and wide application.
20# Chemical Component:
Grade | Chemical Component(%) | ||||||||
C | Mn | Si | Cr | Mo | Ni | Cu | S | P | |
20# | 0.17~0.20 |
0.35~0.65 | 0.17~0.37 |
≤0.25 | 0.40~0.55 | ≤0.25 | ≤0.25 | ≤0.035 | ≤0.035 |
Mechanical Properties
Grade | Tensile Strength MPa | Yield Strength MPa | Elogantion(%) |
20# | ):≥410(42) | ≥245(25) | ≥25 |
Applications:
Used in industries as chemical engineering, petroleum, medicine, food, energy, nuclear power, aerospace,
environmental protection, boiler, gas, war industry, machinery, ship building and so on.
Competitive Advantage:
Our factory is near to raw material market and high-speed way, the producing cost is low.
Our factory have long history for producing cold rolled seamless tube, both producing and testing machine
is advanced and perfect.
We always cooperate with famous project and companies.
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