Basic Info.Model NO. Stainless TechniqueCold Rolled, Cold
RolledMaterial Stainless Steel Surface TreatmentPolished,
PolishedUsagePipeline Transport, Boiler Pipe, Hydraulic/Automobile
Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery
Industry, Chemical IndustrySection Shape Round Standard DIN
TrademarkJIUSHUOSpecification3-219mm*0.5-6mmOriginChina
TaizhouProduct DescriptionNameASTM A312 Seamless Stainless Steel
Pipes/TubesStandardASTM, GB, JIS, DIN, EN, AISIMaterial GradeTP304
TP304L TP316 TP316L TP347 TP347H TP321 TP321H TP310 TP310STP410
TP410S TP403S31803/S32205 S32750 S32760Outer DiameterSeamless Pipe:
4mm-812.80mmWelded Pipe: single slit(Φ8mm-Φ630mm);
girth(Φ630mm-Φ3000mm),ThicknessSeamless Pipe: 0.5mm - 60mmWelded
Pipe: single slit(0.5mm-25mm);girth(3mm-45mm)Length5.8-6.1 m or as
customers' requestToleranceAcording to the Standard.Surface180G,
320G, 400G Satin / Hairline400G, 500G, 600G or 800G Mirror
finishTestUT, ET, HT, RT,ect, and others according to the
standard,or as the requests of the
customersCertificateISO9001-2008,ASME, PEDDelivery Time3-25 Days,
Depends on quantityCompany ProfileThe company is a modern chemical
plant integrating research, development, production, processing,
sales and distribution of stainless steel bright seamless tubes,
and has become one of the large-scale production and processing
plants of stainless steel tubes in East China. Provide safe and
reliable stainless steel pipe for industry.Production base No. 1 is
located in Zhangguo Industrial Science and Technology Park, Xinghua
City, Taizhou City, China's Stainless Steel City. After three years
of rapid development, the company established production base No. 2
in the same area in 2019.Specializing in the production of
stainless steel BA/EP tubes, stainless steel precision seamless
tubes, stainless steel bright seamless tubes, stainless steel heat
exchange tubes, stainless steel clean tubes, customized tubes,
etc.The materials are mainly 304, 304L, 316L, 321, 347H, 310S,
904L, 2205, 2520, 2507, C276, etc.The products are widely used in
mechanical equipment, automobile manufacturing, shipbuilding
industry, metal machining, hydraulic equipment, semiconductor,
photovoltaic, instrumentation, biomedicine, food industry,
aerospace, petrochemical, pressure vessels, heat exchangers,
automatic industrial rail transit, high-pressure boilers, water
conservancy and power and other industries.The company strictly
follows ASTM A269/ASTM A270/ASME-BPE/EN10216-5/EN10305-1/ISO 1127
standards to organize research, development, production, control
and sales of stainless steel seamless tubes. The main production
equipment is LD-80 multi roll cold rolling pipe mill, LG-60-SG
full-automatic cold rolling pipe mill, LG-40-SG full-automatic cold
rolling pipe mill, LD50, LD-30, LG-20-H cold rolling pipe mill,
LB-15T oil drawing machine, 1080 vacuum bright annealing furnace,
and other complete sets of stainless steel pipe production lines.
It has advanced steel pipe quality testing equipment and technology
such as eddy current testing, hydraulic testing, spectral testing,
hardness testing, etc.To establish a long-term integrity and
achieve immortality through quality: we take high quality, high
efficiency and credit as our business philosophy. Solve the
customer's worries and solve problems from the customer's
perspective. Keep looking at yourself and the needs of the
industry!The multi roll cold rolling mill equipped in Jiangsu
Jiangsu Metal Technology Co., Ltd. is the key equipment for
manufacturing sanitary seamless stainless steel pipes. With the
cold drawn steel pipe as the blank, the error between the internal
and external diameters of the cold rolled pipe and the wall
thickness shall be ± (0.02 ~ 0.05) mm, and the internal and
external surface finish of the pipe (R a) ≤ 0.8 μ m. The tube can
be made to a wall thickness of 0.8mm, and then polished. The
internal and external surface finish (Ra) of the tube can reach
0.2~0 four μ m .The defect of the cold rolled tube is hard, that
is, the yield coefficient is large, and it is not suitable for
flaring and bending, so the hot melt treatment (annealing) should
be carried out. In general, after the stainless steel pipe is
treated in an ordinary thermosetting furnace (milk stove), the
inner and outer surfaces of the pipe will show oxide skin and need
to be pickled, which will damage the internal and outer surface
finish of the original cold-rolled pipe and cause minor unevenness,
which cannot meet the surface finish standard of sanitary grade
pipe. Therefore, the gas shielded bright annealing furnace should
be selected.The gas shielded bright annealing furnace is composed
of bright annealing furnace body and complete ammonia decomposition
device.(1) The main structure of the bright annealing furnace body
is a round section muffle tank. The heating method of arranging
high temperature heating wires on both sides and at the bottom is
adopted. The ammonia decomposition gas is used as the
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