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UNS N06035 (DIN W.Nr. 2.4643) is an upgraded version of N06030, a nickel-based alloy optimized for corrosion resistance. Its chemical composition includes nickel (Ni) as the base element, chromium (Cr) 32.25%-34.25%, molybdenum (Mo) 7.60%-9.00%, with maximum 2.00% iron (Fe), 1.00% cobalt (Co), 0.60% tungsten (W), 0.50% manganese (Mn), 0.60% silicon (Si), 0.05% carbon (C), 0.40% aluminum (Al), 0.03% phosphorus (P), 0.02% sulfur (S), 0.30% copper (Cu), and 0.2% vanadium (V).
Manufactured to ASTM B622 standards, the seamless pipe offers flexible dimensions: outer diameter (OD) from 1mm to 325mm, wall thickness from 0.2mm to 20mm, and a maximum length of 12m (custom specifications available upon request). Physical properties include a density of 8.18 g/cm³ and a melting range of 1332-1361℃, making it suitable for extreme industrial environments.
The alloy delivers extraordinary performance in wet process phosphoric acid production (a key application in fertilizer manufacturing), outperforming N06030 and standard stainless steels. It resists localized corrosion and chloride-induced stress corrosion cracking, while high chromium content ensures resistance to oxidizing acids (nitric acid and nitric acid mixtures) and molybdenum provides moderate resistance to reducing acids. It also resists caustic dealloying in hot sodium hydroxide.
Produced by a factory with 30 years of seamless pipe experience, the product is manufactured using 18 seamless production lines and 3 perforation lines, with an annual output of 30,000 tons of austenitic and duplex steel pipes. The facility holds ISO9001:2015 certification and is approved by BV, ABS, CCS, DNV/GL, TUV, LR, KR, and other global classification societies.
Raw materials are sourced from leading Chinese mills (Tingshan, Tisco, Bao Steel, Yongxing, Walsn) and undergo MTC (PMI) checking, tensile strength testing, and surface/dimension inspection. In-production processes are monitored by dedicated personnel, and pre-shipment inspections include appearance testing, PMI testing, non-destructive testing (UT, ET), and physical/chemical analysis. Third-party inspections are accepted.
N06035 is an upgrade version of N06030.
It hasextraordinary resistance in the wet process phosphoric acid production environment, which is widely used in fertilizer production.
Its performance in this environment is far superior to N06035 and stainless steels.
It can also resist localized corrosion and chloride-induced stress corrosion cracking in chlorides containing media.
Because of its high chromium content, N06035 is extremely resistant to other oxidizing acids, such as nitric acid and mixtures containing nitric acid.
As a result of its appreciable molybdenum content, it possesses moderate resistance to reducing acids,and unlike other nickel-chromium-molybdenum alloys, it is very resistant to caustic dealloying in hot sodium hydroxide.
APPLICATIONS
Wet process phosphoric acid production evaporators,pickling equipment using nitric acid and hydrofluoric acid,
caustic neutralizing systems, and chemical process industry systems involving nitric acid and chlorides.
The pipe is widely used in wet process phosphoric acid production for evaporators. It is also suitable for pickling equipment using nitric acid and hydrofluoric acid, caustic neutralizing systems, and chemical process industry systems involving nitric acid and chlorides. Its corrosion resistance makes it a reliable choice for fertilizer production and other aggressive chemical environments.
Our pipe factory has 296 employees ,including 4 senior engineers,18 engineers and 38 professional technicians.
We can produces 30,000tons of austenitic steel and duplex steel pipes annually with 18 seamless production lines and 3 perforation production lines.
Our pipe factory has been certified to the ISO9001:2015 quality management system and certified by various classification societies (such as BV, ABS,CCS,DNV/GL,TUV,LR,KR etc).
Chemical Composition | ||||||||||||||
% | Ni | Cr | Mo | Fe | Co | W | Mn | Si | C | Al | P | S | Cu | V |
MIN | BALANCE | 32.25 | 7.60 | |||||||||||
MAX | 34.25 | 9.00 | 2.00 | 1.00 | 0.60 | 0.50 | 0.60 | 0.05 | 0.40 | 0.03 | 0.02 | 0.30 | 0.2 | |
Specification | Physical Properties | ||||
Seamless pipe and tube | ASTM B 622 | DENSITY | 8.18g/cm3 | MELTING RANGE | 1332-1361℃ |
Specifications Of UNS N06035/DIN W. NR. 2.4643 Seamless Pipe |
OD: 1mm-325mm
WALL THICKNESS: 0.2mm-20mm
Max Length:12m (Special specifications are available as required)
Production Processes |
Quality Control Of Huashang Duplex Steel Seamless Pipe |
1. Raw Materials
Our raw materials come from well-know mills in China, such as Tingshan, Tisco, Bao Steel, Yongxing, Walsn.....
We will do MTC checking (PMI), tensile strength test, surface/dimension inspection for raw material.
2. Production
Specially assigned person shall follow up and check the process flow card and finally keep the copy.
3. Before Shipment
Our quality inspection team responsible for different categories of products. We will conduct routine appearance testing, PMI testing, non-destructive testing. We also equipped with a professional lab that can do physical and chemical properties test. we also can accept the third inspection, such as BV, LR, TUV, ABS, DNV-GL ect.
METALLOGRAPHIC TEST
IMPACT TEST
TENSILE TEST
EDDY CURRENT TESTING
ULTRASONIC TESTING
HARDNESS TEST
TEST BLOCK MEASUREMENT SIZE
MEASURE AFTER PULLING
PULL UP TEST BLOCK
Packaging and Containerization |
Certificate |
Quality management system certificate
Occupational health and safety management system certification
Environmental management system certificate
CCS certificate
TUV-PED certificate
UNS N06035 is specifically optimized for wet process phosphoric acid environments, offering superior corrosion resistance compared to N06030 and stainless steels. Its alloy composition ensures long-term durability in the harsh conditions of fertilizer manufacturing.
Yes, we offer custom dimensions (OD, wall thickness, length) beyond the standard range. Our team can tailor the product to your application requirements, including compliance with specific industry standards.
Quality testing includes raw material inspection (MTC/PMI, tensile strength, surface/dimension), in-production process monitoring, and pre-shipment tests (appearance, PMI, non-destructive testing, metallographic test, impact test, tensile test, hardness test). A professional lab conducts physical and chemical property analysis.
The pipe complies with ASTM B622 standards, and the factory is certified to ISO9001:2015, ISO45001:2018, and ISO14001:2015. It also holds CCS factory approval and TUV-PED certification (2014/68/EU), ensuring global compliance.
UNS N06035 (DIN W.Nr. 2.4643) is an upgraded version of N06030, a nickel-based alloy optimized for corrosion resistance. Its chemical composition includes nickel (Ni) as the base element, chromium (Cr) 32.25%-34.25%, molybdenum (Mo) 7.60%-9.00%, with maximum 2.00% iron (Fe), 1.00% cobalt (Co), 0.60% tungsten (W), 0.50% manganese (Mn), 0.60% silicon (Si), 0.05% carbon (C), 0.40% aluminum (Al), 0.03% phosphorus (P), 0.02% sulfur (S), 0.30% copper (Cu), and 0.2% vanadium (V).
Manufactured to ASTM B622 standards, the seamless pipe offers flexible dimensions: outer diameter (OD) from 1mm to 325mm, wall thickness from 0.2mm to 20mm, and a maximum length of 12m (custom specifications available upon request). Physical properties include a density of 8.18 g/cm³ and a melting range of 1332-1361℃, making it suitable for extreme industrial environments.
The alloy delivers extraordinary performance in wet process phosphoric acid production (a key application in fertilizer manufacturing), outperforming N06030 and standard stainless steels. It resists localized corrosion and chloride-induced stress corrosion cracking, while high chromium content ensures resistance to oxidizing acids (nitric acid and nitric acid mixtures) and molybdenum provides moderate resistance to reducing acids. It also resists caustic dealloying in hot sodium hydroxide.
Produced by a factory with 30 years of seamless pipe experience, the product is manufactured using 18 seamless production lines and 3 perforation lines, with an annual output of 30,000 tons of austenitic and duplex steel pipes. The facility holds ISO9001:2015 certification and is approved by BV, ABS, CCS, DNV/GL, TUV, LR, KR, and other global classification societies.
Raw materials are sourced from leading Chinese mills (Tingshan, Tisco, Bao Steel, Yongxing, Walsn) and undergo MTC (PMI) checking, tensile strength testing, and surface/dimension inspection. In-production processes are monitored by dedicated personnel, and pre-shipment inspections include appearance testing, PMI testing, non-destructive testing (UT, ET), and physical/chemical analysis. Third-party inspections are accepted.
N06035 is an upgrade version of N06030.
It hasextraordinary resistance in the wet process phosphoric acid production environment, which is widely used in fertilizer production.
Its performance in this environment is far superior to N06035 and stainless steels.
It can also resist localized corrosion and chloride-induced stress corrosion cracking in chlorides containing media.
Because of its high chromium content, N06035 is extremely resistant to other oxidizing acids, such as nitric acid and mixtures containing nitric acid.
As a result of its appreciable molybdenum content, it possesses moderate resistance to reducing acids,and unlike other nickel-chromium-molybdenum alloys, it is very resistant to caustic dealloying in hot sodium hydroxide.
APPLICATIONS
Wet process phosphoric acid production evaporators,pickling equipment using nitric acid and hydrofluoric acid,
caustic neutralizing systems, and chemical process industry systems involving nitric acid and chlorides.
The pipe is widely used in wet process phosphoric acid production for evaporators. It is also suitable for pickling equipment using nitric acid and hydrofluoric acid, caustic neutralizing systems, and chemical process industry systems involving nitric acid and chlorides. Its corrosion resistance makes it a reliable choice for fertilizer production and other aggressive chemical environments.
Our pipe factory has 296 employees ,including 4 senior engineers,18 engineers and 38 professional technicians.
We can produces 30,000tons of austenitic steel and duplex steel pipes annually with 18 seamless production lines and 3 perforation production lines.
Our pipe factory has been certified to the ISO9001:2015 quality management system and certified by various classification societies (such as BV, ABS,CCS,DNV/GL,TUV,LR,KR etc).
Chemical Composition | ||||||||||||||
% | Ni | Cr | Mo | Fe | Co | W | Mn | Si | C | Al | P | S | Cu | V |
MIN | BALANCE | 32.25 | 7.60 | |||||||||||
MAX | 34.25 | 9.00 | 2.00 | 1.00 | 0.60 | 0.50 | 0.60 | 0.05 | 0.40 | 0.03 | 0.02 | 0.30 | 0.2 | |
Specification | Physical Properties | ||||
Seamless pipe and tube | ASTM B 622 | DENSITY | 8.18g/cm3 | MELTING RANGE | 1332-1361℃ |
Specifications Of UNS N06035/DIN W. NR. 2.4643 Seamless Pipe |
OD: 1mm-325mm
WALL THICKNESS: 0.2mm-20mm
Max Length:12m (Special specifications are available as required)
Production Processes |
Quality Control Of Huashang Duplex Steel Seamless Pipe |
1. Raw Materials
Our raw materials come from well-know mills in China, such as Tingshan, Tisco, Bao Steel, Yongxing, Walsn.....
We will do MTC checking (PMI), tensile strength test, surface/dimension inspection for raw material.
2. Production
Specially assigned person shall follow up and check the process flow card and finally keep the copy.
3. Before Shipment
Our quality inspection team responsible for different categories of products. We will conduct routine appearance testing, PMI testing, non-destructive testing. We also equipped with a professional lab that can do physical and chemical properties test. we also can accept the third inspection, such as BV, LR, TUV, ABS, DNV-GL ect.
METALLOGRAPHIC TEST
IMPACT TEST
TENSILE TEST
EDDY CURRENT TESTING
ULTRASONIC TESTING
HARDNESS TEST
TEST BLOCK MEASUREMENT SIZE
MEASURE AFTER PULLING
PULL UP TEST BLOCK
Packaging and Containerization |
Certificate |
Quality management system certificate
Occupational health and safety management system certification
Environmental management system certificate
CCS certificate
TUV-PED certificate
UNS N06035 is specifically optimized for wet process phosphoric acid environments, offering superior corrosion resistance compared to N06030 and stainless steels. Its alloy composition ensures long-term durability in the harsh conditions of fertilizer manufacturing.
Yes, we offer custom dimensions (OD, wall thickness, length) beyond the standard range. Our team can tailor the product to your application requirements, including compliance with specific industry standards.
Quality testing includes raw material inspection (MTC/PMI, tensile strength, surface/dimension), in-production process monitoring, and pre-shipment tests (appearance, PMI, non-destructive testing, metallographic test, impact test, tensile test, hardness test). A professional lab conducts physical and chemical property analysis.
The pipe complies with ASTM B622 standards, and the factory is certified to ISO9001:2015, ISO45001:2018, and ISO14001:2015. It also holds CCS factory approval and TUV-PED certification (2014/68/EU), ensuring global compliance.
