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U Bend Stainless Steel Heat Exchanger Tube , Oil Metric Stainless Steel Tubing
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Brand Name:zheheng
Model Number:25mm
Certification:ISO9001 PED
Price:Negotiable
Payment Terms:L/C, T/T, D/A, D/P
Supply Ability:50TONS/30DAYS
Delivery Time:30 DAYS
Company Data
Verified Supplier
Contact Person
BAIN SHEN
Business Type:
Manufacturer Distributor/Wholesaler Agent Importer Exporter Trading Company
Officials:
No999 .wenzhou airport wenzhou city,zhejiang china
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
ASTM A269/ A213 seamless stainless steel U bend heat exchanger tube for oil industry
zheheng steel is one of ASTM A213 stainless steel seamless tube manufacturer, seamless stainless steel u bend heat exchanger tube stockholder, ss cold draw stainless steel tube exporter ,ss cold roll seamless stainless steel heat exchanger tube supplier in china ,
Our heat exchanger tube with pickling and annealing surface is very popular in boilers and heat exchangers industry , water heater industry , air-conditioning industry etc . This kind of seamless tubes are have a very important position in our all products .
Application
a) For fluid & gas transport
b) Structure & machining etc
Advantages
a) Advanced technology of cold draw machine
b) Advanced annealing machine
c) Better mechanical property
d) More precise dimension
e) Perfect inspection method and inspection equipment etc
Repair by Welding
1 For welded pipe whose diameter equals or exceeds NPS 6, and whose
nominal wall thickness equals or exceeds 0.200, it is permitted to
make weld repairs to the weld seamwith the addition of compatible
filler metal using the same procedures specified for plate defects
in the section on Repair by Welding of Specification A999/A999M.
2 Weld repairs of the weld seam shall not exceed 20 % of
the seam length.
3 Weld repairs shall be made only with the gas tungsten- arc
welding process using the same classification of bare fillerrod
qualified to the most currentAWS SpecificationA5.9 as the
grade of stainless steel pipe being repaired and as shown inTable
6. Alternatively, subject to approval by the purchaser,weld repairs
shall be made only with the gas tungsten-arc
welding process using a filler metal more highly alloyed than the
base metal when needed for corrosion resistance or other
properties.
4 Pipes that have had weld seam repairs with filler metal shall be
uniquely identified and shall be so stated and identified on the
certificate of tests. When filler metal other than that listed in
Table 6 is used, the filler metal shall be identified on the
certificate of tests.
| Standard | ASTM A554, A249, A269 and A270, A312 | |||||
| Material Grade | 201 ( Ni 0.8%), 202 (Ni 3.5%~4.5%), 301(Ni 5%) 304 (Ni 8%, Cr 18%), 316 (Ni 10%, Cr 18%), 316L (Ni10%~14%), | |||||
| Outer Diameter | 0.5mm--508mm | |||||
| Thickness | 0.25mm - 60mm | |||||
| Length | 6m or as customers' request | |||||
Tolerance | a) Outer Diameter: +/- 0.2mm | |||||
| b) Thickness: +/- 0.02mm | ||||||
| c) Length: +/- 5mm | ||||||
| Surface | 180G, 320G, 400G Satin / Hairline 400G, 500G, 600G or 800G Mirror finish | |||||
| Application | Decoration construction, upholstery, industry instrument | |||||
| Test | Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT | |||||
| Chemical Composition of Material | Material Composition | 201 | 202 | 304 | 316 | 430 |
| C | ≤0.15 | ≤0.15 | ≤0.08 | ≤0.08 | ≤0.12 | |
| Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | |
| Mn | 5.5-7.5 | 7.5-10 | ≤2.00 | ≤2.00 | ≤1.00 | |
| P | ≤0.06 | ≤0.06 | ≤0.045 | ≤0.045 | ≤0.040 | |
| S | ≤0.03 | ≤0.03 | ≤0.030 | ≤0.030 | ≤0.030 | |
| Cr | 16-18 | 17-19 | 18-20 | 16-18 | 16-18 | |
| N | 3.5-5.5 | 4-6 | 8-10.5 | 10-14 | ||
| Mo | 2.0-3.0 | |||||
Mechanical Property | Material Item | 201 | 202 | 304 | 316 | |
| Tensile Strength | ≥535 | ≥520 | ≥520 | ≥520 | ||
| Yield Strength | ≥245 | ≥205 | ≥205 | ≥205 | ||
| Extension | ≥30% | ≥30% | ≥35% | ≥35% | ||
| Hardness (HV) | <253 | <253 | <200 | <200 | ||
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Company Profile
Wenzhou Zheheng Steel Industry Co.,Ltd
Zheheng steel is one incorporate of manufacturer, Exporter ,consultant ,stockist company specialized in the area of stainless steel tubing , pipe fittings ,Flanges and other stainless steel grade accessories . It is one-stop-shop company ,our team have more than 20 years experience in stainless steel field ,especially in heat exchanger tubing and large diameter pipes with ultra-long, ultra-thin, ultra-thick or ultra-large various and some special-purpose projects .
After years of efforts,we now became more and more stronger , we have consist of four company respectively located in wenzhou(headquarter),lishui,chengdu city,two factorys of ss stainless pipe workshop in lishui ,another one ss pipe fittings workshop located in wenzhou ,one domestic sales company located in chengdu.
On Time, On Budget, For Over 20 Years
Our reputation is for providing competitive prices, technical services and on time deliveries for every project for over 20 years. Our inventory is computerized so our employees can respond quickly to all your requests. If a specific product is not in stock when you request it, we guarantee same day shipping or shortest lead time available.
Our regular feture products are 304/304L,316L, 321,310s,austentic serious ,duplex steel 2205 ,hastelloy c276,inconel 625 ,and super stainless steel 904L , All of our products meet or exceed AISI/ASTM A213 ,A269,A312,EN 10216,GHOST 9941 ,GB,JIS standard. per your specific requirements and include full documentation.
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