GB13296 Seamless Stainless Steel Heat Exchanger Boiler Pipe

GB13296 Seamless Stainless Steel Heat Exchanger Boiler Pipe

 

Standard: GB13296 Seamless Stainless Steel Tubes For Boiler And Heat Exchanger 

 

Usage: This standard is applicable to Austenite and Ferritic seamless stainless steel tubes for boiler and heat exchanger.

 

Production process: Seamless tube can be produced by Hot Treatment, Cold Drawing or Cold Rolling.

 

Note: Special steel grade is also available, according to customer request.

 

 Permissible deviation of outside diameter and wall thickness

Classification	Nominal size		Allowable deviation
W-H	OD	≤140	±1.25%D
		>140	±1%D
	S	≤3	-40%S
		>3~4	-35%S
		>4~5	-33%S
		>5	-28%S
W-C	OD	6~30	+0.15 -0.20
		>30~50	±0.30
		>50	±0.75%D
	S	D≤38	+20%S
		D>38	-22%S

 

Steel grade and chemical composition

Number	Steel grade	Chemical Composition %
		C	Si	Mn	P	S	Ni	Cr	Mo	Ti
1	0Cr18Ni9	≤0.07	≤1.00	≤2.00	≤0.035	≤0.030	8.00~ 1.00	17.00~ 19.00	—	—
2	1Cr18Ni9	≤0.15	≤1.00	≤2.00	≤0.035	≤0.030	8.00~ 10.50	17.00~ 19.00	—	—
3	1Cr19Ni9	0.04~0.10	≤1.00	≤2.00	≤0.035	≤0.030	8.00~ 12.00	18.00~ 20.00	—	—
4	00Cr19Ni10	≤0.030	≤1.00	≤2.00	≤0.035	≤0.030	8.00~ 12.00	18.00~ 20.00	—	—
5	0Cr18Ni10Ti	≤0.08	≤1.00	≤3.00	≤0.035	≤0.030	9.00~ 12.00	17.00~ 19.00	—	≥5C
6	1Cr18Ni11Ti	0.04~0.10	≤0.75	≤2.00	≤0.030	≤0.030	9.00~ 13.00	18.00~ 20.00	—	4Xc~ 0.60
7	0Cr18Ni11Nb	≤0.08	≤1.00	≤2.00	≤0.035	≤0.030	9.00~ 13.00	17.00~ 20.00	—	—
8	1Cr19Ni11Nb	0.04~0.10	≤1.00	≤2.00	≤0.035	≤0.030	9.00~ 13.00	17.00~ 20.00	—	—
9	0Cr17Ni12Mo2	≤0.08	≤1.00	≤2.00	≤0.035	≤0.030	11.00~ 14.00	18.00~ 20.00	2.00~ 3.00	—
10	1Cr17Ni12Mo2	0.04~0.10	≤0.75	≤2.00	≤0.030	≤0.030	11.0~ 14.00	16.00~ 20.00	2.00~ 3.00	—

 

 

 

 

 

 

 

 

 

 

 

 

GB13296 Seamless Stainless Steel Tubes For Boiler And Heat Exchanger