321 / UNS S32100 Grade Stainless Steel Rod , Dia 6-550 Mm Stainless Round Bar

Stainless Steel Grade 321 (UNS S32100), stainless steel bar,dia6-550mm

Applications

Typical applications include:
• Aircraft exhaust manifolds
• Expansion joints
• Bellows
• Furnace parts
• Heating element tubing
• Heat Exchangers
• Woven or welded screens for high temperature mineral processing
• Spiral Welded tube for burner pipes and flues


COMPLETE FACILITIES for Slitting - Shearing - Blanking and Edging. Available in coils or cut lengths. Sizes other than those listed and in all thicknesses .001 and heavier are obtainable and may be ordered for you.

AlSl 321
ASTM A 240
Rockwell B92 Max.
Analysis
C .08 Max.
Mn 2.00 Max.
Cr 17.00 /19.00
Ni 9.00/12.00
Ti .70 Max.
P .040 Max.
S .030 Max.
Si .75 Max.

Mechanical Properties

Typical mechanical properties for grade 321 stainless steels are given in table 1.

Table 1. Mechanical properties of 321 grade stainless steel

Heat Treatment

Solution Treatment (Annealing) - heat to 950-1120°C and cool rapidly for maximum corrosion resistance.
Stabilising - heat to 870-900°C for 1 hour per 25mm of thickness and air cool. Stabilisation is recommended for most severe service conditions (above 425°C) and particularly for material annealed at the upper side of the annealing temperature range.
Stress Relief - Heat to 700°C for 1 to 2 hours and air cool.
These grades cannot be hardened by thermal treatment.

Welding

Excellent weldability by all standard fusion methods, both with and without filler metals. AS 1554.6 pre-qualifies welding of 321 and 347 with Grade 347 rods or electrodes; high silicon version of 347 is also pre-qualified for welding of 321.

We, Shanghai Unite Steel are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.

In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china, such as: DAYE Special Steel-a famous steel enterprise with the longest steelmaking history; BAO Steel, and Dongbei Special Steel Group-the biggest special steel manufacturer; TPCO, VALIN-largest seamless steel tube production enterprise; What's more, we have built long, deep and close business relationship with dozens of steel companies, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!