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2020-10-02 19:15
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Company Profile
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Contact：kechun(Mr.)
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Area：Shanghai
Address：Shanghai
Website：http://www.kcsteelpipe.com/ http://kechun.daisina.com/
Shell and tube heat exchanger stainless steel tube Tube condenser stainless steel tube Double tube plate heat exchanger
Austenitic seamless stainless steel tubes are used for shell and tube heat exchangers and tube condensers. Stainless steel has excellent thermal conductivity, corrosion resistance at high temperatures, and other properties. This type of heat exchange equipment can work efficiently.
Stainless steel heat exchanger pipes are produced in accordance with FDA and GMP requirements. There are two sizes of inch and metric systems. Some customers are mainly from the medical equipment production industry. The commonly used pipe diameters are metric specifications: 10mm, 12mm, 14mm, etc.
1.Material
In order to better control and manage the consistency of materials in the production and circulation process, and to avoid the occurrence of mixed materials, we separately process several materials in austenitic stainless steel.
UNS |
S30403 |
S30400 |
S31603 |
S31600 |
S32100 |
EN |
1.4306 |
1.4301 |
1.4435 |
1.4436 |
1.4541 |
ASTM |
TP304L |
TP304 |
TP316L |
TP316 |
TP321 |
2.Cold working process
A combination of cold rolling and cold drawing is adopted. Both cold rolling and cold drawing are oil-based lubrication (not butter + lime powder lubrication), which helps to improve the consistency of the pickling color of the inner and outer surfaces of the pipeline, to ensure that the inner and outer surfaces are smooth and delicate, after annealing treatment Can obtain high-quality metallographic structure.
3.Production standards
ASTM: A213 A269
DIN EN ISO: EN 10216-5、DIN 28180、
4.Product specification
A213 A269 |
EN 10216-5 |
|||
Tube Size |
thickness |
OD |
thickness |
|
inch |
mm |
mm |
mm |
mm |
1/8" |
3.18 |
0.51、0.71、0.89 |
6 |
1.0、1.2、1.5 |
3/16" |
4.76 |
0.51、0.71、0.89、1.24、1.65 |
8 |
1.0、1.2、1.5 |
1/4" |
6.35 |
0.51、0.71、0.89、1.24、1.65、2.11 |
10 |
1.0、1.2、1.5 |
5/16" |
7.94 |
0.71、0.89、1.24、1.65、2.11 |
10.2 |
1.0、1.2、1.6、2.0 |
3/8" |
9.53 |
0.71、0.89、1.24、1.65、2.11、2.77 |
12 |
1.0、1.6、2.0 |
1/2" |
12.7 |
0.71、0.89、1.24、1.65、2.11、2.77 |
12.7 |
1.0、1.2、1.6、2.0、2.3、2.6、2.9、3.2 |
5/8" |
15.88 |
0.89、1.24、1.65、2.11、2.77 |
13.5 |
1.0、1.2、1.6、2.0、2.3、2.9 |
3/4" |
19.05 |
0.89、1.24、1.65、2.11、2.77 |
14 |
1.0、1.6、2.0 |
1" |
25.4 |
0.89、1.24、1.65、2.11、2.77 |
16 |
1.0、1.2、1.6、2.0 |
5.Surface delivery status
5.1 Solid solution pickling
5.2 Bright annealing
The maximum hardness of the pipeline after natural gas or bright heat treatment:HV200/HBW192 HRB90
6.Nondestructive testing
Hydrostatic pressure detection: maximum pressure 20Mpa, time 5 seconds
Eddy current testing: perform inspections according to standard sample tubes, in accordance with standards ASTM E426, EN 10246-2.
FAQ
Q: Can stainless steel heat exchange tubes be machined by electrolysis?
A: It can be machined by electrolysis. We have a professional ECM cooperative factory, or you can process it yourself. Processing requirements you must first put forward to us, we need to control the quality of pipeline production.
Q: How much pressure can the heat exchange tube bear?
A: Our pipes are all finished products of hydraulic test or eddy current inspection, and ultrasonic inspection can be done more precisely. Production and inspection are all in accordance with the manufacturing standards. If you have more precise product requirements, you can ask us.
Q: What industries are our heat exchanger tubes mainly used in?
A: Urea industry, pharmaceutical pure water industry, condenser industry, etc
Q: Can stainless steel heat exchange tubes be customized for pipes beyond production standards?
A: You can provide the material, outer diameter, wall thickness, tolerance, roughness, hardness and other requirements of steel pipe beyond the standard. We will work out the production plan and delivery time after negotiation.
http://www.kcsteelpipe.com/
