Home Chinese Français Contact

Heat Exchanger
DDI "Rectangular, Square , Cube" TM

Don't Waste the Waste: Use DDI Heat Recovery

Since 1980

1) What's New
2) Summary
3) Publications
4) Advertisment
5) Viscosity Influence
6) Technical Info
7) Advantages
8) Comparisons
9) Price Comparison
10) Photos
11) Representatives
12) Energy Savings
13) Feasibility Form
14) Other Products
15) Behind the Product
16) Slide Show
17) Cogeneration
18) Compare to Spiral
19) Vs. "Tube & Shell"
20) Indirect Heating
21) References
22) Quote Request
Downloads

  1. DDI Pre-Heating of RAW Sludge
  2. DDI Heating of Digester Sludge
  3. DDI Heat-Recovery from digested sludge
  4. DDI Cooling of Digested Sludge
  5. DDI Heat Exchanger Guide
  6. SS316 compared to Carbon Steel

General Information
Spec #1
Spec #2
Spec #3
Computerized Data Acquisition
Spec #4

horizontal rule

Mr. Schwartz:
ASME SA-516 Gr 70
Cheneistry:


Mechanical Properties:
Tensile Strength = 70/90 Ksi
Yield Strength = 38 Ksi
Elongation in 8" = 17%
Elongation in 2" = 21%
Typical Rockwell hardness prior to any hardening = 85 HRB (163 Brinell), could reach 45HRC (430 Brinell)

recommendations:
ASME SA-516 Gr 70 Vs. 316L St. Steel
516-70 have higher yield strength than 316L (38Ksi to 34Ksi)
516-70 have lower elongation percentage (Higher Toughness) than 316L (21% to 55%)
516-70 will always yield to a higher hardness and toughness due to Cr, Mo, and V carbides when annealed.


Kameel Al-Ejel
Rockwell Automation
Chief Engineer/Plant Metallurgist
Rogersville, Tennessee
(423) 272-1282 Phone
(423) 272-1313 Fax

Counter Provided by www.digits.com
Copyright © 2004 DDI-Heat Exchangers Inc.
Last modified: 10/06/06