Shandong Kuaima  Steel Co., Ltd.

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Large Diameter 600mm Stainless Steel Pipe Dealer

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Product introduction

Product characteristics

Product introduction

Large diameter precision stainless steel tubing is generally used for fluid transfer, in addition to the requirement for a smooth inner wall, a bright solution and pickling passivation are required to improve the corrosion resistance of the tubing, mostly used for industrial pipelines, nuclear energy, power and sewage treatment equipment.

How do you measure the hardness of stainless steel tubes?

Stainless steel pipes are generally measured by three hardness indicators: Brinell, Rockwell and Vickers.Among the stainless steel pipe standards, Brinell hardness is the most widely used, and the hardness of the material is often expressed by the indentation diameter, which is both intuitive and convenient. However, it is not suitable for steel pipes of harder or thinner steel.The Rockwell hardness test of stainless steel pipe is the same as the Brinell hardness test, which is an indentation test method. The difference is that it measures the depth of the indentation. Rockwell hardness test is a widely used method, among which HRC is second only to Brinell hardness HB in steel pipe standards. Rockwell hardness can be used to measure metal materials from extremely soft to extremely hard. It makes up for the inadequacy of the Brinell method. It is simpler than the Brinell method. The hardness value can be read directly from the dial of the hardness machine. However, due to its small indentation, the hardness value is not as accurate as the Brinell method.Vickers hardnessVickers hardness test of stainless steel pipe is also an indentation test method, which can be used to determine the hardness of very thin metal materials and surface layers. It has the main advantages of Brinell and Rockwell methods, and overcomes their basic shortcomings, but it is not as simple as the Rockwell method, and the Vickers method is rarely used in steel pipe standards.For annealed stainless steel pipes with an inner diameter of more than 6.0mm and a wall thickness of less than 13mm, the W-B75 Webster hardness tester can be used. For stainless steel pipes with an inner diameter greater than 30mm and a wall thickness greater than 1.2mm, use a Rockwell hardness tester to test HRB and HRC hardness. The inner diameter of the stainless steel tube is greater than 30mm and the wall thickness is less than 1.2mm. The surface Rockwell hardness tester is used to test the HRT or HRN hardness. For stainless steel pipes with an inner diameter of less than 0mm and greater than 4.8mm, use a Rockwell hardness tester for pipes to test HR15T hardness. When the inner diameter of the stainless steel pipe is greater than 26mm, the hardness of the inner wall of the pipe can also be tested with a Rockwell or surface Rockwell hardness tester.


Technical Data Sheet of Stainless Steel Pipe & Tube:

Shape

Square / Rectangular / Round

Standard 

GB,AISI,ASTM,DIN,EN,JIS
ASTM A240/ASME SA-240、ASTM A276、ASTM A182/ASME SA-182、ASTM A312/ASMES A312
ASTM B625/ASME B625、ASTM B673/ASME B673

Available Grades

Stainless steel 301 / 302 / 303 / 304 / 304L / 310S / 316L / 316Ti / 316LN / 317L / 904L / 2205 / 2507 / 321 / 32760 / 253MA / 254SMo / 410 / 420 / 430 / Custom465 / XM-19 / S31803 / S32750 / S32205 / F50 / F60 / F55 / F60 / F61 / F65.
Nitronic 30 / Nitronic 32 / Nitronic 33 / Nitronic 40 / Nitronic 50 / Nitronic 60  etc.

Monel 400 / Monel K-500 

Inconel 600 / Inconel 601 / Inconel 625 / Inconel 617 / Inconel 690 / Inconel 718 / Inconel X-750 / Inconel 713C / Inconel 713LC

Incoloy A-286 / Incoloy 800 / Incoloy 800H / Incoloy 800HT

Incoloy 825 / Incoloy 901 / Incoloy 925 / Incoloy 926

Nimonic 75 / Nimonic 80A / Nimonic 90 / Nimonic 105 / Nimonic C263 / L-605

Hastelloy B / Hastelloy B-2 / Hastelloy B-3 / Hastelloy C / Hastelloy C-276 / Hastelloy C-22

Hastelloy C-4 / Hastelloy C-2000 / Hastelloy G-35 / Hastelloy X / Hastelloy N

PH stainless steel 15-5PH / 17-4PH / 17-7PH 

Out diameter 

Seamless Pipe 6MM - 1174MM or customized

Thickness 

Seamless Pipe 1mm - 80mm or customized

Max Length

Seamless Pipe 12000mm or customized

Finish 

2B, Pickling, Polished, Brushed, Sandblast, BA, EP

Packing 

waterproof polybag, wooden box, end cap, wooden crame/pallet

Inspection 

TUV,SGS,BV,ABS,LR and so on

Application 

Chemical, Pharmaceutical & Bio-Medical, Petrochemical & Refinery, Environmental, Food Processing, Aviation, Chemical Fertilizer, Sewage Disposal, Desalination, Waste Incineration etc. 

Processing Service 

Machining : Turning / Milling / Planing / Drilling / Boring / Grinding / Gear Cutting / CNC Machining  

Deformation processing :  Bending / Cutting / Rolling / Stamping

Welded 

Forged 

Delivery Time

7-40 days

Trade Term

FOB CIF CFR CIP DAP DDP EXW 

Payment

T/T, L/C,D/A,D/P, Western Union,MoneyGram,According to customer requirements payments for offline orders.

Transportation

By air, by sea, by train, by truck

Sample

Free

Warranty

Trade assurance after sales service

product description

Stainless steel pipe is a kind of hollow round steel strip, which is widely used in industrial pipelines and mechanical structural parts of petroleum, chemical, medical, food, light industry, machinery and instrumentation. In addition, it is light in weight when the bending and torsional strengths are the same, so it is also widely used in the manufacture of mechanical parts and engineering structures. It can also be used as furniture and kitchenware.

Labeling method

The American Iron and Steel Institute is using three digits to label the various standard grades of malleable stainless steel ground. Among them.

1.austenitic stainless steel with 200 and 300 series of numbers indicated.

2.ferritic and martensitic stainless steel with 400 series of numbers.

For example, some of the more common austenitic stainless steels are marked with 201, 304, 316, and 310, ferritic stainless steels are marked with 430 and 446, martensitic stainless steels are marked with 410, 420, and 440C, duplex (austenitic-ferritic) stainless steels, precipitation hardening stainless steels, and high alloy with less than 50% iron content Usually a patented name or trademark name is used.

Corrosion resistance

International corrosion resistance of materials according to the annual corrosion rate is divided into three categories, the first category for complete corrosion resistance, the corrosion rate is less than 0.1mm / year, high-quality stainless steel belongs to such materials; the second category for still corrosion resistance, the corrosion rate of 0.1-1.0mm / year, belongs to the general stainless steel; the third category for corrosion resistance, the corrosion rate is greater than 1.0mm per year.

Cold rolled description

Cold rolled: Hot rolled coil is used as raw material, and the oxide skin is removed by pickling. The product is rolled coil. The cold work hardening caused by continuous cold deformation makes the strength, hardness and toughness and plasticity of rolled coil increase, so the stamping performance will deteriorate and can only be used for parts with simple deformation. Rolled coil can be used as raw material for hot galvanizing plant because annealing lines are set up in hot galvanizing units. The weight of rolled coil is generally 6-13.5 tons. The hot rolled pickling coil is rolled continuously at room temperature. The inner diameter is 610 mm.

Cold rolled edge

Stretch good, toughness, but the price is more expensive;

Cold rolling processing surface without oxide skin, good quality;

Cold rolling is generally used in the production of strip, the rolling speed is high;

Cold rolling than the thickness of the high precision. Mechanical properties, surface and so on in the hot rolling;

Cold-rolled steel coil due to a certain degree of work hardening, low toughness, but can achieve better yield ratio, used for cold-formed spring and other parts;

Cold coil yield point closer to the tensile strength, so the use of risk in the process of no predictability, when the load exceeds the allowable load prone to accidents

The surface of the cold rolled steel coil without plating is gray.

Cold rolled steel plate surface smoothness is higher than the hot rolled steel coil.

Production Process

a. Round steel preparation

b.Heating

c. Hot-rolled piercing;

d.Cutting head

e. Pickling

f. Grinding; g. Lubrication

g. Lubrication

h. Cold rolling process

i.Degreasing

j. Solution heat treatment.

K. Straightening

l. Cutting

m. Pickling

n. Finished product inspection.

Chemical properties of commonly used grades of stainless steel materials.

UNS

ASTM

BSEN

JIS

C%

Mn%

P%

S%

Si%

Cr%

Ni%

Mo%

S20100

201

1.4372

SUS201

≤0.15

5.5-7.5

≤0.06

≤0.03

≤1.00

16.0-18.0

3.5-5.5

-

S20200

202

1.4373

SUS202

≤0.15

7.5-10.0

≤0.06

≤0.03

≤1.00

17.0-19.0

4.0-6.0

-

S30100

301

1.4319

SUS301

≤0.15

≤2.00

≤0.045

≤0.03

≤1.00

16.0-18.0

6.0-8.0

-

S30400

304

1.4301

SUS304

≤0.08

≤2.00

≤0.045

≤0.03

≤0.75

18.0-20.0

8.0-10.5

-

S30403

304L

1.4306

SUS304L

≤0.03

≤2.00

≤0.045

≤0.03

≤0.75

18.0-20.0

8.0-12.0

-

S30908

309S

1.4833

SUS309S

≤0.08

≤2.00

≤0.045

≤0.03

≤0.75

22.0-24.0

12.0-15.0

-

S31008

310S

1.4845

SUS310S

≤0.08

≤2.00

≤0.045

≤0.03

≤1.50

24.0-26.0

19.0-22.0

-

S31600

316

1.4401

SUS316

≤0.08

≤2.00

≤0.045

≤0.03

≤0.75

16.0-18.0

10.0-14.0

2.0-3.0

S31603

316L

1.4404

SUS316L

≤0.03

≤2.00

≤0.045

≤0.03

≤0.75

16.0-18.0

10.0-14.0

2.0-3.0

S31703

317

1.4438

SUS317L

≤0.03

≤2.00

≤0.045

≤0.03

≤0.75

18.0-20.0

11.0-15.0

3.0-4.0

S32100

321

1.4541

SUS321

≤0.08

≤2.00

≤0.045

≤0.03

≤0.75

17.0-19.0

9.0-12.0

-

S34700

347

1.4550

SUS347

≤0.08

≤2.00

≤0.045

≤0.03

≤0.75

17.0-19.0

9.0-13.0

-

S40500

405

1.4002

SUS405

≤0.08

≤1.00

≤0.04

≤0.03

≤1.00

11.5-14.5

≤0.60

-

S40900

409

1.4512

SUS409

≤0.08

≤1.00

≤0.045

≤0.03

≤1.00

10.5-11.75

≤0.50

-

S43000

430

1.4016

SUS430

≤0.12

≤1.00

≤0.040

≤0.03

≤0.75

16.0-18.0

≤0.60

-

S43400

434

1.4113

SUS434

≤0.12

≤1.00

≤0.040

≤0.03

≤1.00

16.0-18.0

-

-

S44400

444

1.4521

SUS444L

≤0.025

≤1.00

≤0.045

≤0.03

≤1.00

17.5-19.5

≤1.00

-

S40300

403

-

SUS403

≤0.15

5.5-7.5

≤0.04

≤0.03

≤0.50

11.5-13.0

≤0.60

-

S410000

410

1.40006

SUS410

≤0.15

≤1.00

≤0.035

≤0.03

≤1.00

11.5-13.5

≤0.60

≤1.00

S42000

420

1.4021

SUS420J1

0.16~0.25

≤1.00

≤0.04

≤0.03

≤1.00

12.0-14.0

≤0.75

≤1.00

S440A

440A

1.4028

SUS440A

0.60~0.75

≤1.00

≤0.04

≤0.03

≤1.00

16.0-18.0

-

≤0.75

S32750

SAD2507

1.4410

≤0.03

≤1.2

≤0.035

≤0.02

≤0.80

24.0-26.0

6.0-8.0

3.0-5.0

S31803

SAF2205

1.4462


Material 200 series,300 series,400 series,600 series, etc.
Type Welded,Seamless
Specification 600mm
Section Shape Round,Square,Hexagonal,etc.
Technique Cold Rolled,Hot Rolled,Cold Drawn,etc.
Surface Brushed, Polished, Etched,etc.
Surface Finish 2B,BA,HL,NO.4,8K,Embossed,etc.
Processing Service Bending, Welding, Punching, Cutting, Moulding
Minimum Order Quantity Negotiable

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