201 polished 600 grind stainless steel square pipe

Technology	Hot rolled and cold rolled ERW welded stainless steel tube
Certificate	ASTM A554, A249, A269, A270, A312; BS EN10312:2002; MS1988; ISO9001:2008
Element contain list	Material	201	202	304		316	430	409
	Composition
	C	0.073	0.055	0.042		≤0.08	≤0.12	≤0.08
	Si	0.364	0.416	0.46		≤1.00	≤1.00	≤1.00
	Mn	9.282	7.483	1.03		≤2.00	≤1.00	≤1.00
	P	0.0329	0.0393	0.044		≤0.045	≤0.040	≤0.045
	S	0.0051	0.0032	0.004		≤0.030	≤0.030	≤0.030
	Cr	14.912	15.958	18.35		16-18	16-18	10.5-11.75
	NI	1.246	4.079	8.03		10.0-14.0	≤0.60
	Mo					2.0-3.0
	Cu	1.46	1.494
Test	Material Item		201	202		304	316	409l
	Tensile Strength		≥535	≥520		687	≥520	≥360
	Yield Strength		≥245	≥205		287	≥205	≥ 175
	Extension		≥30%	≥30%		52.50%	≥35%	≥25%
	Hardness (HV)		<253	<253		187	<200	<175
Term &   Codition	Optional   Technology		Annealed,   Pickling, Brushed, Sand-blasted, Inner leveling
	Surface quality		No imperfections, No scratches or dents on the surface, cutting edges no deburred
	Surface finish		Mill surface, 80G, 180G, 320G, 400G satin / hairline
			400G, 500G, 600G or 800G mirror polish
	Test		Extended test, Water pressure test,
	Diameter		6mm--304.8mm
	Thinkness		0.3-5mm
	Length		5.8-6m or Customized
	Tolerance		a)Outer Diameter:  +/- 0.1mm
			b) Thickness: +/- 0.02mm
			c) Length: + 10-30mm
	Package		Every tube is   sleeved in plastic bag individually, and then several tubes are packed by   weaving bag put in iron wooden box. Packing by clients' requirement is   accepted