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High Precision Galvanized Steel Heat Exchanger Tube ASTM B673 Uns N08925 Seamless and Welded Austenitic Stainless Steel

Zhongzheng Stainless Steel Co., Ltd.
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US$ 300 - 500 MOQ: 1 Ton
Key Specifications
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Type:
Stainless Steel Pipes
Certification:
ISO, ROHS, IBR, AISI, ASTM, GB, EN, DIN, JIS, Other
Shape:
Round
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Payment Methods:
Port of Shipment:
China
Delivery Detail:
8 days

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Type Stainless Steel Pipes
Certification ISO, ROHS, IBR, AISI, ASTM, GB, EN, DIN, JIS, Other
Shape Round
Grade Other
Technique Other
Surface Treatment Polished
Standard ASTM, AISI, GB, JIS, DIN, EN, Other
Specification OEM
Trademark ZHONGZHENG INTERNATIONAL
Origin China

Basic Info.
Model NO.
Urea Grade Austenitic Stainless Seamless Pipe
Type
Welded
Technique
Cold Drawn
Material
Alloy Steel
Surface Treatment
Varnishing
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Section Shape
Square
Product Name
Urea Austenitic Seamless Stainless Steel Pipe
Keywords
Urea Stainless Steel Pipe
Min Thickness
0.5mm
Max Length
25 M
Tube Material
904L/254smo/410/430/316lmod/S31050/
Standard
GB /T 37578 - 2019
Grade
S31792/S31053/S31053
OEM & ODM Custom
Accept
Sample
Accept
Common Standards 1
ASTM A312(ASME SA312)/ASTM A213(ASME SA213)
Common Standards 2
GB/T 14976/GB 13296/GOST 9941/En 10216-5/JIS G3459
Common Grade 1
304/L/H/Ln, 316/L/H/Ln/Ti/Lmod, 310S/H,317/L,321/H
Common Grade 2
347H/Hfg, N08904(904L), N08367, S31254(254smo)
Application 1
Large Boilers, Heat Exchangers, Condensers
Application 2
Evaporators and Fluid Transport
Trademark
ZHONGZHENG
Transport Package
Standard Packaging or Customized
Specification
Standard Specifications or Customized
Origin
China
Process ClassificationPhysical polishing (MP)
Pickling and polishing (AP)
Bright annealing (BA)
Electrolyte pickling (EP)


Urea Grade Austenitic Seamless Stainless Steel Pipe

Urea-grade stainless steel is austenitic stainless steel specially developed for high-temperature carbamate solutions (such as urea production). Urea grade stainless steel has strong corrosion resistance in high-temperature carbamate solution. The environment is generated when ammonium carbamate is used as a medium for the reaction of ammonia and carbon dioxide in urea production. It has strong resistance to local corrosion generated in the high-temperature carbamate environment of the high-pressure part of the urea equipment. 2522 stainless steel has little weight loss and local corrosion in the Huey test. 725LN is a fully austenitic structure and has a low content of non-metallic impurities. It is mainly used in the manufacture of urea production equipment.


This type of steel pipe is mainly used in the core components of synthetic ammonia and urea industry. The raw materials are obtained by electro-slag remelting.



In addition to focusing on cleanliness control in the production process, the focus is on the control of heat treatment links. They are all ultra-pure stainless steels, which mainly solve the problem of selective corrosion of ferrite in the ammonia environment during urea synthesis.


Austenitic stainless steel pipe has a stable austenite group at room temperature. The steel contains about 18% Cr, more than 8% Ni, and about 0.1% C. It has high corrosion resistance, good cold processing, and good toughness, plasticity, welding, and non-magnetic properties. It is widely used in heat exchangers, non-magnetic condensers, evaporators, and fluid transportation in chemical, oil refining, boilers, food, and other industries.



Super austenitic stainless steel pipe has higher cleanliness, uniformity, mechanical properties, finer structure, better surface quality, better resistance to local corrosion of harsh media, and better process manufacturing performance than ordinary austenitic stainless steel pipe.


It is a stainless steel developed for urea production based on 316L, with additional restrictions on the minimum content of Cr, Ni, and Mo; the purpose is to obtain a fully austenitic structure of stainless steel after the final heat treatment and to make the ferrite content not exceed 0.6%, and at the same time, requirements are put forward for intergranular corrosion tendency experiments and selective corrosion.


This material is specially used in the urea industry. Therefore, urea and 316l stainless steel are called. Urea and stainless steel need to undergo Hugh test and selective corrosion test.

 
 

Detailed Photos


Product Parameters

 

Caliber CodeODSCH
Nominal Diameter
DN		InchOuter Diameter
mm		SCH    5SSCH    10SSCH    40SSCH     80SSCH     10SCH     20SCH     30STDSCH     40SCH     60XSSCH     80SCH     100SCH     120SCH     140SCH     160XXS
61/8Φ10.29-1.24 1.73 2.41 ---1.73 1.73 
2.41 2.41 -----
81/4Φ13.72-1.65 2.24 3.02 ---2.24 2.24 -3.02 3.02 -----
103/8Φ17.14-1.65 2.31 3.20 ---2.31 2.31 -3.20 3.20 -----
151/2Φ21.341.65 2.11 2.77 3.73 ---2.77 2.77 -3.73 3.73 ---4.78 7.47 
203/4Φ26.671.65 2.11 2.87 3.91 ---2.87 2.87 -3.91 3.91 ---5.56 7.82 
251Φ33.41.65 2.77 3.38 4.55 ---3.38 3.38 -4.55 4.55 ---6.35 9.09 
321.1/4Φ42.161.65 2.77 3.56 4.85 ---3.56 3.56 -4.85 4.85 ---6.35 9.70 
401.1/2Φ48.261.65 2.77 3.68 5.08 ---3.68 3.68 -5.08 5.08 ---7.14 10.15 
502Φ60.321.65 2.77 3.91 5.54 ---3.91 3.91 -5.54 5.54 ---8.74 11.07 
652.1/2Φ73.022.11 3.05 5.16 7.01 ---5.16 5.16 -7.01 7.01 ---9.53 14.02 
803Φ88.92.11 3.05 5.49 7.62 ---5.49 5.49 -7.62 7.62 ---11.13 15.24 
903.1/2Φ101.62.11 3.05 5.74 8.08 ---5.74 5.74 -8.08 8.08 -----
1004Φ114.32.11 3.05 6.02 8.56 ---6.02 6.02 -8.56 8.56 -11.13 -13.49 17.12 
1255Φ141.32.77 3.40 6.55 9.53 ---6.55 6.55 -9.53 9.53 -12.70 -15.88 19.05 
1506Φ168.282.77 3.40 7.11 10.97 ---7.11 7.11 -10.97 10.97 -14.27 -18.26 21.95 
2008Φ219.082.77 3.76 8.18 12.70 -6.35 7.04 8.18 8.18 10.31 12.70 12.70 15.09 18.26 20.62 23.01 22.23 
25010Φ273.053.40 4.19 9.27 12.70 -6.35 7.80 9.27 9.27 12.7012.70 15.09 18.26 21.44 25.40 28.58 25.40 
Nominal Outer Diameter
D(mm)		Nominal Thickness
S(mm)

0.510.710.8911.151.241.652.112.412.773.053.183.43.964.78
Φ3.175×××











Φ6.35

×××××







Φ9.53

××××××××××


Φ12.70

××××××××××


Φ14.30






×××××


Φ15.88





×××××



Φ19.05




×××××××××
Φ25.40




××××××××××
Φ31.75




××××××××××


It is used in industrial environments with harsher working conditions and stronger corrosion resistance, which ordinary austenitic stainless steel cannot meet, such as media environments such as butyl acetate, acetic acid, formic acid, terephthalic acid, polyvinyl chloride in the petrochemical industry; media environments such as sulfuric acid, ferric sulfate, soda ash, phosphoric acid in inorganic chemicals; crude oil desalting and vacuum distillation in crude oil refining; superheaters, reheaters, and final reheaters in supercritical boilers, etc.

 

Machinable Materials
ENTPUNS
STANDARD
1.4301TP304S30400
EN 10217/7TC1&TC2
1.4306TP304L

EN 10296-2
1.4307TP304LS30403
EN10357
1.4311TP304LNS30453
DIN11850
1.4404TP316S31600
AD2000W2-W4-W10
1.4404TP316LS31603
ASTM/ASME A/SA249
1.4406TP316LNS31653
ASTM A269
1.4432TP316L

ASTM A270
1.4435TP316L

ASTM A554
1.4436TP316

ASTM A632
1.4438TP317LS31703
ASTM A778
1.4439TP317LNMS31726
ASTM/ASME B/SB674

TP317S31700
ASTM/ASME A/SA312
1.4449TP317

ASTM/ASME A/SA688
1.455TP347S34700
ASTM/ASME B/SB676
1.4541TP321S32100

1.4571TP316TIS31653

1.4828TP309


1.4833TP309SS30908

1.4845TP310SS31008

1.4878TP321HS32109

1.4948TP304HS30409

1.4835253MAS30815


ALLOY840S33400

Ferritic Steel
ENTPUNS
STANDARD
1.4016TP430S43000
ASTM/ASME A/SA268
1.4509TP441

ASTM/ASME A/SA249
1.4512TP409

EN10357
1.4521TP444

ASTM A/SA803

TP439MS43932
EN 10296-2
1.451TP439M

ASTM A554
1.452TP430Ti



TP439S43035


TP410SS41008

2.4630 
GH3030

Duplex Steel 
ENTPUNSGRADESTANDARD
1.4362
S32304DSS 2304EN 10217/7 TC1&TC2
1.4162
S32101DSS 2101ASTM/ASME/SA789


S32003DSS 2003EN10357
1.441
S32750DSS 2507AD 2000 W2
1.4501
S32760
EN 10296-2


S82031
ASTM A554
1.4462
S31803DSS 2205ASTM/ASME A/SA790
1.4462
S32205DSS 2205
1.4481
S31260

1.4424
S31500

1.4466
S31050

SUPERAUSTENITIC STEEL
ENTPUNSGRADESTANDARD
1.4529
N089261925HMOEN10296-2


N08367
ASTM/ASME/SA249
1.4562
N08031ALLOY 31ASTM A269
1.4539
N08904904LASTM A270
1.4547
S31254254SMOASTM/ASME A/SA312




ASTM/ASME B/SB676




AD 2000 W2




ASTM A632




ASTM/ASME B/SB674




ASTM/ASME A/SA688




ASTM/ASME B/SB674




ASTM/ASME A/SA468
NICKEL ALLOYS
ENTPUNSGRADESTANDARD
2.4602
N06022ALLOY 22ASTM/ASME B/SB515
2.4605
N06059ALLOY 59ASTM/ASME B/SB516
2.466
N08020ALLOY 20ASTM/ASME B/SB626
2.4633
N06025ALLOY 25ASTM/ASME B/SB704
1.4563
N08028ALLOY 28ASTM B/SB751
1.4876
N08800ALLOY 800ASTM/ASME B/SB730
2.4858
N08825ALLOY 825ASTM/ASME B/SB468
2.436
N04400ALLOY 400AD 2000 W2
2.4816
N06600ALLOY 600EN 10217/7 TC1&TC2
2.4851
N06601ALLOY 601
2.47
N06058ALLOY 2120
2.4675
N06200ALLOY C2000
2.4068
N02201ALLOY 201
2.4733
N06230ALLOY 230
2.4819
N10276C-276
2.4856
N06625ALLOY 625
1.4959
N08811INCOLOY 800HT
2.4060 
N02200NICKEL 200
2.4600 
N10675Hastelloy B-3
2.4617
N10665Hastelloy B-2

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FAQ

Q1: Are you a trading company or manufacturer?

We are a processing type company specializing in processing stainless steel for 304/304L large diameter thick wall stainless steel welded pipe and other materials. Prompt delivery, low price, high quality, unique insight into various materials of stainless steel, rolled round, straight seam, ring seam.

Q2: What are the company's main products?

304/304L stainless steel welded pipe processing, Thick-walled stainless steel welded pipe processing, Large diameter stainless steel welded pipe processing, Customizable stainless steel shrimp elbow, etc.

Q3:What are the advantages of your company?

We have many professionals, technical personnel, more competitive prices, and better after-sales service than other stainless steel companies.

Q4: What do you do to control product quality?

Before loading into the container, all products will go through a pre-shipment inspection by our professional QC group. UT test is called is applied to steel material, according to Sep 1921 C/c, D/d, or E/e level based on different types of steel.

Q5:What is your MOQ?

Our MOQ for each order is around 25 Tons(one container), customers can mix different types of steel to reach this quantity.

Q6: Can we visit your company and factory? 

Yes, warmly welcome! We can book the hotel for you before you come to China and arrange for our driver to our airport to pick you up when you come



Product Tags: Seamless Hastelloy Nickel Alloy Pipe/Tube , N08904 , ASTM A240

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Zhongzheng Stainless Steel Co., Ltd.
1Yr
Business license
Location
Tianjin, China
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