321, 321H stainless steel heat exchanger

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ASTM A249 321 Stainless Steel Seamless Heat Exchanger Tubing, SS 1.4541 Heat Exchanger Tube, 321H Stainless Steel Heat Exchanger Tubing, Stainless Steel 321H Heat Exchanger Tube, Stainless Steel 321 Seamless Heat Exchanger Tubes Supplier.

AISI 321H Heat Exchanger Tubing, SS 1.4878 U Tube Heat Exchanger, SS 321 U Bend Exchanger Tubing, SS S32109 Shell and Tube Heat Exchanger, ASME SA 249 SS 321H Heat Exchanger Tubes, SS UNS S32100 Heat Exchanger Tubes Manufaturer.

Stainless Steel 321H is widely used austenitic Stainless Steel alloy in various industries. The alloy is highly stabilized against carbide form of precipitation and can be designed to work within the temperature range of 427 to 816 degree C. the grade is non-magnetic in nature and in annealed condition, it can be hardened in cold working. Titanium is added into the grade to suppress grain boundary and reduce susceptibility to intergranular corrosion. The 321/321H grade contains essential chemical components in it that helps in enhancing its traits. Composition such as iron, chromium, nickel, Manganese, silicon, phosphorous and carbon are some of the chemical elements present in the grade.

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Basic Information

The SS 321/321H grade exhibits great corrosion resistance, improved oxidation resistance, good crevice corrosion resistance, improved stress crack corrosion resistance and good strength in high temperature. Other than this, it also has good mechanical properties such as good tensile strength, improved yield strength, greater and shorter creep properties and excellent hardness in high extensive temperature and pressure.

About industry

Jay Hind Metal & Tubes is one of the leading manufacturer, exporter and supplier of top-notch quality of Stainless Steel 321 / 321H Heat Exchanger Tubes to their buyers across the world. The industry use efficient quality of raw material which is procured from trustworthy market vendors which are further quality tested by the industry professionals. Moreover, the industry offers valuable services on their products that are highly appreciated by the customers. Unique features such as high end finishing, accurate dimensions, good durability and timely delivery of the product are some of the services.
The industry use modern machinery and other inventory tools in order to enhance the productivity and efficiency of the product. Moreover, the industry keeps on upgrading the quality of heat exchangers tubes according to the latest market trend and customers demands.

Quality tests and documentations
There are several tests performed on heat exchangers tubes in order to ensure the strict quality and efficiency before finally delivering it to the customers. tests such as mechanical tests, hardness tests, PMI tests, IGC tests, bend tests, micro and macro tests and flaring tests are some of the tests are performed on Stainless Steel 321 / 321H Heat Exchanger Tubes.

Ss 321 / 321h Heat Exchanger Tubes Specification

Range : 10 mm OD to 50.8 mm OD
Outer Diameter : 9.52 mm O.D to 50.80 mm O.D
Thickness : 0.70 mm to 12.70 mm
Length : up to 12 Meters Leg Length & Customed Length
Specifications : ASTM A249 / ASTM SA249
Finish : Annealed, pickled & polished, BA

Equivalent Grade of Stainless Steel 321 / 321H Heat Exchanger Tubes

STANDARD	UNS	WERKSTOFF NR.
SS 321	S32100	1.4541
SS 321H	S32109	1.4878

Chemical Composition of SS 321 / 321H Heat Exchanger Tube

SS	321	321H
Ni	09 – 12	09 – 12
Fe	0.10	0.10
Cr	17 – 19	17 – 19
C	0.08 max	0.04 – 0.08
Si	1 max	0.75 max
Mn	2 max	2 max
P	0.040 max	0.045 max
S	0.030 max	0.03 max
Mo	4(C+N)	0.70 max

Mechanical Properties of SS 321 / 321H Heat Exchanger Tubes

Grade	321	321H
Tensile Strength (MPa) min	515	515
Yield Strength 0.2% Proof (MPa) min	205	205
Elongation (% in 50mm) min	40	40
Hardness
Rockwell B (HR B) max	95	95
Brinell (HB) max	217	217