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Electric Resistant Welded Steel Tube Astm A214 Carbon Steel For Boilers

product name:

ASTM A214 Carbon Steel For Boilers,Superheaters,Heat-Exchangers, Condensers Electric

Applications: for Boilers,Superheaters,Heat-Exchangers, Condensers

Size range: O.D.:6-76mm W.T.:0.9-19.0mm L: according to customer requirement

Manufacture:

Tubes are made by electric-resistance welding.

Surface Condition:

The finished tubes are free of scale., slight amount of oxidation is not considered as scale

Heat treatment:

After welding, all tubes are heat treated at a temperature of 1200℉(650℃) or higher and following by cooling in air or in a cooling chamber of a controlled atmosphere furnace.

Cold drawn tubes shall be heat treated after the final cold-draw pass at a temperature of 1200℉(650℃) or higher

Test and Inspection:

Hardness Requirement

Mechanical Test

- Flattening Test

- Flange Test

- Reverse Test

- Hydrostatic or Nondestructive Electric Test

Steel Grade and Chemical Compositions:

C	0.18
Mn	0.27 to 0.63
P	≤0.035
S	≤0.035

Mechanical Properties
Tensile Streghth: min ksi[Mpa] 47[325]
Yield Point: min ksi[Mpa] 26[180]
Elongation: ≥35%
Hardness: ≤72HRB

Tolerance for OD and WT(SA-450/SA-450M)
OD in(mm)	+	-	WT in(mm)	+	-
＜1''(25.4)	0.10	0.10	≤1.1/2''(38.1)	20%	0
1''～1.1''(25.4～38.1)	0.15	0.15	＞1.1/2''(38.2)	22%	0
＞1.1/2''～＜2''(38.1～50.8	0.20	0.20
2''～＜2.1/2''(50.8～63.5)	0.25	0.25
2.1/2''～＜3''(63.5～76.2)	0.30	0.30
3''～＜4''(76.2～101.6)	0.38	0.38
4''～＜7.1/2''(101.6～190.5)	0.38	0.64
＞7.1/2～9''(190.5～228.6)	0.38	1.14

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Reference Documents:

ASTM A450/A 450M Sepcification for General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes

QUALITY CONTROL

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.

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Categories	Welded Steel Tube
Brand Name:	Torich
Model Number:	ASTM A214
Certification:	ISO9001:2008 ISO14001:2008
Place of Origin:	Zhejiang, China (Mainland)
MOQ:	1 Ton/Tons
Price:	US $800 -1200 / Ton
Payment Terms:	D/A, D/P, L/C, T/T, Western Union, MoneyGram
Supply Ability:	25000 Ton/Tons per Year
Delivery Time:	5-6 weeks
Packaging Details:	packing in hexagonal bundles or wooden boxes
Name:	ASTM A214 Carbon Steel For Boilers,Superheaters,Heat-Exchangers, Condensers Electric Resistance Welded Pipe
Standard:	ASTM A214
Surface:	oiled
Usage:	For Boilers,Superheaters,Heat-Exchangers, Condensers
Technique:	ERW,SAWL,SAWH
OD:	3-420mm
WT:	0.5-50mm
Length:	3-12m