Wenzhou Zheheng Steel Industry Co.,Ltd
To provide safe and reliable high quality stainless steel ,nickel alloy pipes and fittings
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Seamless Stainless Steel U Bend Tube for heat exchanger ,stainless steel U-bend exhaust tubing
zheheng steel is one incorporate of manufacturer, trader ,consultant ,stockist company specialized in the area of stainless steel tubing , pipe fittings ,valves 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 .
seamless stainless steel u bend tube manufactuer, stainless steel u bend tube exporter, stainless steel u bend exhaust tubing stockholder ,stainless steel u shape tube supplier in china
Product description :
| Material: | 201.202.301.302.304.304L.310S.316.316L.321.430.430A.309S. 2205.2507.2520.430.410.440.904Lect. Or Customized |
| Standard: | GB, AISI, ASTM, ASME, EN, BS, DIN, JIS |
| Size: | ANSI /ASME size is under,other standard of size is for ready choice,O.D.:0.23''to 48''(5.8-1219mm)W.T.:0.04''to 2''(1.0-50.8mm) |
| Length: | Max.18 Meter,NPS 1/8''-48'' Schedule:5/5S,10/10S,20/20S,40/40S,80/80S,120/120S,160/160S according to ANSI B36.19/36.10 |
| Surface: | Satin Finish(180#.240#.320#).,Bright Finish(400#,600#,mirror),Mill Finish(2B),Hairline-Finish(HL/Brushed),Ti-gold, Glossy matt,dull and so on. |
| Production Range: | |
| Russia Standard | 08Х17Т,08Х13,12Х13,12Х17,15Х25Т,04Х18Н10,08Х20Н14С2, 08Х18Н12Б, 10Х17Н13М2Т,10Х23Н18,08Х18Н10,08Х18Н10Т, 08Х18Н12Т,08Х17Н15М3Т, 12Х18Н10Т,12Х18Н12Т,12Х18Н9, 17Х18Н9, 08Х22Н6Т, |
| European Standard | 1.4301,1.4307,1.4948,1.4541,1.4878,1.4550,1.4401,1.4404,1.4571, 1.4438,1.4841,1.4845,1.4539,1.4162, 1.4462, 1.4362, 1.4410, 1.4501 |
| Chemical Composition about stainless steel pipe | ||||||||
| Grade | C | Si | Mn | P | S | Ni | Cr | Mo |
| 201 | ≤0.15 | ≤0.75 | 5.5-7.5 | ≤0.06 | ≤0.03 | 3.5-5.5 | 16.0-18.0 | - |
| 202 | ≤0.15 | ≤1.0 | 7.5-10.0 | ≤0.06 | ≤0.03 | 4.-6.0 | 17.0-19.0 | - |
| 301 | ≤0.15 | ≤1.0 | ≤2.0 | ≤0.045 | ≤0.03 | 6.0-8.0 | 16.0-18.0 | - |
| 302 | ≤0.15 | ≤1.0 | ≤2.0 | ≤0.035 | ≤0.03 | 8.0-10.0 | 17.0-19.0 | - |
| 304 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤0.03 | 8.0-10.5 | 18.0-20.0 | - |
| 304L | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.035 | ≤0.03 | 9.0-13.0 | 18.0-20.0 | - |
| 309S | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤0.03 | 12.0-15.0 | 22.0-24.0 | - |
| 310S | ≤0.08 | ≤1.5 | ≤2.0 | ≤0.035 | ≤0.03 | 19.0-22.0 | 24.0-26.0 | - |
Heat Treatment Assurance
A full-automatic natural gas furnace with 24 meters in length.The real temperature tolerance could be within 10℃.
QUALITY CONTROL
1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking
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