SA-213/SA-213M Specification for seamless Ferritic Alloy steel boiler, Superheater and heat exchanger tubes
Delivery Condition: Normalized and Tempered
Inspections and Tests Performed: Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test, No-destructive Test, Hydrostatic Test.
Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Inner packing: Caps on two ends of every pipe
Package: bare packing/bundle packing/wooden carton packing.
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Size Tolerance |
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Tube Kinds |
SA213 OD（D） |
SA213 Thickness（S） |
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OD（mm） |
OD Tolerance（mm） |
OD（mm） |
Thickness Tolerance（mm） |
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Hot Rolled |
≤101.6 |
+0.4～-0.8 |
76～168.3 |
+28%～0 |
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>101.6～168.3 |
+0.4～-1.2 |
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Cold Drawn |
<25.4 |
0.1 |
≤38.1 |
+20%～0 |
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25.4～38.1 |
0.15 |
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>38.1～<50.8 |
0.2 |
>38.1 |
+22%～0 |
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50.8～<63.5 |
0.25 |
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63.5～<76.2 |
0.3 |
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76.2～101.6 |
0.38 |
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>101.6～190.5 |
+0.38～-0.64 |
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>190.5～228.6 |
+0.38～-1.14 |
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NOTES: |
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(1) When standard round 2 in. or 50 mm gage length or smaller proportionally sized specimens with gage length equal to 4D (4 |
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times the diameter) is used, the minimum elongation shall be 22% for all ferritic grades except 18Cr-2Mo, T23 and T91. |
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(2) For longitudinal strip tests, a deduction from the basic minimum |
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