Round ASME SA-209 T1 T1a T1b Boiler And Superheater Alloy Steel Tubes

 

Material : T1 T1a T1b

Standard: ASTM A209

Size: OD 6-420mm

WT1-50mm

Packaging: In bundles or in wooden boxes

Length: 1-22m

Usage: For boiler heat exchangers.ISO Certificated Round ASTM A209 T1 T1a T1b Boiler Alloy Steel Tubes

Chemical Composition:

Element	T1	T1a	T1b
Carbon	0.10-0.20	0.15-0.25	0.14max
Manganese	0.30-0.80	0.30-0.80	0.30-0.80
Phosphorus	0.025	0.025	0.025
Sulfur max	0.025	0.025	0.025
Silicon	0.10-0.50	0.10-0.50	0.10-0.50
Molybdenum	0.44-0.65	0.44-0.65	0.44-0.65

Element	T1	T1a	T1b
Tensile strength min Mpa	380	365	415
Yield strength min Mpa	205	195	220
Elongation min %	30	30	30

Applications: for high temperature service

Tolerance:

According to the following tables or customers` request.

Characteristic:

High Creep Rupture Strength

High antioxidant properties

Good organizational stability

Good concentricity

Good OD and ID tolerance

High Precision

Stable quality

Smooth Roughness

TORICH QUALITY ASSURANCE

Processing:

RAW MATERIAL

↓

INCOMING INSPECTION

↓

STORAGE → CUTTING→HAMMERING → PICKING LUBRICATION → CLEANING → PHOSPHORI CLEAN

↓

ENDS CUTTING←STRAIGHTENING←HEAT TREATMENT↔MIDDLLE CHECK↔ COLD DRAWING ← LUBRICATING

↓

FINAL INSPECTION→BUNDING→STORAGE

Widely used in the field of:High pressure boiler

1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.