DIN1629 ST37 ST44 ST52 Round Mild Steel Tubing / Mechanical

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Basic Info

Place of Origin:	Jiangsu China (Mainland)

Product Description

DIN1629 ST37 ST44 ST52 Round Mild Steel Tubing / Mechanical Seamless Steel Tube for Chemical

Quick Detail:

Standard: DIN 1629
Size:(mm)
Out Dimensions: 6mm ~ 350mm
Wall Thickness: 0.8mm ~ 35mm
Length: Fixed(6m,9m,12,24m) or normal length(5-12m)

Description:

1. Standard: DIN 1629
2. Steel grade: ST37, ST44, ST52
3. Delivery condition: Hot-finished
4. Size range: OD Φ 6MM-Φ 350MM, WT 0.8MM-35MM
5. Tolerance: According to DIN 1629
6. Length: Customized according to requirements.
7. Certificate: EN10204/3.1

GENERAL INFORMATION:
Tubes made of un-alloyed steel suitable for the construction of chemical plant, vessels, pipe work and for general mechanical engineering purposes.

Quality control:
Our quality control department consists of experienced technicians. These personnel strictly control the whole production procedure, from introduction of raw materials to finish products. They ensure high quality products for our customers.

DELIVERY CONDITION
Steel grade			Delivery condition
ST37.0			Hot-finished
ST44.0			Hot-finished
ST52.0			Hot-finished

CHEMICAL COMPOSITION( CAST ANALYSIS) IN%
Steel grade	C	Si		p	S
	max		Mn	max	max
ST37.0	0.17	--	--	0.040	0.040
ST44.0	0.21	--	--	0.040	0.040
ST52.0	0.22	--	--	0.040	0.035

MECHANICAL PROPERTIES
Steel grade	Yield strength Min (Mpa)		Tensile strength Min(Mpa)		Elongation A Min(%)
	T min mm
	≤16	>16 ≤40
ST37.0	235	225	350-480		25
ST44.0	275	265	420-550		21
ST52.0	355	345	500-650		21
Note: T: thickness; L: longitudinal

The Tolerance of Length:

The Type of Length	The Tolerance mm
≤6m	+100
>6m ≤12m	+150mm
>12m	according to the negotiation

The Toleracne of Diameter :

The Diameter mm	The Tolerance
≤100	±1% da ( ±0.5mm is alsiviable )
100<da≤200	±1% da
>200	±1% da

The Tolerance of the Wall Thickness:

The tolerance is according to the diameter
da≤130mm			130mm<da≤320mm			320mm<da≤660mm
Wall Thickness S
≤2	2•Sn<S≤4•Sn	>4•Sn	≤0.05da	0.05da<S≤0.11da	>0.11da	≤0.05da	0.05da<S≤0.09da	>0.09da
+15% -10%	+12.5% -10%	+17.5% -12.5%	+17.5% -12.5%	±12.5%	±10%	+20% -15%	+15% -12.5%

Applications:

Mechanical Seamless Steel Tube DIN1629

Mainly used for greenhouse pipes, scaffolding pipes, transportation the ocean oil and gas,

mechanical tube of ocean platform, power station, chemical industry and building, construction foundation piles, steel structure building, for low-pressur fluid service, steel structure bridges etc.

Competitive Advantage:

Huacheng Pipe Making Company is one of the largest seamless steel pipe manufacturers in China.We’ve passed API 5L,API 5CT, PED, BV, TUV certification and ISO quality system certification.With good quality and competitive price, we believe we could be your reliable supplier.

Factroy Pictures:

Pipe & Tube Processing

Factory Equipments:

Production Line:

Quality Control:

Steel Pipe & Tube Application:

Package:

Export Standard / Wooden Box

Main Certificates:

PED ISO BV TUV etc.

Main Customers:

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