GB/T 32569 015Cr20Ni18Mo6CuN Welded Stainless Steel Tubes for Seawater Desalination Plants, ASTM A249/A249M, ASTM A268/A268M, ASTM A789/A789M, JIS G3463, 015Cr20Ni18Mo6CuN, 022Cr17Ni12Mo2N, 022Cr19Ni13Mo3, 015Cr24Ni22Mo8Mn3CuN, 022Cr21Ni25Mo7CuN, 022Cr22Ni5Mo3N, 03Cr22Ni2MoCuN, 022Cr28Ni8CoN, 022Cr25Ni7Mo4N, 022Cr18Ti, 019Cr19Mo2NbTi, 019Cr22Mo2, 008Cr27Mo, 019Cr25Mo4Ni4NbTi, 022Cr27Mo4Ni2NbTi, 022Cr29Mo4NbTi

GB/T 32569 Welded Stainless Steel Tubes for Seawater Desalination Plants

Standard: GB/T 32569
Equivalent Standards: ASTM A249/A249M, ASTM A268/A268M, ASTM A789/A789M, JIS G3463

Material: 015Cr20Ni18Mo6CuN
Equivalent Material: X2CrNiMoSi18-5-3, 1.4424, SAF1805

Chemistry Composition

C, %	Si, %	Mn, %	P, %	S, %	Cr, %	Ni, %	Mo	N, %
0.03 max	1.4-2.0	1.2-2.0	0.03 max	0.03 max	18.0-19.0	4.5-5.2	2.5-3.0	0.05-0.10

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %	Hardness, HB
630 min	440 min	30 min	290 max

Outside Diameter & Tolerance

Hot rolled	Outside Diameter, mm	Tolerance, mm
	OD≤101.6	+0.4/-0.8
	101.6＜OD≤190.5	+0.4/-1.2
	190.5＜OD≤228.6	+0.4/-1.6
Cold Drawn	Outside Diameter, mm	Tolerance, mm
	OD＜25.4	±0.10
	25.4≤OD≤38.1	±0.15
	38.1＜OD＜50.8	±0.20
	50.8≤OD＜63.5	±0.25
	63.5≤OD＜76.2	±0.30
	76.2≤OD≤101.6	±0.38
	101.6＜OD≤190.5	+0.38/-0.64
	190.5＜OD≤228.6	+0.38/-1.14

Wall thickness & Tolerance

Hot rolled	Outside Diameter, mm	Tolerance, %
	OD≤101.6, WT≤2.4	+40/-0
	OD≤101.6, 2.4＜WT≤3.8	+35/-0
	OD≤101.6, 3.8＜WT≤4.6	+33/-0
	OD≤101.6, WT>4.6	+28/-0
	OD>101.6, 2.4＜WT≤3.8	+35/-0
	OD>101.6, 3.8＜WT≤4.6	+33/-0
	OD>101.6, WT>4.6	+28/-0
Cold Drawn	Outside Diameter, mm	Tolerance, %
	OD≤38.1	+20/-0
	OD>38.1	+22/-0

GB/T 32569 specifies the size, shape and allowable deviations, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of welded stainless steel tubes for seawater desalination plants. GB/T 32569 is applicable to welded stainless steel tubes for heat exchangers of seawater desalination plants.
GB/T 32569规定了海水淡化装置用不锈钢焊接钢管的尺寸、外形及允许偏差、技术要求、试验方法、检验规则、包装、标志和质量证明书。GB/T 32569适用于海水淡化装置热交换器用不锈钢焊接钢管。

Length: 5800mm; 6000mm; 8000mm; 10000mm; 11800mm; and so on.
Max length: 18000mm, also U bending can be offered.

Keyword: stainless steel tube, stainless steel pipe, heat exchanger steel tube, ASTM A789

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