[vc_row type=”vc_default” css=”.vc_custom_1474268037787{margin-bottom: -30px !important;padding-bottom: 30px !important;}”][vc_column offset=”vc_col-lg-12 vc_col-md-12 vc_col-xs-12″][dt_fancy_image image_id=”201″ width=”1000″ height=”500″ css=”.vc_custom_1495190137628{padding-bottom: 60px !important;}”][ultimate_heading main_heading=”DUCTILE IRON BACKUP RINGS” alignment=”left” spacer=”line_only” spacer_position=”bottom” line_height=”4″ line_color=”” main_heading_font_size=”desktop:26px;” main_heading_line_height=”desktop:36px;” line_width=”50″ spacer_margin=”margin-top:15px;margin-bottom:30px;” el_class=”accent-border-color” main_heading_style=”font-weight:bold;”][/ultimate_heading][vc_column_text css=”.vc_custom_1630481305902{padding-bottom: 60px !important;}”]Ductile Iron Backup Rings, also named as back-up flange or convert flange, it’s designed for HDPE pipe connection.
Ductile Iron have better strength than carbon steel, and better rust resistance property too.
Our ductile iron flanges has material ASTM A536 Grade 450-10,

[/vc_column_text][ultimate_heading main_heading=”Professional Experience” alignment=”left” spacer=”line_only” spacer_position=”bottom” line_height=”4″ line_color=”” main_heading_font_size=”desktop:26px;” main_heading_line_height=”desktop:36px;” line_width=”50″ spacer_margin=”margin-top:15px;margin-bottom:40px;” el_class=”accent-border-color” main_heading_style=”font-weight:bold;”][/ultimate_heading][vc_tta_accordion style=”modern” color=”green” spacing=”1″ active_section=”” no_fill=”true” collapsible_all=”true”][vc_tta_section title=”Backup Flange Material” tab_id=”1630482057395-3bb62354-69d4″][vc_column_text]Ductile Iron per standard ASTM A536
| Casting Grade | Tensile Strength, min | Yield Strength, min | Elongation in 2in or 50mm, %, min | ||
| psi, | Mpa | psi | Mpa | ||
| A536 Gr 65-45-12 | 65 000 | 448 | 45 000 | 310 | 12 |
| A536 Gr 80-55-06 | 80 000 | 552 | 55 000 | 379 | 6.0 |
[/vc_column_text][/vc_tta_section][vc_tta_section title=”Backup Flange Size” tab_id=”1630482396377-6a4c1f17-34c7″][vc_column_text]Ductile Iron backup rings from 1/2 to 36 inch[/vc_column_text][/vc_tta_section][vc_tta_section title=”Backup Flange Rate” tab_id=”1630482460396-2d7427bf-b86e”][vc_column_text]
- SDR 7
- SDR 11
[/vc_column_text][/vc_tta_section][vc_tta_section title=”Backup Flange Design Standard” tab_id=”1630482716582-0686dbbf-6994″][vc_column_text]
- ASME/ANSI B16.5 CLASS 150
- ASME/ANSI B16.47 CLASS 150
- ASME/ANSI B16.1 CLASS 125
- AWWA C207 B/D/E
[/vc_column_text][/vc_tta_section][vc_tta_section title=”Backup Flange Coating” tab_id=”1630482888686-e3272e59-d80e”][vc_column_text]
- Red Prime Paint
- Epoxy Powder Coating
- E-coating
- Galvernizaiton
- Hot Zinc Dipped
[/vc_column_text][/vc_tta_section][/vc_tta_accordion][/vc_column][/vc_row][vc_row][vc_column][ultimate_heading main_heading=”Ductile Iron Backup Rings Products” heading_tag=”h3″ spacer=”line_only” spacer_position=”bottom” line_height=”4″ line_color=”” main_heading_font_size=”desktop:26px;” main_heading_line_height=”desktop:36px;” line_width=”50″ spacer_margin=”margin-top:15px;margin-bottom:40px;” el_class=”accent-border-color” main_heading_style=”font-weight:bold;”][/ultimate_heading]
