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Stainless Steel · Tubes · ASTM A213 TP317L

SS 317L Stainless Steel Tubes

In short: SS 317L tube, seamless to ASTM A213 or welded to A249, is used for condensers and exchangers with chloride-bearing water, welded into tube sheets.

S31703
UNS number
8
density, g/cm³
3.1 / 3.2
EN 10204 certificates
5
SS 317L product forms
Quote SS 317L tubes →Sizes and weights
SS 317L tube weightCalculated at 8 g/cm³: 6.4×0.89 0.12 kg/m; 9.5×1.24 0.26 kg/m; 12.7×1.24 0.36 kg/m; 12.7×1.65 0.46 kg/m; 15.9×1.24 0.46 kg/m; 19.1×1.65 0.72 kg/m; 19.1×2.11 0.90 kg/m; 25.4×1.65 0.98 kg/m; 25.4×2.11 1.24 kg/m; 31.8×1.65 1.25 kg/m; 38.1×1.65 1.51 kg/m; 38.1×2.11 1.91 kg/m. SS 317L tube weight8 g/cm³ 6.4×0.89: 0.12 kg/m6.4×0.899.5×1.24: 0.26 kg/m9.5×1.2412.7×1.24: 0.36 kg/m12.7×1.2412.7×1.65: 0.46 kg/m12.7×1.6515.9×1.24: 0.46 kg/m15.9×1.2419.1×1.65: 0.72 kg/m19.1×1.6519.1×2.11: 0.90 kg/m19.1×2.1125.4×1.65: 0.98 kg/m25.4×1.6525.4×2.11: 1.24 kg/m25.4×2.1131.8×1.65: 1.25 kg/m31.8×1.6538.1×1.65: 1.51 kg/m38.1×1.6538.1×2.11: 1.91 kg/m38.1×2.11 1.9 OD × wall, mm · kg/m
Calculated values for estimating; actual weights vary within tolerances.

Why this combination

Why SS 317L in tubes

Low carbon for welded constructionPREN about 28–30Step up from SS 316L for pitting and crevice resistanceCommon in FGD and pulp and paper equipment

Low carbon protects tube-to-tubesheet welds; molybdenum protects against pitting under deposits.

Clean, flowing water extends life; stagnant conditions are where pitting starts.

Specification

How to specify SS 317L tubes

OD 3 mm to about 127 mm (¼" to 5") typical, wall 0.5 mm to 12 mm; BWG or mm; straight lengths up to about 30 m, U-bent to drawing

SS 317L tubes ASTM A213 TP317L
SS 317L tubes: ASTM A213 TP317L (seamless)
Specification
ASTM A213 TP317L (seamless); A249 / A269 TP317L (welded)
UNS
S31703
EN / W.Nr.
1.4438
Order by
OD × wall, length or U-bend

Sizes and weights

SS 317L tubes sizes, weighed at 8 g/cm³

Other sizes on request. For general tubes information, such as manufacturing routes and end finishes, see the tubes guide.

SS 317L tube weights at 8 g/cm³
OD mmWall mmkg/m
6.350.890.122
9.531.240.258
12.701.240.357
12.701.650.458
15.881.240.456
19.051.650.722
19.052.110.898
25.401.650.985
25.402.111.235
31.751.651.248
38.101.651.512
38.102.111.909
50.802.112.582
50.802.773.344

Chemistry

SS 317L composition

UNS
S31703
EN / W.Nr.
1.4438 · X2CrNiMo18-15-4
Density
8 g/cm³
PREN
28 – 30
SS 317L Stainless Steel chemical composition, % (ASTM A240)
ElementLimit, %Why it matters
C0.030 max
Mn2.00 max
P0.045 max
S0.030 max
Si0.75 max
Cr18.0 – 20.0
Ni11.0 – 15.0
Mo3.0 – 4.0
N0.10 max

Limits per ASTM A240; other product forms and specifications differ slightly. Your order's specification and edition govern.

0%5%10%15%20% Mn Cr Ni Mo
Main alloying elements of SS 317L Stainless Steel: bars show the permitted range (ASTM A240).

Questions

About SS 317L tubes

SS 317L or SS 316L tube for brackish water?

SS 317L gives more pitting margin; the choice depends on chloride level and temperature.

Do you supply U-bent SS 317L tube?

Yes, to drawing.

From enquiry to dispatch

How a SS 317L tubes order runs

  1. 01 EnquiryGrade, specification, size, quantity
  2. 02 ReviewChecked against your standard
  3. 03 InspectPMI, dimensions, TPI if required
  4. 04 CertifyEN 10204 3.1 / 3.2, heat traceable
  5. 05 ShipPacked and documented for the destination

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