YB/T 4330 12Cr18Ni9 Large Diameter Seamless Austenitic Stainless Steel Pipes, ASTM SA312, 12Cr18Ni9, 06Cr19Ni10, 022Cr19Ni10, 07Cr19Ni10, 06Cr23Ni13, 06Cr25Ni20, 06Cr17Ni12Mo2, 022Cr17Ni12Mo2, 07Cr17Ni12Mo2, 06Cr18Ni11Ti, 07Cr19Ni11Ti, 06Cr18Ni11Nb, 07Cr18Ni11Nb

YB/T 4330 Large Diameter Seamless Austenitic Stainless Steel Pipes

Standard: YB/T 4330
Equivalent Standards: ASME SA312

Material: 06Cr19Ni10
Equivalent Material: TP304L, UNS S30403, 04Ch18N10

Chemistry Composition

C, %	Si, %	Mn, %	P, %	S, %	Cr, %	Ni, %	N, %
0.03 max	1.00 max	2.00 max	0.045 max	0.015 max	18.0-20.0	10.0-12.0	0.11 max

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %
460-680	180 min	40 min

Outside Diameter & Tolerance

Hot rolled	Outside Diameter, mm	Tolerance
	44.5≤OD≤219.1	D1, ±1.5% or ±0.75mm
	44.5≤OD≤219.1	D2, ±1% or ±0.5mm
	219.1＜OD≤610	D1, ±1.5% or ±0.75mm
Cold Drawn	Outside Diameter, mm	Tolerance
	OD≤219.1	D2, ±1% or ±0.5mm
	OD≤219.1	D3, ±0.75% or ±0.3mm
	OD≤219.1	D4, ±0.5% or ±0.1mm

Wall thickness & Tolerance

Hot rolled	Outside Diameter, mm	Tolerance
	44.5≤OD≤219.1	T1, ±15% or ±0.6mm
	44.5≤OD≤219.1	T2, ±12.5% or ±0.4mm
	219.1＜OD≤610, WT≤0.05*OD	+22.5%/-15%
	219.1＜OD≤610, 0.05OD＜WT≤0.09OD	T1, ±15% or ±0.6mm
	219.1＜OD≤610, WT>0.09*OD	T2, ±12.5% or ±0.4mm
Cold Drawn	Outside Diameter, mm	Tolerance
	OD≤219.1	T3, ±10% or ±0.2mm
	OD≤219.1	T4, ±7.5% or ±0.15mm

YB/T 4330 specifies the classification, code, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of large diameter seamless austenitic stainless steel pipes. YB/T 4330 is applicable to seamless austenitic stainless steel pipes with outer diameter not less than 426mm for petrochemical and coal chemical devices, power station equipments and ancillary facilities.
YB/T 4330规定了大直径奥氏体不锈钢无缝钢管的分类、代号、尺寸、外形、重量、技术要求、试验方法、检验规则、包装、标志和质量证明书。YB/T 4330适用于外径不小于426mm的石油化工和煤化工装置、电站设备和配套设施用奥氏体不锈钢无缝钢管。

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, DIN 17456

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