DIN2391 Cold Rolled Seamless Steel Tube Round Pipe

• Customization: Available
• Type: Seamless
• Technique: Cold Rolled
• Model NO.: CRS-2
• Material: Carbon Steel
• Surface Treatment: Ba(Bright Annealed), Black Phosphated, Galvanizing
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Mining, Special Purpose
• Section Shape: Round
• Standard: DIN 1629, 2391, 1630, En10305-1 10305-4, ASTM A519
• Delivery Condition: Bkw, Bks, +LC, +Sr
• Steel Grade: St35/45/52/37.4/44.4/52.4/E255/355/235 etc
• Certificate: ISO 9001 Ts16949
• Secondary or Not: Non-Secondary
• Application: Precision Application
• Transport Package: Bundles or Boxes
• Specification: OD5-250mm
• Origin: China
• HS Code: 7304319000

Product Description

Detailed Photos

 

 

Standards

Standard	Material Chemical Composition (%)
	Steel Grade	Material Number	C	Si	Mn	P	S	Cr	Mo
DIN 2391	ST35	1.0308	<= 0.17	<= 0.35	>=0.04	<=0.025	<=0.025	-	-
	ST45	1.0408	<= 0.21	<= 0.35	>=0.04	<=0.025	<=0.025	-	-
	ST52	1.058	<= 0.22	<= 0.55	<=1.60	<=0.025	<=0.025	-	-

Standard	Material Chemical Composition (%)
	Steel Grade	Material Number	C	Si	Mn	P	S	Cr	Mo
DIN1629	ST37	1.0254	<= 0.17	<= 0.55	<=1.60	<=0.04	<=0.04	-	-
	ST44	1.0258	<= 0.21	<= 0.55	<=1.60	<=0.04	<=0.04	-	-
	ST52	1.0421	<= 0.22	<= 0.55	<=1.60	<=0.04	<=0.035	-	-
DIN1630	ST37.4	1.0255	<= 0.17	<= 0.35	>=0.035	<=0.04	<=0.04	-	-
	ST44.4	1.0257	<= 0.21	<= 0.35	>=0.04	<=0.04	<=0.04	-	-
	ST52.4	1.0281	<= 0.22	<= 0.55	<=1.60	<=0.04	<=0.035	-	-

Standard	Material Chemical Composition (%)
	Steel Grade	Material Number	C	Si	Mn	P	S	Cr	Mo
EN10305-1 EN10305-4	E235	1.0308	<= 0.17	<= 0.35	>=0.04	<=0.025	<=0.025	-	-
	E255	1.0408	<= 0.21	<= 0.35	>=0.04	<=0.025	<=0.025	-	-
	E355	1.058	<= 0.22	<= 0.55	<=1.60	<=0.025	<=0.025	-	-

Standard	Material Chemical Composition (%)
	Steel Grade	Material Number	C	Si	Mn	P	S	Cr	Mo
ASTM A519	1010	-	0.08-0.13	-	0.3-0.6	≤0.04	≤0.05	-	-
	1020	-	0.18-0.23	-	0.3-0.6	≤0.04	≤0.05	-	-
	1045	-	0.43-0.50	-	0.6-0.9	≤0.04	≤0.05	-	-
	4130	-	0.28-0.33	0.15-0.35	0.40-0.60	≤0.04	≤0.05	0.8-1.1	0.15-0.25
	4140	-	0.38-0.43	0.15-0.35	0.75-1.0	≤0.04	≤0.05	0.8-1.1	0.15-0.25

Standard	Material Chemical Composition (%)
	Steel Grade	Material Number	C	Si	Mn	P	S	Cr	Mo
JIS G3445	SKTM 12C	-	<= 0.12	<= 0.35	<= 0.60	<=0.04	<=0.04	-	-
	STKM 13C	-	<= 0.25	<= 0.35	0.3-0.9	<=0.04	<=0.04	-	-

Standard	Material Chemical Composition (%)
	Steel Grade	Material Number	C	Si	Mn	P	S	Cr	Mo
GB/T 8162 GB/T 8163 GB/T 3639	10	-	0.07-0.14	0.17-0.35	0.35-0.65	<=0.035	<=0.04	-	-
	20	-	0.17-0.23	0.17-0.37	0.35-0.65	≤0.035	≤0.035	-	-
	45	-	0.42-0.50	0.17-0.37	0.50-0.80	≤0.035	≤0.035	-	-
	Q345B	-	≤0.20	≤0.50	<=1.70	≤0.035	≤0.035	-	-

Delivery Condition: BKW, BKS, +LC, +SR
ID tolerance can minimized to +/-0.02mm
OD: 5- 250mm
ID: 3- 200mm

Equivalent Material referance:
GB	TOCT	ASTM	BS	JIS	NF	DIN
10F		1010	040A10		XC10
10	10	10,101,012	045M10	S10C	XC10	C10,CK10
20	20	1020	050A20	S20C	XC18	C22,CK22
45	45	1045	080M46	S45C	XC45	C45,CK45
30CrMo	30XM	4130	1717COS110	SCM420	30CD4
42CrMo		4140	708A42		42CD4	42CrMo4
			708M40
35CrMo	35XM	4135	708A37	SCM3	35CD4	34CrMo4

Applications

1. For Vehicle (Automotive, locomotive, Construction Machinery like Concrete pump and others)
Power steering system, Shock absorber, vibration damper , engine parts and others
2. Hydraulic cylinder, Industry Jacks
3. Fitness equipment,motor casings and auto parts.

Other precision surface required devises
 

Manufacture Process

 

Company Profile

 

Chewit International

Chewit international Located in zhangjiagang city which is along The Yangtze Golden Channel the junction of River and Coast Economic Belt. It owns an excellent geographic position, as it is close to Nanjing city in the north, adjacent to Suzhou and Wuxi cities in the south, next to Shanghai international city in the east. Zhangjiagang international port and State highway endow us a convenient water and land transportation which links us to the outside world both home and aboard. Chewit International is one group company with two manufactures one is producing steel forgings for Marine, Power, Boiler, Ocean, Oil, Petrochemical, Mechanical and Hydraulic fields and the other is producing precision steel tubes for automotive industry and hydraulic system and also one semi-independent company specially for import and export business. We have a total area of 150000 square meters with the employees over 200 people. All the products well produced by our mills need to be double inspected by chewit professional quality controller and then we will offer our customer the vivid report for the tested items. Only those products which are inspected well can be allowed to delivery to our customers. By the means of strict inspection, we wined a lot of customer for long term business both home and abroad. We adhere to our company tenet Customer First, Quality formost and always try our best to serve our customer with our full heart.

 

Packaging & Shipping