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UNS N08028/DIN W. NR. 1.4563 SEAMLESS PIPE
Huashang
7507120000
UNS N08028 (DIN W.Nr. 1.4563) is a highly alloyed austenitic stainless steel. Its chemical composition is optimized for corrosion resistance: chromium (Cr) 26.00%-28.00%, nickel (Ni) 30.00%-34.00%, molybdenum (Mo) 3.00%-4.00%, copper (Cu) 0.60%-1.40%, with iron (Fe) as the balance. Trace elements are strictly controlled: maximum 0.03% carbon (C), 2.50% manganese (Mn), 1.00% silicon (Si), 0.03% phosphorus (P), and 0.03% sulfur (S).
The seamless pipe complies with ASTM B668 and ASTM B829 standards. It offers versatile dimensions: outer diameter (OD) from 1mm to 325mm, wall thickness from 0.2mm to 20mm, and a maximum length of 12m (special specifications available upon request). Physical properties include a density of 8.00 g/cm³ and a melting range of 1370-1400℃, ensuring compatibility with diverse industrial applications.
The alloy’s high chromium and molybdenum content provides resistance to both oxidizing and reducing acids, while copper enhances its performance in sulfuric acid environments. This makes it ideal for handling hydrochloric, sulfuric, phosphoric, and acetic acids in chemical processes.
Produced by a factory with 30 years of seamless pipe manufacturing experience, the product benefits from 18 seamless production lines and 3 perforation lines, supporting 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 classification societies.
Quality control spans the entire production cycle: raw materials are sourced from renowned mills (Tingshan, Tisco, Bao Steel, Yongxing, Walsn) and undergo MTC (PMI) checking, tensile strength testing, and surface/dimension inspection. In-production monitoring and pre-shipment tests (appearance, PMI, non-destructive testing, physical/chemical analysis) ensure reliability. Third-party inspections are welcome.
Alloy 028 is a highly alloyed austenitic stainless steel providing resistance to both oxidizing and reducing acids and salts due to its contents of chromium and molybdenum.
And the presence of copper increases its resistance to sulfuric acid.
APPLICATIONS
Equipment handling reducing chemical environments and chemical process industry involving hydrochloric, sulfuric, phosphoric and acetic acids.
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 | ||||||||||
% | Cr | Ni | Fe | Mo | C | Mn | Si | Cu | P | S |
MIN | 26.00 | 30.00 | BALANCE | 3.00 | 0.60 | |||||
MAX | 28.00 | 34.00 | 4.00 | 0.03 | 2.50 | 1.00 | 1.40 | 0.03 | 0.03 | |
Specification | Physical Properties | ||||
Seamless pipe and tube | ASTM B 668, B 829 | DENSITY | 8.00g/cm3 | MELTING RANGE | 1370-1400℃ |
Specifications Of UNS N08028/DIN W. NR. 1.4563 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 N08028’s high alloy content (Cr, Ni, Mo, Cu) delivers superior resistance to both oxidizing and reducing acids, especially sulfuric acid. Its balanced composition ensures resistance to a broader range of corrosive media compared to standard stainless steels.
Yes, we offer custom dimensions beyond the standard 1mm-325mm OD, 0.2mm-20mm wall thickness, and 12m length. Contact our team to discuss your specific requirements, and we will tailor the product to your needs.
The factory is certified to ISO9001:2015 (quality management), ISO45001:2018 (occupational health and safety), and ISO14001:2015 (environmental management). It also holds CCS factory approval and TUV-PED certification (2014/68/EU), ensuring compliance with international standards.
We maintain a large inventory of 10,000,000 units, so standard sizes can be delivered within a short lead time. For custom orders, delivery depends on production requirements, and our team will provide a detailed timeline upon order confirmation.
UNS N08028 (DIN W.Nr. 1.4563) is a highly alloyed austenitic stainless steel. Its chemical composition is optimized for corrosion resistance: chromium (Cr) 26.00%-28.00%, nickel (Ni) 30.00%-34.00%, molybdenum (Mo) 3.00%-4.00%, copper (Cu) 0.60%-1.40%, with iron (Fe) as the balance. Trace elements are strictly controlled: maximum 0.03% carbon (C), 2.50% manganese (Mn), 1.00% silicon (Si), 0.03% phosphorus (P), and 0.03% sulfur (S).
The seamless pipe complies with ASTM B668 and ASTM B829 standards. It offers versatile dimensions: outer diameter (OD) from 1mm to 325mm, wall thickness from 0.2mm to 20mm, and a maximum length of 12m (special specifications available upon request). Physical properties include a density of 8.00 g/cm³ and a melting range of 1370-1400℃, ensuring compatibility with diverse industrial applications.
The alloy’s high chromium and molybdenum content provides resistance to both oxidizing and reducing acids, while copper enhances its performance in sulfuric acid environments. This makes it ideal for handling hydrochloric, sulfuric, phosphoric, and acetic acids in chemical processes.
Produced by a factory with 30 years of seamless pipe manufacturing experience, the product benefits from 18 seamless production lines and 3 perforation lines, supporting 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 classification societies.
Quality control spans the entire production cycle: raw materials are sourced from renowned mills (Tingshan, Tisco, Bao Steel, Yongxing, Walsn) and undergo MTC (PMI) checking, tensile strength testing, and surface/dimension inspection. In-production monitoring and pre-shipment tests (appearance, PMI, non-destructive testing, physical/chemical analysis) ensure reliability. Third-party inspections are welcome.
Alloy 028 is a highly alloyed austenitic stainless steel providing resistance to both oxidizing and reducing acids and salts due to its contents of chromium and molybdenum.
And the presence of copper increases its resistance to sulfuric acid.
APPLICATIONS
Equipment handling reducing chemical environments and chemical process industry involving hydrochloric, sulfuric, phosphoric and acetic acids.
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 | ||||||||||
% | Cr | Ni | Fe | Mo | C | Mn | Si | Cu | P | S |
MIN | 26.00 | 30.00 | BALANCE | 3.00 | 0.60 | |||||
MAX | 28.00 | 34.00 | 4.00 | 0.03 | 2.50 | 1.00 | 1.40 | 0.03 | 0.03 | |
Specification | Physical Properties | ||||
Seamless pipe and tube | ASTM B 668, B 829 | DENSITY | 8.00g/cm3 | MELTING RANGE | 1370-1400℃ |
Specifications Of UNS N08028/DIN W. NR. 1.4563 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 N08028’s high alloy content (Cr, Ni, Mo, Cu) delivers superior resistance to both oxidizing and reducing acids, especially sulfuric acid. Its balanced composition ensures resistance to a broader range of corrosive media compared to standard stainless steels.
Yes, we offer custom dimensions beyond the standard 1mm-325mm OD, 0.2mm-20mm wall thickness, and 12m length. Contact our team to discuss your specific requirements, and we will tailor the product to your needs.
The factory is certified to ISO9001:2015 (quality management), ISO45001:2018 (occupational health and safety), and ISO14001:2015 (environmental management). It also holds CCS factory approval and TUV-PED certification (2014/68/EU), ensuring compliance with international standards.
We maintain a large inventory of 10,000,000 units, so standard sizes can be delivered within a short lead time. For custom orders, delivery depends on production requirements, and our team will provide a detailed timeline upon order confirmation.
