OverviewDIN1.4449 is an austenitic chromium-nickel stainless steel that possesses excellent corrosion ...    More ...

Overview

---

DIN1.4449 is an austenitic chromium-nickel stainless steel that possesses excellent corrosion resistance. Of all the 300 series stainless steels, alloy 1.4449 is the most corrosion resistant and has the highest tensile and creep strength properties at elevated temperatures. The high molybdenum content the alloy’s superior pitting resistance.


Characteristic:

---

High corrosion resistance:1.4449 stainless steel has good corrosion resistance, especially in chloride environments. Therefore, it is widely used in Marine environment, chemical industry, medical field and food processing.
Pitting resistance:1.4449 stainless steel alloy has good pitting resistance and can resist pitting and crack corrosion in chloride and other corrosive media.
Good thermal stability:1.4449 stainless steel has good thermal stability and heat resistance in high temperature environments. 
Physical properties

---

QuantityValueUnit
Thermal expansion16 - 17e-6/K
Thermal conductivity16 - 16W/m.K
Specific heat500 - 500J/kg.K
Melting temperature1370 - 1400°C
Service temperature0 - 500°C
Density8000 - 8000kg/m3
Resistivity0.7 - 0.7Ohm.mm2/m
Specification

---

EndsPlain end
Production processThe round steel→Peeling→Heating→Perforation→Acid picking→End preparation→Grinding→Lubricating→Cold-drawn→Degreasing→Annealing→Straightening→Acid picking→Finishing→Testing/inspection→seamless pipe→marking→packing→weighs→weighs→products storage→leaves the plant

Delivery timewithin 45 -60 days.
Payment Terms40% prepayment Balance before lodaing.
Shipping TermsFOB NINGBO, after the inspection of goods at supplier's warehouse
PackageStandard export seaworthy package,or as required.

Common Industries

---

Architecture and Construction
Automotive and Transportation
Medical
Oil and Gas
Food and Drug
1.4449 stainless pipe Chemical Composition

---

GradeC (Max)Mn (Max)P (Max)S (Max)Si (Max)CrNiMoNitrogen (Max)Cu/ Others
1.44490.0820.0450.030.7518.00 - 20.0011.00 - 14.003.00 - 4.000.10


Mechanical composition

---

GradeTensileYield%AgeHardness (Max)
Strength Mpa, (Min)StrengthElongation
Mpa, (Min)in 50mm
gauge length minBHNRb
1.44495152053521795


Uses

---

offshore oil rigs
chemical storage tanks 
fuel injection systems  
aerospace components
kitchen appliances, architectural cladding panels and automobile exhaust systems 


Product Testing

---

Coating Thk Test
Geometry inspection
Ultrasonic Inspection
Nondestructive Testing
Hydrostatic Testing
Package Process

---

1.with plastic cap to protect both ends

2.weaving bag wrapped outside the pipe

3.then pack into wooden case.


Image



Less ...