ASTM A790/A790M

Product List

Contact Us

Tel:+86-21-54725826

Fax:+86-21-54717930

Email: sales(at)huaxiaometal.com

huaxiaometal(at)gmail.com

Wechat/WhatsApp/Mobile: +86-13761906384

Web: www.huaxiaometal.com

ASTM A790/790M Pipes

Standard: ASTM A790/790M

Material/Steel Grade: S31803, S32205, S32750

Application: Seamless Duplex Stainless Steel Tubing for General Service

Size: OD: 3/4″~10″ WT: SCH5S~SCH80S

Finish: Mill

Duplex Stainless Steel Pipe Specification

Standard
Item
ASTM A789 ASTM A790 EN 10216-5

 

 

Grade

S31803 S32205 S32750 S31803 S32205 S32750 1.4301 1.4307 1.4948  1.4315
1.4401 1.4404 1.4571  1.4541
1.4941 1.4845 1.4449  1.4438
1.4550 1.4912 1.4462  1.4410
Yield Strength
(Mpa)
≥450;≥485;≥550 ≥450;≥450;≥550
Tensile Strength
(Mpa)
≥620;≥655;≥800 ≥620;≥655;≥800
Elongation(%) ≥25;≥25;≥15 ≥25;≥25;≥15

 

 

Hydrostatic Test

The Hydrostatic Test shall be in accordance with ASTM A1016.

 

Could be replaced by ECT.
The Hydrostatic Test shall be in accordance with ASTM A999.

 

Could be replaced by ECT.
The hydrostatic test shall be carried out at a test pressure of 7MPa or
at a test pressure calculated using the following formula
P=2St/D S=70%Rp0.2
Intergranular Corrosion Test Usually, use Pitting Corrosion Test. Usually, use Pitting Corrosion Test. EN ISO 3651-2 (Optional)
Eddy Current Test Could be replaced by HT. Could be replaced by HT. EN 10246-3

 

 

O.D. Tolerance
(mm)

O.D. O.D.Tolerance O.D. O.D.Tolerance O.D. Tolerance Class
D<12.7 +/-0.13 10.3≤D≤48.3 +0.40/-0.80 D3 +/-0.75% or
+/-0.3mm
12.7≤D<38.1 +/-0.13 48.3<D≤114.3 +0.80/-0.80
whichever is the greater
38.1≤D<88.9 +/-0.25 114.3<D≤219.1 +1.60/-0.80 D4 +/-0.5% or
+/-0.1mm
88.9≤D<139.7 +/-0.38 219.1<D≤457.0 +2.40/-0.80
whichever is the greater

 

 

W.T. Tolerance
(mm)

O.D. W.T.Tolerance O.D. W.T.Tolerance W.T. Tolerance Class
D<12.7 +/-15% 10.3≤D≤73.0 +20.0%/-12.5% T3 +/-10% or
+/-0.2mm
12.7≤D<38.1 +/-10%
88.9≤D≤457.0
t/D ≤5%
+22.5%/-12.5% whichever is the greater
38.1≤D<88.9 +/-10% T4 +/-7.5% or
+/-0.15mm
88.9≤D≤457.0
t/D >5%
+15.0%/-12.5%
88.9≤D<139.7 +/-10%
whichever is the greater
Ss Mill, Stainless Plant, Stainless Mill

Welcome