EN 10294-1 E355+N级汽车用无缝光亮退火钢管

Product Details:
Place of Origin:China
Brand Name:	YUANFANG
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:	ASTM A269 TP316L
Payment & Shipping Terms:
Minimum Order Quantity:	1000kgs
Price:	Negotiable
Packaging Details:	Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case
Delivery Time:	Depends on quantity
Payment Terms:	T/T, L/C
Supply Ability:	1000 tons per month

产品详情:

EN 10294-1 E355+N级碳钢无缝光亮退火管

标准：EN 10305-1

等效标准NF 699、DIN 2391、ASTM A519、GOST 9567-75、NBR 8476、BS 6323第4部分、NF A 49-330-85、BS 6323-4、NF A 49/310、UNI 6403

材料E355，1.0580

等效材料St52、St52.4、CFS 5、TU 52-b、Q345B、S355GT、TU 526、FE 510

符合EN 10305标准的管子具有精确定义的尺寸公差和规定的表面粗糙度。符合EN 10305标准的无缝精密钢管必须由热加工无缝钢管通过冷拔制成。允许采用其他合适的冷加工方法。管子应在+N交货条件下交货，这意味着在最终冷拔操作后，管子应在受控的气氛中进行正火处理。

Specification

Name	E355+N Black Phosphated Steel Tube with High Precision
Specification	DIN2391-94/C, EN10305-1, EN10305-4, SAE J524, GB/T3639-2009
Steel Grade	St35, St37.4, St45, St52.4, E235, E255, E355
Size	OD:3-76mm, wall thickness: 0.5-6mm
Length	4m,6m or customized
Delivery Conditions	NBK(+N), BK(+C), GBK(+A), BKW(+LC), BKS(+SR)
Features	High cleanness inside wall, No deformation after cold bending, no crack after flaring and flattening, complicated geometrical forming and machining can be realized
Applications	Used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required

Chemical Compositions

Steel Gr.	Steel No.	Chemical Compositions(%by mass)
Steel Gr.	Steel No.	C(max)	Si(max)	Mn	P(max)	S(max)	Al(min)Total
St35, St37.4(E235)	1.0305	0.17	0.35	≥0.40	0.025	0.025	0.015
St45(E255)	1.0408	0.21	0.35	≥0.40	0.025	0.025	0.015
St52, St52.4(E355)	1.0508	0.22	0.55	≤1.60	0.025	0.025	0.02

Mechanical Properties

Steel Gr.	Steel	BK		BKW		BKS			GBK		NBK
	No.	Rm	A	Rm	A	Rm	ReH	A	Rm	A	Rm	ReH	A
		MPa	%	MPa	%	MPa	MPa	%	MPa	%	MPa	MPa	%
		Min	Min	Min	Min	Min	Min	Min	Min	Min		Min	Min
St35(E235)	1.0305	480	6	420	10	420	315	14	315	25	340-470	235	25
St45(E255)	1.0408	580	5	520	8	520	375	12	390	21	440-570	255	21
St52(E355)	1.0508	640	4	580	7	580	420	10	490	22	490-630	355	22

EN 10305-1 Delivery Condition

Term	Symbol	Explanation
Cold-finished/hard	+C	No heat treatment after the final cold drawing process
Cold-finished/soft	+LC	After the final heat treatment there is a suitable drawing pass.
Cold Drawn and Stress Relieved	+SR	After the final cold-forming process there is Stress relief heat treatment in a controlled atmosphere.
Annealed	+A	After the final cold drawing process the tubes are annealed in a controlled atmosphere.
Normalized	+N	After the final cold drawing process the tubes are Normalized in a controlled atmosphere.