Steel Pipe
Here are Todays Amazing Steel Pipe Deals
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 Steel Beams Construction Materials Pipe $1.00 (2 Bids) Time Remaining: 19h 3m Bid now | Add to watch list |
 2 rolls 1 2 x 300ft PEX Tubing for Potable Water Combo $138.00 Time Remaining: 15d 17h 25m Buy It Now for only: $138.00 Buy It Now | Add to watch list |
 PIPE NIPPLE STD 304 STAINLESS STEEL 1 2 X 4 SN225 $2.84 Time Remaining: 23d 14h 33m Buy It Now for only: $2.84 Buy It Now | Add to watch list |
 1 1 2 galvanized steel tee $0.99 Time Remaining: 19h 23m Buy It Now for only: $3.00 Buy It Now | Bid now | Add to watch list |
 100 1 2 PEX Copper Crimp Rings $13.45 Time Remaining: 12d 13h 2m Buy It Now for only: $13.45 Buy It Now | Add to watch list |
 1 1 4 galvanized steel tee with reducer to 3 4 $0.99 Time Remaining: 19h 27m Buy It Now for only: $3.00 Buy It Now | Bid now | Add to watch list |
 10 1 2 PEX x 1 2 FPT Drop Ear Elbows Crimp Fittings $27.00 Time Remaining: 9d 17h 40m Buy It Now for only: $27.00 Buy It Now | Add to watch list |
 NEW Watts WP9S Stainless Steel Cinch Clamp for 1 inch PEX Pipe 100 Count $1.00 Time Remaining: 2d 2h 4m Bid now | Add to watch list |
 PIPE NIPPLE STD 304 STAINLESS STEEL 1 X 4 SN243 $4.34 Time Remaining: 12d 16h 57m Buy It Now for only: $4.34 Buy It Now | Add to watch list |
 6 x 2 Steel Saddle NEW $36.25 Time Remaining: 2d 13h 36m Buy It Now for only: $41.00 Buy It Now | Bid now | Add to watch list |
 Therm X Trol Amtrol ST 5 Water Heater Expansion Tank $44.45 Time Remaining: 14d 10h 54m Buy It Now for only: $44.45 Buy It Now | Add to watch list |
 55 gallon drum loaded with unused plumbers fittings $1,500.00 Time Remaining: 2d 18h 8m Bid now | Add to watch list |
 100 1 2 to 3 4 TWIN Talons for PEX Tube Copper Pipe 555 23 Sioux Chief $9.95 Time Remaining: 28d 18h 57m Buy It Now for only: $9.95 Buy It Now | Add to watch list |
 Repackaged 5 Loop Port BRASS Deluxe PEX Manifold Radiant Heating $160.00 Time Remaining: 2d 19h 32m Buy It Now for only: $180.00 Buy It Now | Bid now | Add to watch list |
 100 Stud Guard Steel Plates Sioux Chief 18 Gauge $9.85 Time Remaining: 16d 11h 13m Buy It Now for only: $9.85 Buy It Now | Add to watch list |
 Repackaged 8 Loop Port BRASS Deluxe PEX Manifold Radiant Heating $210.00 (1 Bid) Time Remaining: 2d 19h 34m Bid now | Add to watch list |
 2 rolls 1 2 x 100ft PEX Tubing for Potable Water Combo $60.00 Time Remaining: 24d 12h 45m Buy It Now for only: $60.00 Buy It Now | Add to watch list |
 Repackaged 4 Loop Port BRASS Deluxe PEX Manifold Radiant Heating $145.00 Time Remaining: 2d 19h 35m Buy It Now for only: $170.00 Buy It Now | Bid now | Add to watch list |
 10 1 2 PEX x 3 8 OD Compr Straight Stop Valves $29.95 Time Remaining: 12d 13h Buy It Now for only: $29.95 Buy It Now | Add to watch list |
 Repackaged 2 Loop Port BRASS Deluxe PEX Manifold Radiant Heating $110.00 Time Remaining: 2d 20h 29m Buy It Now for only: $130.00 Buy It Now | Bid now | Add to watch list |
 Amtrol WX 202 144S29 Well X Trol Standing Well Water Tank 20 Gal $185.95 Time Remaining: 18d 18h 35m Buy It Now for only: $185.95 Buy It Now | Add to watch list |
 Repackaged 7 Loop Port BRASS Deluxe PEX Manifold Radiant Heating $175.00 Time Remaining: 2d 20h 31m Buy It Now for only: $200.00 Buy It Now | Bid now | Add to watch list |
 25 1 2 PEX x 1 2 PEX Elbows Brass PEX Fitting $12.95 Time Remaining: 8d 13h 18m Buy It Now for only: $12.95 Buy It Now | Add to watch list |
 Plumbing 1 black steel gas pipe fittingmixed box new old 54 pcs $28.99 Time Remaining: 3d 20h 42m Bid now | Add to watch list |
 Extrol Amtrol 15 Boiler Expansion Tank Extrol 15 $24.90 Time Remaining: 21d 15h 48m Buy It Now for only: $24.90 Buy It Now | Add to watch list |
 1 2 X 2 STAINLESS STEEL PIPE FITTINGS TYPE SH 40 BRAND NEW QTY 5 $5.99 (1 Bid) Time Remaining: 3d 21h 43m Bid now | Add to watch list |
 1 2 x 500ft PEX Tubing O2 Oxygen Barrier Radiant Heat $141.00 Time Remaining: 25d 17h 47m Buy It Now for only: $141.00 Buy It Now | Add to watch list |
 NEW1 1 2 IPS X 1 CTS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $20.32 Time Remaining: 5d 15h 51m Buy It Now for only: $27.94 Buy It Now | Bid now | Add to watch list |
 1 2 x 300ft PEX Tubing O2 Oxygen Barrier Radiant Heat $85.95 Time Remaining: 18d 12h 29m Buy It Now for only: $85.95 Buy It Now | Add to watch list |
 NEW 2 IPS X 3 4 CTS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $16.79 Time Remaining: 5d 15h 52m Buy It Now for only: $23.09 Buy It Now | Bid now | Add to watch list |
 1 HP Shallow Well Jet Pump w Pressure Switch Dual Voltage $179.95 Time Remaining: 22d 14h 57m Buy It Now for only: $179.95 Buy It Now | Add to watch list |
 NEW 2 IPS X 1 CTS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $18.57 Time Remaining: 5d 15h 56m Buy It Now for only: $25.53 Buy It Now | Bid now | Add to watch list |
 2 rolls 3 4 x 300ft PEX Tubing for Potable Water Combo $229.95 Time Remaining: 13h 8m Buy It Now for only: $229.95 Buy It Now | Add to watch list |
 NEW 2 IPS X 3 4 CTS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $15.24 Time Remaining: 5d 15h 57m Buy It Now for only: $20.96 Buy It Now | Bid now | Add to watch list |
 1 1 2 Silent Sump Pump Full Flow Check Valve 2069 $21.99 Time Remaining: 26d 15h 30m Buy It Now for only: $21.99 Buy It Now | Add to watch list |
 NEW 2 IPS X 3 4 IPS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $15.48 Time Remaining: 5d 15h 59m Buy It Now for only: $21.29 Buy It Now | Bid now | Add to watch list |
 PIPE NIPPLE STD 304 STAINLESS STEEL 1 2 X 11 2 SN221 $1.54 Time Remaining: 8d 16h 51m Buy It Now for only: $1.54 Buy It Now | Add to watch list |
 NEW 3 IPS X 3 4 CTS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $20.11 Time Remaining: 5d 16h Buy It Now for only: $27.65 Buy It Now | Bid now | Add to watch list |
 3 4 NPT Sioux Chief Ox Box Gas Outlet Box $25.95 Time Remaining: 12d 13h 14m Buy It Now for only: $25.95 Buy It Now | Add to watch list |
 NEW 3 IPS X 1 CTS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $28.00 Time Remaining: 5d 16h 1m Buy It Now for only: $38.50 Buy It Now | Bid now | Add to watch list |
 PIPE NIPPLE 1 1 2 X 2 STD 304L STAINLESS STEEL SN261 $3.49 Time Remaining: 23d 14h 51m Buy It Now for only: $3.49 Buy It Now | Add to watch list |
 NEW 3 IPS X 3 4 IPS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $20.91 Time Remaining: 5d 16h 2m Buy It Now for only: $28.75 Buy It Now | Bid now | Add to watch list |
 100 3 4 PEX Copper Crimp Rings $16.95 Time Remaining: 12d 11h 54m Buy It Now for only: $16.95 Buy It Now | Add to watch list |
 NEW 3 IPS X 1 IPS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $30.52 Time Remaining: 5d 16h 3m Buy It Now for only: $41.97 Buy It Now | Bid now | Add to watch list |
 1 x 3 4 Reducing Copper Coupling $1.76 Time Remaining: 19d 12h 48m Buy It Now for only: $1.76 Buy It Now | Add to watch list |
 NEW 4 IPS X 3 4 CTS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $21.07 Time Remaining: 5d 16h 4m Buy It Now for only: $28.97 Buy It Now | Bid now | Add to watch list |
 3 4 HP Convertible Shallow or Deep Well Jet Pump w Pressure SwitchDual Voltage $144.95 Time Remaining: 22d 17h 17m Buy It Now for only: $144.95 Buy It Now | Add to watch list |
 NEW 4 IPS X 1 CTS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $35.98 Time Remaining: 5d 16h 5m Buy It Now for only: $49.47 Buy It Now | Bid now | Add to watch list |
 Teflon Plumbing Thread Seal Tape 1 2x260 PTFE Roll $0.99 Time Remaining: 2d 15h 32m Buy It Now for only: $0.99 Buy It Now | Add to watch list |
 NEW 4 IPS X 3 4 IPS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $24.05 Time Remaining: 5d 16h 6m Buy It Now for only: $33.07 Buy It Now | Bid now | Add to watch list |
 PIPE NIPPLE STD 304 STAINLESS STL 1 1 2 X CLOSE SN260 $3.18 Time Remaining: 3d 16h 35m Buy It Now for only: $3.18 Buy It Now | Add to watch list |
 Little Giant 2E 38N Submersible or In Line Pump 502203 $80.95 Time Remaining: 21d 13h 57m Buy It Now for only: $80.95 Buy It Now | Add to watch list |
 NEW 4 IPS X 1 IPS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $24.54 Time Remaining: 5d 16h 7m Buy It Now for only: $33.75 Buy It Now | Bid now | Add to watch list |
 25 3 4 PEX Tees Brass Crimp Fittings $26.95 Time Remaining: 9d 17h 29m Buy It Now for only: $26.95 Buy It Now | Add to watch list |
 NEW 6 IPS X 1 CTS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $23.91 Time Remaining: 5d 16h 8m Buy It Now for only: $32.88 Buy It Now | Bid now | Add to watch list |
 1 x 300ft PEX Tubing for Potable Water FREE SHIP $155.00 Time Remaining: 21d 13h 55m Buy It Now for only: $155.00 Buy It Now | Add to watch list |
 NEW 6 IPS X 3 4 IPS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $23.91 Time Remaining: 5d 16h 9m Buy It Now for only: $32.88 Buy It Now | Bid now | Add to watch list |
 100 1 2 PEX Stainless Steel Clamps SSC $21.95 Time Remaining: 3d 15h 13m Buy It Now for only: $21.95 Buy It Now | Add to watch list |
 NEW 6 IPS X 1 IPS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $28.48 Time Remaining: 5d 16h 10m Buy It Now for only: $39.16 Buy It Now | Bid now | Add to watch list |
 10 5 8 OD Compr x 3 8 OD Compr Angle Stop Valves $35.95 Time Remaining: 7d 19h 2m Buy It Now for only: $35.95 Buy It Now | Add to watch list |
 NEW 8 IPS X 3 4 IPS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $35.98 Time Remaining: 5d 16h 12m Buy It Now for only: $49.48 Buy It Now | Bid now | Add to watch list |
 LOCKNUT 1 2 NPT 304 STAINLESS STEEL LOCK NUT O Ring Groove Pipe fitting $2.49 Time Remaining: 23d 7h 9m Buy It Now for only: $2.49 Buy It Now | Add to watch list |
 NEW 8 IPS X 1 IPS FAST TAP SELF TAPPING SERVICE SADDLE NO RESERVE $38.80 Time Remaining: 5d 16h 13m Buy It Now for only: $53.35 Buy It Now | Bid now | Add to watch list |
 Stainless steel 1 2 Male thread Pipe fitting x 15mm barb Hose Tail Connector $3.49 Time Remaining: 2d 12h 57m Buy It Now for only: $3.49 Buy It Now | Add to watch list |
 LARGE Lot of 60+ Mostly BRASS Fittings 3 1 2 pounds New Used Assorted $12.95 Time Remaining: 5d 20h 29m Bid now | Add to watch list |
 OX BOX Washing Machine Outlet Box 1 2 PEX connection $21.95 Time Remaining: 16d 11h 24m Buy It Now for only: $21.95 Buy It Now | Add to watch list |
 Sammys Threaded Rod Anchoring System 25 For 3 8 Rod $15.00 (1 Bid) Time Remaining: 1d 11h 57m Bid now | Add to watch list |
 100 1 2 Tube Talons for 1 2 PEX Tubing Copper pipe $4.95 Time Remaining: 16d 17h 1m Buy It Now for only: $4.95 Buy It Now | Add to watch list |
 GREENHOUSE FITTING KIT 10 X 12 DIY SURVIVAL GARDENING PLANTS FOOD STORAGE CELLAR $175.00 Time Remaining: 1d 18h 58m Bid now | Add to watch list |
 1 1 1 2 Threaded Brass Ball Valve Full Port $17.65 Time Remaining: 14d 18h 1m Buy It Now for only: $17.65 Buy It Now | Add to watch list |
 1 gasflex tubing gas flex pipe roll of 165ft50m $159.00 (1 Bid) Time Remaining: 1d 20h 53m Bid now | Add to watch list |
 20 plate Heat Exchanger 3 x 8 3 4 MNPT 316L $84.95 Time Remaining: 12h 30m Buy It Now for only: $84.95 Buy It Now | Add to watch list |
 1 BRASS BALL VALVE $9.99 Time Remaining: 1d 23h 4m Buy It Now for only: $14.99 Buy It Now | Bid now | Add to watch list |
 1 2 HP Convertible Shallow or Deep Well Jet Pump w Pressure SwitchDual Voltage $124.95 Time Remaining: 22d 17h 16m Buy It Now for only: $124.95 Buy It Now | Add to watch list |
 32ft Gooseneck EXP2 Spray Foam Polyurea rig $78,259.00 Time Remaining: 2d 11h 10m Bid now | Add to watch list |
 1 2 NPT Sioux Chief Ox Box Gas Outlet Box $23.95 Time Remaining: 23d 10h 35m Buy It Now for only: $23.95 Buy It Now | Add to watch list |
 32ft Gooseneck Spray Foam Polyurea rig $89,568.00 Time Remaining: 2d 11h 10m Bid now | Add to watch list |
 3 4 x 100 Red Oxygen Barrier Radiant Heat Pex Tubing Piping System NSF ASTM $67.99 Time Remaining: 1d 18h 53m Buy It Now for only: $67.99 Buy It Now | Add to watch list |
 Heatfab 6 venting pipe lot 50 pieces $750.00 Time Remaining: 3d 15h 40m Bid now | Add to watch list |
 Stainless steel 3 8 Male thread Pipe fitting x 10mm barb Hose Tail Connector $2.99 Time Remaining: 2d 12h 57m Buy It Now for only: $2.99 Buy It Now | Add to watch list |
 LOT OF 4 STAINLESS STEEL HEAVY DUTY 12 3 4 CUSTOM ANCHORS THREADED SIGN MOUNTS $100.00 Time Remaining: 4d 45m Bid now | Add to watch list |
 1 HP Convertible Shallow or Deep Well Jet Pump w Pressure Switch Dual Voltage $184.95 Time Remaining: 22d 14h 57m Buy It Now for only: $184.95 Buy It Now | Add to watch list |
 6 Master Flow 4 Ceiling Collar Galvanized Roof Ceiling Wall Floor Pipe CC4 NIB $14.96 Time Remaining: 4d 20h 24m Buy It Now for only: $16.46 Buy It Now | Bid now | Add to watch list |
 1 2 x 1000ft PEX Tubing O2 Oxygen Barrier Radiant Heat $269.00 Time Remaining: 1d 15h 13m Buy It Now for only: $269.00 Buy It Now | Add to watch list |
 Qty 10 Split Ring Escutcheon Flange Hole Covers 4 Pipe Rail Tubing or Conduit $4.99 Time Remaining: 4d 22h 34m Buy It Now for only: $5.49 Buy It Now | Bid now | Add to watch list |
 1 8 Frost Free Sillcock Valve 1 2 PEX inlet $14.00 Time Remaining: 12d 15h 53m Buy It Now for only: $14.00 Buy It Now | Add to watch list |
 32ft Gooseneck Spray Foam Polyurea rig with coating sprayer $102,368.00 Time Remaining: 5d 17h 35m Bid now | Add to watch list |
 SAMMYS 1 3 4 FOR 3 8 ROD PIPE HANGERAA3629 25 $40.00 Time Remaining: 29d 19h 1m Buy It Now for only: $40.00 Buy It Now | Add to watch list |
 15 Wood Frame Screws for Metal Roofing Sheet Metal Steel Siding $15.00 Time Remaining: 6d 11h 14m Buy It Now for only: $16.50 Buy It Now | Bid now | Add to watch list |
 20 plate Heat Exchanger 4 1 4 x 12 1 MNPT 316L $148.95 Time Remaining: 2d 9h 10m Buy It Now for only: $148.95 Buy It Now | Add to watch list |
 125 Steel Frame Screws for Metal Roofing Sheet Metal Steel Siding $31.50 Time Remaining: 6d 11h 14m Buy It Now for only: $35.00 Buy It Now | Bid now | Add to watch list |
 TACO 3 4 Circulator Pump Freedom Flanges PAIR 110 251F $11.95 Time Remaining: 6d 10h 13m Buy It Now for only: $11.95 Buy It Now | Add to watch list |
 7 8 Lap Stitch Screw for Metal Roofing Steel Siding Sheet Metal $33.75 Time Remaining: 6d 11h 14m Buy It Now for only: $37.25 Buy It Now | Bid now | Add to watch list |
 Stainless Steel 1 2 Male Thread Pipe Fitting x 1 2 OD Barb Hose Tail Connector $1.99 Time Remaining: 29d 20h 58m Buy It Now for only: $1.99 Buy It Now | Add to watch list |
 Measuring wall markers from stainless steel 100 pieces $1,160.00 Time Remaining: 1d 4h 5m Bid now | Add to watch list |
 2 X 36 Stainless Steel Well Point NIB $79.99 Time Remaining: 20d 12h 41m Buy It Now for only: $79.99 Buy It Now | Add to watch list |
 1 NEW STEEL HEAVY DUTY FURNACE FLUE COVER $0.99 Time Remaining: 3d 11h 34m Bid now | Add to watch list |
 12 Frost Free Anti Siphon Sillcock 1 2 PEX inlet $18.95 Time Remaining: 16d 13h 24m Buy It Now for only: $18.95 Buy It Now | Add to watch list |
 NEW 5 pc Pipe Assembly for A C Heating NSN 4520 00 277 8342 $16.99 Time Remaining: 5d 16h 31m Bid now | Add to watch list |
 1 2 x 100ft PEX Tubing for Potable Water FREE SHIPPING $32.50 Time Remaining: 24d 12h 15m Buy It Now for only: $32.50 Buy It Now | Add to watch list |
More Great Information on Steel Pipe:
What is the Difference Between 304 and 316 stainless steel pipe by Saphia
The main difference between 304 and 316 stainless steel pipe is that 316 contains 2%-3% molybdenum and 304 has no molybdenum. The "moly" is added to improve the corrosion resistance to chlorides (like sea water). So, while 316 stainless steel pipe is generally considered more corrosion resistant than 304, depending on the nature of the corrosive media the corrosion rates of 304 and 316 could be similar.
Generally, SS 304/304L is assumed to be corrosion-resistant material. But when we come to Piping Specs with SS 304/304L MOC, its value is taken as 0.063 inches -- same for SS316/316L . Please explain.
We have a plant that produces fertilizer. In one section we mix 40% phosphoric acid and 98% sulfuric acid together in a ratio of 75-80 : 25-20 phosphoric acid:sulfuric acid. After that the mixture is cooled to a temperature of 80 degrees C. What is the best material of construction for transfer piping? The existing material, 304 stainless steel pipe, shows problems at the welds.
From a materials of construction perspective, this is a tricky mixture to deal with, especially at 80 degrees C and higher. Phosphoric acid is less corrosive than sulfuric acid. Pure phosphoric acid has no oxidizing power but commercial phosphoric acid contains impurities such as fluorides and chlorides that can significantly increase its corrosivity. The corrosivity of sulfuric acid depends on many factors including temperature, concentration, the presence of oxidizing or reducing impurities, velocity effects, and solids in suspension.
It is usually not wise to select materials of construction for sulfuric acid handling equipment based only on published corrosion data since corrosion by sulfuric acid is a complex phenomenon. Small differences in impurities, velocity, or concentration can significantly impact the corrosion rate. Halides generally increase corrosion while aeration or the presence of oxidizing agents usually increases the corrosion rate of non-ferrous materials and reduces the corrosion rates of stainless steel pipe alloys. I strongly recommend laboratory corrosion studies be run on your specific stream as a part of your material of construction selection process.
I have a large storage tank of 93% sulfuric acid. I am having excessive corrosion of the top of the 4-inch Carbon Steel outlet pipe. I am thinking of replacing the outlet pipe with Schedule 120 carbon steel pipe. Is there any more resistant material, insert, or coating you could recommend for increased life?
Carbon steels are only acceptable for 93% sulfuric acid when fluid velocity is low (
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