Lork ASTM A312/Uns S30400 /ASTM a 358 Steel Rod for Heat Exchangers TP304 Tube Stainless Steel Bar

• Customization: Available
• Type: Stainless Steel Bars
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Certification: ISO, AISI, ASTM, GB
• Shape: Round
• Technique: Cold Rolled
• Surface Treatment: Pickling
• Key Words: Tp 304 Bar/Rod
• Diameter: 3mm- 600mm
• Length: as Your Requirments
• Diameter Tolerance: H9, H11, H13, K9, K11, K13 etc
• Sample: Free-Sample
• Surface: Lack, Peeled, Polishing, Bright, Sand Blast, Hl
• MOQ: 100kgs
• Stock: in Stock
• Transport Package: Wooden Package
• Specification: tp304
• Trademark: LORK
• Origin: China
• HS Code: 7219350000
• Production Capacity: 50000kg/Month

Product Description

Product Description

 

Introduction

LORK is a special stainless steel manufacturer with 20 years of manufacturing experience.
 

ASTM A312 TP304 is an austenitic alloy grade with excellent corrosion resistance, oxidizing media properties and excellent mechanical properties. A312 TP304 pipe is usually formed from round raw material blanks by push or pull, which is more corrosion resistant than ordinary 304 stainless steel pipe. ASTM A312 Grade TP304 Pipe can be processed by hot rolling or cold rolling process. A312 Gr TP304 Pipes can be produced in seamless, welded and ERW configurations to allow their use in different applications.We can provide you with different sizes to suit your project requirements.

 Stainless Steel TP304 Applications
 

* Various storage containers, pipelines, and device parts in the chemical, petroleum, and other industries;
* Various equipment and containers in the pharmaceutical, food, and other industries;
* Various pressure vessels, boilers, heat exchangers, and other industries;
* Building materials, decorative materials, and other materials.

TP 304 Stainless Steel Pipe Specification:

- Seamless

Size: 6 - 1200 NB

OD: 1/8" - 12" NPS

Thickness : 0.6 - 12.7 mm

Length: Single, Double Random & Cut Length

- ERW/ Welded

Size: 1/8" - 36" NB

OD: 1/4" - 36" / 6.35 - 114.3mm

Thickness : 0.8 - 12.7 mm

Length: up to 26 Meters

 

TP304 Chemical Composition:

Grade	C	Mn	P	S	Si	Ni	Cr	Fe
TP304	0.08	2.00	0.045	0.030	1.0	8-11	18-20	Bal.

 

TP304 Mechanical Properties:

	Tensile Strength(Mpa) Max	Yield Point(Mpa) Max	Elongation(%)	Hardness (HRB) Max
TP304	515	205	35	92

 

TP304 Material Equivalent:

Werkstoff/ DIN	European Standards grades	ASTM grades
1.4301	X5CrNi18-10	A 312 Grade TP304

 

Manufacturing TP304 Seamless Stainless Steel Pipe

Billet

Seamless pipe start from steel billet, billet is semi finished product, it should be inspected prior to processing, choosing superior quality material, and proper billet sizes, common sizes range from 50 - 280, special size for special seamless pipe size can be offered.

Cold Rolling, Cold Drawing

To achieve precise seamless pipe, cold rolling and cold drawing process reduce outside diameter and wall thickness, gradually form required seamless pipe.

Heat Treatment

All the seamless pipes should be heat treated under required temperature, after cold worked, residual stress have been caused, and potential impurities may be occur, heat treatment rebuild alloy structure, then obtain original properties. TP304 stainless steel minimum annealing temperature should be 1040 degree C.

Quality Control

Tolerance: ASTM A312 specification specified outside diameter and wall thickness limitations, OD tolerance conform to ASTM A999.

OD	Tolerance	WTH(Mm)
10.3-48.3	+0.40/-0.80	+/-12.5%t
>48.3-114.3	+0.80/-0.08
>114.3-219.1	+1.60/-0.80
>219.1-457.2	+2.40-0.80
>457.2-660.4	+3.20/-0.80
>660.4-864	+4.00/-0.08
>864-1219.2	+4.80/-0.08

Standard Testing And Inspection

• Visual inspection
• Mechanical Tests
• Hydrostatic test
• Flattening Test
• PMI
• Grain Size

Surface Treatment

 

 

Detection

 

Processing

 

Packaging & Shipping

Company Profile

FAQ

Q1: Do you accept the trial order ?
A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .

Q2: Can I have free sample before making orders?

A2: Yes,we can supply free sample as requirement,but buyer needs to pay the freight charges ,the freight fee will return to buyer after making order.

Q3: How do you control the quality ?
A3: MTC and PMI will be sent before shipment,any 3rd party inspection if need .

Q4: How about your delivery time ?
A4: Generally delivery time is 15 working days .

Q5: How can I quickly get the price list ?
A5: Directly click "chat now" or send us email with detail specifications,you will get the official price list in 1 hour .