Stainless steel boiler tubes are essential components used in high-temperature and high-pressure environments, particularly in boilers for power generation, chemical processing, and marine applications. At Xinzhe, a reliable supplier and stockist based in Wenzhou , China, we offer a comprehensive range of stainless steel boiler tubes, available in various types, including water tube, fire tube, and ERW tubing. Designed for strength, thermal resistance, and long-term durability, these tubes ensure safe and efficient heat transfer. Known for our adherence to international standards and our commitment to quality and affordability, we deliver performance-driven solutions trusted by industries across the globe.

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.

Size Tolerance

Tube Kinds

SA213 OD（D）

SA213 Thickness（S）

OD（mm）

OD Tolerance（mm）

OD（mm）

Thickness Tolerance（mm）

Hot Rolled

≤101.6

+0.4～-0.8

76～168.3

+28%～0

>101.6～168.3

+0.4～-1.2

Cold Drawn

<25.4

0.1

≤38.1

+20%～0

25.4～38.1

0.15

>38.1～<50.8

0.2

>38.1

+22%～0

50.8～<63.5

0.25

63.5～<76.2

0.3

76.2～101.6

0.38

>101.6～190.5

+0.38～-0.64

>190.5～228.6

+0.38～-1.14

NOTES:

　

　

　

(1) When standard round 2 in. or 50 mm gage length or smaller proportionally sized specimens with gage length equal to 4D (4

times the diameter) is used, the minimum elongation shall be 22% for all ferritic grades except 18Cr-2Mo, T23 and T91.

(2) For longitudinal strip tests, a deduction from the basic minimum

　
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