Weight Factors And Composition

Printable Version of Charts

316/316L Stainless Steel Tubing Weight Per Foot
Diameter Wall Thickness
Fract. Dec. 0.010 0.012 0.020 0.028 0.035 0.049 0.065 0.083
1/8 0.1250 0.0126 0.0148 0.0230 0.0297 0.0344 0.0407 0.0426 0.0381
5/32 0.1563 0.0160 0.0189 0.0298 0.0393 0.0464 0.0575 0.0648 0.0665
3/16 0.1875 0.0194 0.0230 0.0366 0.0488 0.0584 0.0742 0.0871 0.0948
1/4 0.2500 0.0262 0.0312 0.0503 0.0680 0.0823 0.1077 0.1315 0.1515
5/16 0.3125 0.0331 0.0394 0.0640 0.0871 0.1062 0.1412 0.1759 0.2083
3/8 0.3750 0.0399 0.0476 0.0776 0.1062 0.1301 0.1746 0.2203 0.2650
7/16 0.4375 0.0467 0.0558 0.0913 0.1254 0.1540 0.2081 0.2647 0.3217
1/2 0.5000 0.0536 0.0640 0.1050 0.1445 0.1779 0.2416 0.3091 0.3784
9/16 0.5625 0.0604 0.0722 0.1186 0.1636 0.2019 0.2751 0.3535 0.4351
5/8 0.6250 0.0672 0.0804 0.1323 0.1828 0.2258 0.3086 0.3980 0.4918
3/4 0.7500 0.0809 0.0968 0.1596 0.2210 0.2736 0.3755 0.4868 0.6053
Weight/Ft = 0.290 lb/In³ * 12 In/Ft * π * Wall Thickness * (Diameter –Wall Thickness)
Weight/Ft = 10.933 * Wall Thickness * (Diameter – Wall Thickness)

 

Conversion Factors to Determine Tubing Weight per Foot for Other Alloys
Alloy Conversion Factor
Alloy 625 1.052
Alloy 825 1.010
304 0.990
2205 0.983

 

Composition Limits (%) of Stainless Steels and Nickel-Base Alloys
Based on ASTM A240, B424, and B443 Alloy UNS No. ASTMSpecifications
    Alloy 625 Alloy 825 2205 316L 304L
    N06625 N08825 S32205 S31603 S30403
Element Symbol B 443 B 424 A 240 A 240 A 240
Carbon C 0.10 max 0.05 max 0.030 max 0.030 max 0.030 max
Chromium Cr 20.0–23.0 19.5–23.5 22.0–23.0 16.0–18.0 18.0–20.0
Manganese Mn 0.50 max 1.0 max 2.00 max 2.00 max 2.00 max
Molybdenum Mo 8.0–10.0 2.5–3.5 3.0–3.5 2.0–3.0 —
Nitrogen N — — 0.14–0.20 0.10 max 0.10 max
Nickel Ni 58.0 min 38.0–46.0 4.5– 6.5 10.0–14.0 8.0–12.0
Phosphorous P 0.015 max — 0.030 max 0.045 max 0.045 max
Sulfur S 0.015 max 0.03 max 0.020 max 0.030 max 0.030 max
Silicon Si 0.50 max 0.5 max 1.00 max 0.75 max 0.75 max
Copper Cu — 1.5–3.0 — — —
Other   Co 1.0 max
Al 0.40 max
Cb+Ta 3.15–4.15
Fe 5.0 max
Ti 0.040 max		 Al 0.2 max
Fe 22.0 min
Ti 0.6–1.2