JIS G3429 Seamless steel tubes

JIS G3429 Seamless steel tubes

JIS G3429, seamless steel tube, seamless steel tubes, JIS G3429 STH11, JIS G3429 STH12, JIS G3429 STH21, JIS G3429 STH22

JIS G3429 standard specifies the seamless steel tubes, hereinafter referred to as the tube used for the manufacture of seamless steel gas cylinders specified in JIS B8230 and JIS B8241.

Application: Seamless Steel Tubes in High Pressure Gas Cylinder

Standards: JIS G3429
Size range (mm):

• Outer Dimensions: 19.05mm ~ 114.3mm
• Wall Thickness:2.0mm ~ 14 mm
• Length: max 16000mm

The main products of steel / steel grade:

• JIS G3429 STH11
• JIS G3429 STH12
• JIS G3429 STH21
• JIS G3429 STH22

Packing:

• Packed in wooden crates, wrapped in plastic, and suitably protected for sea-worthly delivery or as requested.
• Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.

Delivery:

• Pipes are supplied in hexagonal bundles or round bundles tied with steel strip.
• Weight of bundle-up to 5000 kg upon request of customer.
• Each bundle is furnished with three tags.

Chemical Compositions(%)

Grade	C	Si	Mn	P	S	Ni	Cr	Mo
STH11	≤0.50	0.10-0.35	≤1.80	≤0.035	≤0.035	/	/	/
STH12	0.30-0.41	0.10-0.35	1.35-1.70	≤0.030	≤0.030	/	/	/
STH21	0.25-0.35	0.15-0.35	0.40-0.90	≤0.030	≤0.030	≤0.25	0.80-1.20	0.15-0.30
STH22	0.33-0.38	0.15-0.35	0.40-0.90	≤0.030	≤0.030	≤0.25	0.80-1.20	0.15-0.30

JIS G3456 Seamless tubes for high pressure service

JIS G3456 Carbon steel pipes, Seamless pipes for high temperature service at a temperature over 350 Degrees celsius.

carbon steel pipe, carbon steel pipes, JIS G3456, JIS G3456 STPT370, JIS G3456 STPT410, JIS G3456 STPT480, Seamless pipe, Seamless Pipes, Steel pipe

Standard:

JIS G 3456:2010

JIS, Japanese Industrial Standards specifies the standards used for industrial activities in Japan.

Size range of JIS G3456(mm):

• Outer Dimensions: 19.05mm- 114.3mm
• Wall Thickness:2.0mm -14 mm
• Length: max 16000mm

Application:

• Carbon steel pipes for pressure service
• High pressure service and high temperature service at  a temperature over 350 Degrees celsius

Packing:

• Be packed in Bare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements .
• Surface: Varnish coating
• Ends: Beveled or Plain ends with Plastic caps
• Painting: as requested.

Inspection & Certification:

1) Certification: ISO, API, ASTM, DIN etc.
2) Mill Test Certificate: EN10204/3.1B
3) Third party inspection: SGS, BV, Lloyds etc.

The main products of steel / steel grade:

• JIS G3456 STPT370
• JIS G3456 STPT410
• JIS G3456 STPT480

Chemical Compositions(%) of JIS G3456

Standard/ Grade	C	Si	Mn	P	S
JIS G3456 STPT370	≤0.25	0.10-0.35	0.30-0.90	≤0.035	≤0.035
JIS G3456 STPT410	≤0.30	0.10-0.35	0.30-1.00	≤0.035	≤0.035
JIS G3456 STPT480	≤0.33	0.10-0.35	0.30-1.00	≤0.035	≤0.035

Mechanical Properties of JIS G3456

Standard/ Grade	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)
JIS G3456 STPT370	≥216	≥370	≥30
JIS G3456 STPT410	≥245	≥410	≥25
JIS G3456 STPT480	≥275	≥480	≥25

Tolerance on Outside Diameter and Wall Thickness in JIS G3456

APPLICATION	TOLERANCE ON OUTSIDE DIAMETER		TOLERANCE ON WALL THICKNESS
Hot Rolled Seamless Pipes	< mmspan>	±0.5mm	< mmspan>	±0.5mm
	<50-160mm	±1%
	<160-200mm	±1.6mm	<4mm	±12.5%
	<200mm	±0.8%
	More that 350mm, the Tolerance is ±0.5%
Cold Drawn Seamless Pipes and Electric Resistant Welded Pipes	< mmspan>	±0.3mm	< mmspan>	±0.2mm
	<40mm	±0.8%	<2mm	±10%
	More than 350 mm the Tolerance is ±0.5%

JIS G3461 Carbon Steel Boiler and Heat Exchanger Tubes

JIS Carbon Steel Boiler and Heat Exchanger Tubes

JIS G3461 is a JIS standard refers to boiler tubes,heat exchanger tubes, condenser tubes etc. This steel pipe is used in carbon steel pipes for tube heat-exchange inside and outside, such as boiler water steel pipe, superheater tube, condenser tube and more.

However, it is not applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service.

The size range of  JIS G3461 boiler tube(mm):

• Outer Dimensions: 19.05mm-168.3mm
• Wall Thickness:2.0mm- 14 mm
• Length: max 19000mm

Application of JIS G3461 seamless tubes:

• used for exchanging heat on the inside and outside of the tube, such as water tubes, smoke tubes, superherater tubes, air preheater tubes, etc. of boilers, and heat exchanger industries.
• it is not applicable to the steel tubes for heating furnace and those for heat exchangers for low temperature service.

The main products of steel / steel grade:

• JIS G3461 STB340
• JIS G3461 STB410
• JIS G3461 STB510

JIS G3461 tube Chemical Compositions(%)

Grade	C	Si	Mn	P	S	Cr	Mo
G3461 STB340	≤0.18	≤0.35	0.30-0.60	≤0.035	≤0.035	/	/
G3461 STB410	≤0.32	≤0.35	0.30-0.80	≤0.035	≤0.035	/	/
G3461 STB510	≤0.25	≤0.35	1.00-1.50	≤0.035	≤0.035	/	/

JIS G3461 tube Mechanical Properties

Grade	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)
G3461 STB340	≥175	≥340	≥35
G3461 STB410	≥255	≥410	≥25
G3461 STB510	≥295	≥510	≥25

Corresponding to international standards

• ISO 9329-2:1997 Seamless steel tubes for pressure purposes−Technical delivery conditions−Part 2: Unalloyed and alloyed steels with specified elevated temperature properties.
• ISO 9330-2:1997 Welded steel tubes for pressure purposes−Technical delivery conditions−Part 2: Electric resistance and induction welded unalloyed and alloyed steel tubes with specified elevated temperature properties.

Delivery Condition:

• Heat treatment,Annealed, Normalized, Normalized and Tempered

Surface treatment:

• Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
• Painting as requested.

boiler tube, boiler tubes, G3461 STB510, heat exchanger tubes, JIS G3461 STB340, JIS G3461 STB410, Seamless tube, seamless tubes, steel tube

DIN 1629 Seamless Tubes

DIN 1629 Seamless Tubes

DIN1629, DIN1629 ST37.0, DIN1629 ST44.0, DIN1629 ST52.0, seamless steel tubes, Seamless tube

DIN 1629 is the standard specifies the Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements.

DIN 1629 Size range (mm):

• Outer Dimensions: 6.0mm-219.0mm
• Wall Thickness: 1.0mm-30 mm
• Length: max 12000mm

Application:

• It is used for manufacturing pipeline,vessel,equipment,pipe fittings .
• These tubes are prodominantly used in construction of chemical plant, vessels, pipework and for genearl mechanical engineering purpose.

The main products of steel / steel grade:

• DIN1629 ST37.0
• DIN1629 ST44.0
• DIN1629 ST52.0

Delivery Condition:

• Heat treatment,Annealed, Normalized, Normalized and Tempered

Surface treatment:

• Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
• Painting as requested.

Chemical Compositions(%) of DIN1629

Grade	C	Si	Mn	P	S
DIN1629 ST37.0	≤0.17	/	/	≤0.040	≤0.040
DIN1629 ST44.0	≤0.21	/	/	≤0.040	≤0.040
DIN1629 ST52.0	≤0.22	≤0.55	≤1.70	≤0.040	≤0.035

 Mechanical Properties of DIN1629

Grade	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)L	Elongation (%)T
DIN1629 ST37.0	≥235	350-480	25	23
DIN1629 ST44.0	≥275	420-550	21	19
DIN1629 ST52.0	≥355	500-650	21	19

Amounts by which the chemical composition in the product analysis may deviate from the limiting values applicable to the cast analysis

Element	Amount by which the product analysis may deviate from
	the limiting values applicable to the analysis % by mass
C	+0,02
P	+0,010
S	+0,010
N	+0,001¹)

¹) A contant in excess of the maximum value stated is permitted if a phosphorus content less than the maximum specified by 0,005% P per 0,001% N is observed. However, the nitrogen contant shall not exceed a value of 0,012% in the cast analysis and 0,014% in the product analysis (this does not apply to the RR type of deoxidization.

DIN 17175 steel seamless pipes

DIN 17175 steel seamless pipes

10CrMo910, 13CrMo44, 15Mo3, DIN17175, DIN17175 St35.8, DIN17175 St45.8, Seamless pipe, Steel pipe, steel pipes

DIN 17175 steel pipes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high temperature and high-pressure devices.
DIN 17175 alloy steel pipe is just a big class,and it has many classifivations. We mainly produce DIN 17175 ST35.8,DIN 17175 ST45.8, and 10CrMo910 steel pipes.
This alloy steel pipe is just a big class,and it has many classifivations.
We mainly produce DIN 17175 ST35.8,DIN 17175 ST45.8, and 10CrMo910 steel pipes.

Steel grade:

• DIN17175 St35.8
• DIN17175 St45.8
• 15Mo3
• 13CrMo44
• 10CrMo910

Chemical Compositions of DIN 17175 steel pipes (%)

Grade	C	Si	Mn	P	S	Cr	Mo
St35.8	≤0.17	0.10-0.35	0.40-0.80	≤0.040	≤0.040	/	/
St45.8	≤0.21	0.10-0.35	0.40-1.20	≤0.040	≤0.040	/	/
15Mo3	0.12-0.20	0.10-0.35	0.40-0.80	≤0.035	≤0.035	/	0.25-0.35
13CrMo44	0.10-0.18	0.10-0.35	0.40-0.70	≤0.035	≤0.035	0.70-1.10	0.46-0.65
10CrMo910	0.08-0.15	≤0.50	0.40-0.70	≤0.035	≤0.035	0.20-0.25	0.90-1.20

Mechanical Properties of DIN17175 steel pipe

Grade	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation(%)
St35.8	≥235	360-480	25
St45.8	≥255	410-530	21
15Mo3	≥275	450-600	20
13CrMo44	≥290	440-590	20
10CrMo910	≥280	450-600	18

Packing:

• Inner packing:Caps on two ends of every pipe
• Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements .
• Surface treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting.
• Marking: as per customer’s requirement

Read more:

DIN: Deutsche Industrie Normen (=German Industry Standard) 德国工业标准

DIN标准与欧洲标准EN和国际标准ISO的关系

德国是欧洲标准化委员会CEN(European Committee for Standardixation)的18个成员国之DIN在CEN中起着重要的作用，CEN中有三个之一的技术委员会秘书国由德国担任。DIN在制、修订标准时不断考虑到国际上和欧洲的动向，所以其经营的标准化项目数量也是逐年变化。在1984年DIN的标准化项目中有5％是国际标准化项目，12％是欧洲标准化项目，83％纯粹是本国国家标准，到1994年国际标准化和纯德国标准化部分各占25％，而欧洲标准化部分则为50％。随着时间推移越来越多的欧洲标准ENS(Europaeische Norms)已被德国采用作为新的DIN EN标准而取代了原来的DIN标准，如德国现有200多个钢铁产品标准中有近一半采用了欧洲标准，预计再过5-6年欧洲标准ENS将达到20，000个，这意味着23000个DIN标准中有20，000个是经过欧洲协调好的。

DIN2391 Seamless Precision Steel Tube

DIN2391 Seamless Precision Steel Tube

DIN2391 Seamless Precision Steel Tube

BKS, carbon steel tubes, din 2391, precision steel tube, Seamless tube, seamless tubes, steel tubes

DIN 2391 standard specifies theSeamless Precision Steel Tube used for Mechanical and Automobile.

Carbon steel tubes for machine structural purposes .
Standard:

• DIN2391-1: Seamless Precision Steel Tube.
• EN 10305-1: Steel tubes for precision applications.

Size (mm):

• Outer Dimensions: 4.0mm-60.0mm
• Wall Thickness: 0.5mm-8 mm
• Length: max 6000mm

Application:

• motor-car construction
• pneumatic
• hydraulic operating mechanisms

Steel grade:

• DIN2391-1 ST35
• DIN2391-1 ST45
• DIN2391-1 ST52

Delivery Condition:

• GBK, BKS, BK, BKW, NBK

Inspection and Test:

• Chemical Composition, Mechanical Properties
• Visual and Dimension Test
• NDT
• Grain Size Test

Surface treatment:

• Oil-dip, Varnish, Shot Blasting

Packing:

• Inner packing:Caps on two ends of every pipe
• Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements .
• Surface treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting.
• Marking: as per customers requirement

DIN2391-1: Chemical compositions(%)

Grade	C	Si	Mn	P	S
DIN2391 ST35	≤0.17	≤0.35	≥0.40	≤0.050	≤0.050
DIN2391 ST45	≤0.21	≤0.35	≥0.40	≤0.050	≤0.050
DIN2391 ST52	≤0.22	≤0.55	≥1.60	≤0.050	≤0.050

DIN2391-1: Mechanical properties

Grade	BK		BKW		BKS			GBK		NBK
	Rm N/mm min	min	Rm N/mm min	min	N/ mm min	ReH N/mm min	min	N/ mm min	min	N/mm min	ReH N/mm min	min
DIN2391 ST35	480	6	420	10	420	315	14	315	25	340-470	235	25
DIN2391 ST45	580	5	520	8	520	375	12	390	21	440-570	235	21
DIN2391 ST52	640	4	580	7	580	420	10	490	22	490-630	355	22