Basic Info.
Model NO.
Austenitic Seamless Pipe for Nitric-Acid
Surface Treatment
Galvanized
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Product Name
Seamless Stainless Steel Pipes for Nitric-Acid
Keywords
Austenitic Seamless Tubes
Tube Material
904L/254smo/410/430/316lmod/S31050/
Grade
S31792/S31053/S31053
Standard
GB /T 37578 - 2019
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
Transport Package
Standard Packaging or Customized
Specification
Standard Specifications or Customized
Product Description
LONGYU Seamless Steel Pipe China Manufacturing Concentrated Nitric-Acid Resistant Steel Pipe Seamless Stainless Steel Pipes for Concentrated Nitric-Acid
Product Description
Jiangyin Longyu - a pipe and fitting factory that can process various materials.
10-year pipe material customization: ordinary stainless steel, duplex steel, super austenitic stainless steel, ferritic steel, alloy steel, titanium alloy steel, etc.
We are an all-in-one factory that combines welded pipes, seamless pipes, precision pipes, pipe fittings, etc. We have relatively fast delivery speed and control over product quality. "Guaranteed by the quality and developed by science", "Customer needs are the company's pursuit", we pursue "first-class products", "first-class reputation" and "first-class service". Our company is willing to establish honest cooperative relationships with friends from all walks of life for mutual benefit and common development. Welcome customers to Jiangyin Longyu Stainless Steel Welded Pipe Co., Ltd. for a visit and guidance.
| Process Classification | Physical polishing (MP) |
| Pickling and polishing (AP) |
| Bright annealing (BA) |
| Electrolyte pickling (EP) |
Seamless Stainless Steel Pipe For Concentrated Nitric-Acid Industry
The main structural material is a high silicon cast iron pipe. High silicon cast iron has good corrosion resistance in high and low temperature concentrated and dilute nitric-acid, but it is brittle, heavy, has poor welding performance, is difficult to operate (strictly control the heating and cooling speed), and has poor thermal conductivity.
These pipes are specifically designed to withstand the corrosion caused by concentrated nitric-acid, which is a strong oxidizing acid commonly used in various industrial processes. It has no welds or joints that could potentially be weak points for corrosion. This type of pipe is crucial in chemical processing and other industries where exposure to nitric-acid is unavoidable.
Detailed Photos
Product Parameters
| Caliber Code | OD | SCH |
Nominal Diameter
DN | Inch | Outer Diameter
mm | SCH 5S | SCH 10S | SCH 40S | SCH 80S | SCH 10 | SCH 20 | SCH 30 | STD | SCH 40 | SCH 60 | XS | SCH 80 | SCH 100 | SCH 120 | SCH 140 | SCH 160 | XXS |
| 6 | 1/8 | Φ10.29 | - | 1.24 | 1.73 | 2.41 | - | - | - | 1.73 | 1.73 | | 2.41 | 2.41 | - | - | - | - | - |
| 8 | 1/4 | Φ13.72 | - | 1.65 | 2.24 | 3.02 | - | - | - | 2.24 | 2.24 | - | 3.02 | 3.02 | - | - | - | - | - |
| 10 | 3/8 | Φ17.14 | - | 1.65 | 2.31 | 3.20 | - | - | - | 2.31 | 2.31 | - | 3.20 | 3.20 | - | - | - | - | - |
| 15 | 1/2 | Φ21.34 | 1.65 | 2.11 | 2.77 | 3.73 | - | - | - | 2.77 | 2.77 | - | 3.73 | 3.73 | - | - | - | 4.78 | 7.47 |
| 20 | 3/4 | Φ26.67 | 1.65 | 2.11 | 2.87 | 3.91 | - | - | - | 2.87 | 2.87 | - | 3.91 | 3.91 | - | - | - | 5.56 | 7.82 |
| 25 | 1 | Φ33.4 | 1.65 | 2.77 | 3.38 | 4.55 | - | - | - | 3.38 | 3.38 | - | 4.55 | 4.55 | - | - | - | 6.35 | 9.09 |
| 32 | 1.1/4 | Φ42.16 | 1.65 | 2.77 | 3.56 | 4.85 | - | - | - | 3.56 | 3.56 | - | 4.85 | 4.85 | - | - | - | 6.35 | 9.70 |
| 40 | 1.1/2 | Φ48.26 | 1.65 | 2.77 | 3.68 | 5.08 | - | - | - | 3.68 | 3.68 | - | 5.08 | 5.08 | - | - | - | 7.14 | 10.15 |
| 50 | 2 | Φ60.32 | 1.65 | 2.77 | 3.91 | 5.54 | - | - | - | 3.91 | 3.91 | - | 5.54 | 5.54 | - | - | - | 8.74 | 11.07 |
| 65 | 2.1/2 | Φ73.02 | 2.11 | 3.05 | 5.16 | 7.01 | - | - | - | 5.16 | 5.16 | - | 7.01 | 7.01 | - | - | - | 9.53 | 14.02 |
| 80 | 3 | Φ88.9 | 2.11 | 3.05 | 5.49 | 7.62 | - | - | - | 5.49 | 5.49 | - | 7.62 | 7.62 | - | - | - | 11.13 | 15.24 |
| 90 | 3.1/2 | Φ101.6 | 2.11 | 3.05 | 5.74 | 8.08 | - | - | - | 5.74 | 5.74 | - | 8.08 | 8.08 | - | - | - | - | - |
| 100 | 4 | Φ114.3 | 2.11 | 3.05 | 6.02 | 8.56 | - | - | - | 6.02 | 6.02 | - | 8.56 | 8.56 | - | 11.13 | - | 13.49 | 17.12 |
| 125 | 5 | Φ141.3 | 2.77 | 3.40 | 6.55 | 9.53 | - | - | - | 6.55 | 6.55 | - | 9.53 | 9.53 | - | 12.70 | - | 15.88 | 19.05 |
| 150 | 6 | Φ168.28 | 2.77 | 3.40 | 7.11 | 10.97 | - | - | - | 7.11 | 7.11 | - | 10.97 | 10.97 | - | 14.27 | - | 18.26 | 21.95 |
| 200 | 8 | Φ219.08 | 2.77 | 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 |
| 250 | 10 | Φ273.05 | 3.40 | 4.19 | 9.27 | 12.70 | - | 6.35 | 7.80 | 9.27 | 9.27 | 12.70 | 12.70 | 15.09 | 18.26 | 21.44 | 25.40 | 28.58 | 25.40 |
Nominal Outer Diameter
D(mm) | Nominal Thickness
S(mm) |
| | 0.51 | 0.71 | 0.89 | 1 | 1.15 | 1.24 | 1.65 | 2.11 | 2.41 | 2.77 | 3.05 | 3.18 | 3.4 | 3.96 | 4.78 |
| Φ3.175 | × | × | × | | | | | | | | | | | | |
| Φ6.35 | | | × | × | × | × | × | | | | | | | | |
| Φ9.53 | | | × | × | × | × | × | × | × | × | × | × | | | |
| Φ12.70 | | | × | × | × | × | × | × | × | × | × | × | | | |
| Φ14.30 | | | | | | | | × | × | × | × | × | | | |
| Φ15.88 | | | | | | | × | × | × | × | × | | | | |
| Φ19.05 | | | | | | × | × | × | × | × | × | × | × | × | |
| Φ25.40 | | | | | | × | × | × | × | × | × | × | × | × | × |
| Φ31.75 | | | | | | × | × | × | × | × | × | × | × | × | × |
| Machinable Materials |
| EN | TP | UNS | | STANDARD |
| 1.4301 | TP304 | S30400 | | EN 10217/7TC1&TC2 |
| 1.4306 | TP304L | | | EN 10296-2 |
| 1.4307 | TP304L | S30403 | | EN10357 |
| 1.4311 | TP304LN | S30453 | | DIN11850 |
| 1.4404 | TP316 | S31600 | | AD2000W2-W4-W10 |
| 1.4404 | TP316L | S31603 | | ASTM/ASME A/SA249 |
| 1.4406 | TP316LN | S31653 | | ASTM A269 |
| 1.4432 | TP316L | | | ASTM A270 |
| 1.4435 | TP316L | | | ASTM A554 |
| 1.4436 | TP316 | | | ASTM A632 |
| 1.4438 | TP317L | S31703 | | ASTM A778 |
| 1.4439 | TP317LNM | S31726 | | ASTM/ASME B/SB674 |
| | TP317 | S31700 | | ASTM/ASME A/SA312 |
| 1.4449 | TP317 | | | ASTM/ASME A/SA688 |
| 1.455 | TP347 | S34700 | | ASTM/ASME B/SB676 |
| 1.4541 | TP321 | S32100 | | |
| 1.4571 | TP316TI | S31653 | | |
| 1.4828 | TP309 | | | |
| 1.4833 | TP309S | S30908 | | |
| 1.4845 | TP310S | S31008 | | |
| 1.4878 | TP321H | S32109 | | |
| 1.4948 | TP304H | S30409 | | |
| 1.4835 | 253MA | S30815 | | |
| | ALLOY840 | S33400 | | |
| Ferritic Steel |
| EN | TP | UNS | | STANDARD |
| 1.4016 | TP430 | S43000 | | ASTM/ASME A/SA268 |
| 1.4509 | TP441 | | | ASTM/ASME A/SA249 |
| 1.4512 | TP409 | | | EN10357 |
| 1.4521 | TP444 | | | ASTM A/SA803 |
| | TP439M | S43932 | | EN 10296-2 |
| 1.451 | TP439M | | | ASTM A554 |
| 1.452 | TP430Ti | | | |
| | TP439 | S43035 | | |
| | TP410S | S41008 | | |
| 2.4630 | | GH3030 | | |
| Duplex Steel |
| EN | TP | UNS | GRADE | STANDARD |
| 1.4362 | | S32304 | DSS 2304 | EN 10217/7 TC1&TC2 |
| 1.4162 | | S32101 | DSS 2101 | ASTM/ASME/SA789 |
| | | S32003 | DSS 2003 | EN10357 |
| 1.441 | | S32750 | DSS 2507 | AD 2000 W2 |
| 1.4501 | | S32760 | | EN 10296-2 |
| | | S82031 | | ASTM A554 |
| 1.4462 | | S31803 | DSS 2205 | ASTM/ASME A/SA790 |
| 1.4462 | | S32205 | DSS 2205 | |
| 1.4481 | | S31260 | | |
| 1.4424 | | S31500 | | |
| 1.4466 | | S31050 | | |
| SUPERAUSTENITIC STEEL |
| EN | TP | UNS | GRADE | STANDARD |
| 1.4529 | | N08926 | 1925HMO | EN10296-2 |
| | | N08367 | | ASTM/ASME/SA249 |
| 1.4562 | | N08031 | ALLOY 31 | ASTM A269 |
| 1.4539 | | N08904 | 904L | ASTM A270 |
| 1.4547 | | S31254 | 254SMO | ASTM/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 |
| EN | TP | UNS | GRADE | STANDARD |
| 2.4602 | | N06022 | ALLOY 22 | ASTM/ASME B/SB515 |
| 2.4605 | | N06059 | ALLOY 59 | ASTM/ASME B/SB516 |
| 2.466 | | N08020 | ALLOY 20 | ASTM/ASME B/SB626 |
| 2.4633 | | N06025 | ALLOY 25 | ASTM/ASME B/SB704 |
| 1.4563 | | N08028 | ALLOY 28 | ASTM B/SB751 |
| 1.4876 | | N08800 | ALLOY 800 | ASTM/ASME B/SB730 |
| 2.4858 | | N08825 | ALLOY 825 | ASTM/ASME B/SB468 |
| 2.436 | | N04400 | ALLOY 400 | AD 2000 W2 |
| 2.4816 | | N06600 | ALLOY 600 | EN 10217/7 TC1&TC2 |
| 2.4851 | | N06601 | ALLOY 601 | |
| 2.47 | | N06058 | ALLOY 2120 | |
| 2.4675 | | N06200 | ALLOY C2000 | |
| 2.4068 | | N02201 | ALLOY 201 | |
| 2.4733 | | N06230 | ALLOY 230 | |
| 2.4819 | | N10276 | C-276 | |
| 2.4856 | | N06625 | ALLOY 625 | |
| 1.4959 | | N08811 | INCOLOY 800HT | |
| 2.4060 | | N02200 | NICKEL 200 | |
| 2.4600 | | N10675 | Hastelloy B-3 | |
| 2.4617 | | N10665 | Hastelloy B-2 | |
Company Profile
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
Address:
718 Meiyuan Street, Jiangyin, Wuxi, Jiangsu, China
Business Type:
Manufacturer/Factory
Business Range:
Health & Medicine, Industrial Equipment & Components, Instruments & Meters, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001
Company Introduction:
Jiangyin Longyu - stock stainless steel pipe large processing plant 10 years of experience in customizing stainless steel materials 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.
Jiangyin Longhe Alloy Pipe Technology Co., Ltd. is a manufacturer specializing in the production of special alloy precision clean and bright seamless pipes. The main products are stainless steel high-precision clean seamless pipes, providing pharmaceutical grade BA/EP pipes, electronic and semiconductor grade BA pipes, high-pressure stainless steel pipes, capillary tubes, alloy steel pipes, alloy precision clean seamless pipes, nickel-based alloy pipes, etc. The company strictly organizes the research and development, production, control and sales of stainless steel seamless pipes in accordance with ASTM A269/ASTM A270/ASME-BPE/EN10216-5/EN10305-1/ISO 1127 standards. The main materials are: Nickel-based alloy tubes, Hastelloy tubes, high-temperature alloy tubes, duplex steel series, and other special materials. Products are widely used in petroleum, chemical industry, aerospace, aviation, nuclear power plants, boiler heat exchangers, pharmaceuticals, food, papermaking, chemical fiber, construction and other fields. "Quality is the guarantee, science is the basis for development", "Customer needs are the company′s top priority Pursuing", we pursue "first-class products", "first-class reputation" and "first-class service". Our company is willing to establish honest cooperative relationships with friends from all walks of life for mutual benefit and common development.
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