GB 150.2 09CrCuSb Carbon steel tubes, alloy steel tubes and stainless steel tubes used for pressure vessels Part 2: Materials, 12Cr2Mo1, 09MnD, 09MnNiD, 08Cr2AlMo, 09CrCuSb

GB 150.2 Carbon steel tubes, alloy steel tubes and stainless steel tubes used for pressure vessels Part 2: Materials

Standard: GB 150.2

Material: 09CrCuSb, ND

Chemistry Composition

C, %	Si, %	Mn, %	P, %	S, %	Cr, %	Cu %	Sb, %
0.12 max	0.20-0.40	0.35-0.65	0.030 max	0.020 max	0.70-1.10	0.25-0.45	0.04-0.10

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %	Corrosion Resistance rate
390-550	245 min	25 min	≤ 14mg/cm2xh

Outside Diameter & Tolerance

Hot Rolled	Outside Diameter, mm	Tolerance
	Outside Diameter, mm	Ordinary	Advanced
	OD≤54	±0.50mm	±0.30mm
	54＜OD≤325	±1%	±0.75%
	OD>325	±1%	-
Cold Drawn	Outside Diameter, mm	Tolerance
	Outside Diameter, mm	Ordinary	Advanced
	OD≤25.4	±0.15mm	-
	25.4＜OD≤40	±0.20mm	-
	40＜OD≤50	±0.25mm	-
	50＜OD≤60	±0.30mm	-
	OD>60	±0.75%	±0.50%

Wall thickness & Tolerance

Hot Rolled	Wall Thickness, mm	Tolerance
	Wall Thickness, mm	Ordinary	Advanced
	WT≤20	+15%/-10%	±10%
	WT>20	+12.5%/-10%	±10%
Cold Drawn	Wall Thickness, mm	Tolerance
	Wall Thickness, mm	Ordinary	Advanced
	WT≤3	±0.30mm	±0.20mm
	WT>3	±10%	±7.5%

GB 150.2 is applicable to steel tubes for pressure vessels with design temperature of -253℃ to 800℃ and design pressure of not more than 35MPa.

Manufacture: tubes to GB 150.2 shall be manufactured by hot rolled or cold drawn.
Heat Treatment: the tubes shall be produced by heat treated as normalizing.
Inspection & Test: chemistry composition analysis, tension test, flattening test or bending test, flaring test, hardness test (alloy & stainless), impact test, macroscopic examination, non-metallic inclusions, microstructure, intergranular corrosion test (stainless), NDT, surface inspection and dimension check.

Some sizes requested by clients

OD (mm)	WT (mm)	Length (mm)	OD (mm)	WT (mm)	Length (mm)
25.4	2.60	6000	60.3	3.00	5100
33.4	4.00	6000	60.3	3.00	6000
42.0	3.20	2400	60.3	3.60	4150
42.0	4.50	3250	60.3	3.60	4200
50.8	2.50	6000	60.3	4.00	6000
51.0	3.10	6600	63.5	3.20	3500
51.0	3.50	4050	63.5	3.20	3700
60.0	2.50	1806	73.0	3.00	6000
60.0	3.00	2560	73.0	7.00	6000
60.0	3.00	3404	73.0	7.00	12000
60.3	2.34	6000	73.0	7.60	11800
60.3	2.80	3800	73.0	9.00	11800
60.3	3.00	3600	75.0	2.50	1620
60.3	3.00	4700	75.0	2.50	1920
60.3	3.00	4800	76.2	3.00	3000
60.3	3.00	5000	76.2	3.00	5000

Length: 4000mm; 6000mm; 9000mm; 12000mm; and so on.
Max developed length: 30 meters, also U bending, finning, studded process can be provided.
Option: shot blasting on the outside surface to remove mill scale, make the surface matte colour; surface polishing as preparation work done for further processing, for instance finning.

Keyword: GB 150.2, Air preheater Steel Tubes, Heat Exchanger Steel Tubes, Furnace Tubes

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