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Alloy 020 has excellent resistance in chemicals containing sulfuric acid, and has good resistance to environments containing chlorides, phosphoric acid and nitric acid. It contains niobium for stabilization against sensitization and resultant intergranular corrosion. It also has good mechanical properties and fabricability
APPLICATIONS
Chemical, food, pharmaceutical and plastics industries, heat exchangers, mixing tanks, pickling equipment, synthetic rubber manufacturing equipment, pumps,valves and piping.
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 | |||||||||||
% | Fe | Ni | Cr | Cu | Mo | Mn | Si | C | Nb+Ta | P | S |
MIN | BALANCE | 32.00 | 19.00 | 3.00 | 2.00 | 8*C | |||||
MAX | 38.00 | 21.00 | 4.00 | 3.00 | 2.00 | 1.00 | 0.07 | 1.00 | 0.05 | 0.04 | |
Specification | Physical Properties | ||||
Seamless pipe and tube | ASTM B 729, B 829 | DENSITY | 8.08g/cm3 | MELTING RANGE | 1357-1430℃ |
Specifications Of UNS N08020 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
Alloy 020 has excellent resistance in chemicals containing sulfuric acid, and has good resistance to environments containing chlorides, phosphoric acid and nitric acid. It contains niobium for stabilization against sensitization and resultant intergranular corrosion. It also has good mechanical properties and fabricability
APPLICATIONS
Chemical, food, pharmaceutical and plastics industries, heat exchangers, mixing tanks, pickling equipment, synthetic rubber manufacturing equipment, pumps,valves and piping.
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 | |||||||||||
% | Fe | Ni | Cr | Cu | Mo | Mn | Si | C | Nb+Ta | P | S |
MIN | BALANCE | 32.00 | 19.00 | 3.00 | 2.00 | 8*C | |||||
MAX | 38.00 | 21.00 | 4.00 | 3.00 | 2.00 | 1.00 | 0.07 | 1.00 | 0.05 | 0.04 | |
Specification | Physical Properties | ||||
Seamless pipe and tube | ASTM B 729, B 829 | DENSITY | 8.08g/cm3 | MELTING RANGE | 1357-1430℃ |
Specifications Of UNS N08020 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
