1.seamless steel tubes for petroleum cracking2.O.D.:8.7mm~720mm
3.W.T.:0.75mm~120mm
4.Application:boiler,heat exchanger, parts of auto
5.Cert.: ISO
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Detailed Product Description

Hunan new materials industry Group owns six factories, including pipes, fittings, casting-fitting production, forged fittings, and pipe accessories ( Galvanizing, anti-corrosive, insulation, etc.,) workshop.

1	Product		seamless steel tubes for petroleum cracking
2	Standard	U.S.A.	ASTM A178/A179/A192/A210/A213/A333/A335/A283/A135/A214/315/A500/A501/A519/A161/A334;
		Japan	JIS G3456/G3457/G3458/G3460/3461/3462/3464
		German	17175/1629-4/2448/2391/17200 SEW680
3	Material and Grade	U.S.A.	A179/A192/A-1/T11/T12/T22/P1/FP1/T5/4140/4130
		Japan	STPG38,STB30,STS38,STB33,STB42,STS49,STBA23,STPA25,STPA23,STBA20
		German	ST33,ST37,ST35,ST35.8,ST45,ST52,15Mo3,13CrMo44, 1.0309, 1.0305, 1.0405
4	Out Diameter		8.7mm-720mm
5	Wall Thickness		0.75mm-120mm
6	Length		4-12m
7	Protection		Plastic caps/ Wooden case
8	Surface		Black painting/varnished surface,anti-corrosion oil, galvanized or as per required by customer
9	Packing terms		labeled and bundled together with steel strip
10	Shipment terms		Containers or bundles by sea,one 20" container can load about 20 tons(5.8meters long),one 40" container can load about 23-26tons(less than 11.8meters long)
11	Marking		As per customer’s requirement
12	Production capacity		with full production capacity.400,000tons per year
13	Delivery time		20-90days
14	Main market		Asia.India.Middle East.America.Europe
15	Min. Order quantity		2~10 tons
16	Quality Certificate		ISO, API, Mill Test Certificate
17	Contact:		Hunan New Materials Industry Group Co., Ltd Add.: 333, Wuyi Road, Changsha, Hunan, China Tel: 0086-731-88991971 Fax:0086-731-84489078 Web:www.steelchina.net.cn Contact: Robert Zuo

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Chemical composition and mechanical properties

Standard	materials and grade	Chemical compositions
		C	Si	Mn	P	S	Cr	Ni	Cu
4130	4130	0.26~0.34	0.2~0.4	0.4~0.7	≤0.035	≤0.035	0.8~1.1	≤0.030	≤0.030
4140	4140	0.38~0.43	0.15~0.35	0.75~1	≤0.03	≤0.045	0.8~1.1	≤0.030	≤0.030
Standard	materials and grade	Mechanical Properties
		Tensile Strength(Mpa)			Yield Strength(Mpa)			Elongation(%)
4130	4130	≥930			≥785			≥12
4140	4140	≥1080			≥930			≥12

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