Mirror Finish Polished X2crti24 X5crnimoii15-2 X6crmos17 1.4613 1.4589 1.4105 Welded Square Rectangular Hollow Stainless Steel Tube

• Customization: Available
• Type: Stainless Steel Pipes
• Standard: ASTM, AISI
• Model NO.: X2CrTi24 X5CrNiMoIi15-2 X6CrMoS17 1.4613 1.4589
• Certification: ISO
• Shape: Square
• Technique: Cold Rolled
• Surface Treatment: Polished
• Application: Construction/Indutry/Building/Chemical/Auto
• Processing Service: No.1/2b/Ba/No.4/8K/Sb/Hl/Embosses/Etched/Decorate
• Material: 200 Series/300 Series/400series
• Keyword: Welded Seamless Pipe Tube
• Transport Package: Standard Sea-Worthy Packing
• Specification: as required
• Trademark: bolaisheng
• Origin: China

Product Description

The stainless steel square tube, characterized by its hollow and square cross-section, is an essential component in various applications. Its design makes it perfect for transporting fluids such as oil, natural gas, water, gas, and steam. Furthermore, thanks to its excellent bending and torsional strength combined with lightweight properties, it is extensively utilized in the fabrication of mechanical parts and engineering structures.
Stainless steel square pipes are categorized into seamless and welded types. Depending on their sectional shape, they can be square, rectangular, or round, with some specialized shapes like semicircular, hexagonal, equilateral triangle, and octagonal also available. While round steel pipes are most common, these diverse shapes enable a wide range of applications.
For stainless steel square pipes subjected to fluid pressure, stringent hydraulic tests are essential to ensure pressure resistance and overall quality. Pipes must exhibit no leakage, wetting, or expansion under specified pressures to be deemed qualified. Additional tests such as crimping, flaring, and flattening may also be conducted based on standards or customer requirements.
Square Tube Specifications: Dimensions range from 5*5mm to 150*150mm with thicknesses between 0.4mm and 6.0mm.
Square Pipe Materials: Available in a variety of grades including 304, 304L, TP304, TP316L, 316, 316L, 316Ti, 321, 347H, and 310S.

Product name	X2CrTi24 X5CrNiMoTi 15-2 X6CrMoS17 1.4613 1.4589 1.4105 Stainless Steel Square Tube
Grade	201,202,301,302,302HQ,303,304,304L,304F,309,310,310s,314,314l,316,316L,316Ti,316F,317,317l,321,409L,410,410S,416,420,420J1,420JS,430,430F,431,etc.
Standard	ASTM/ASMES A312 GR. TP304, 304L, 304H, 310S, 310H, 316, 316L, 347, 347H snd etc;ASTM/ASMES A358 CL1&CL3 GR. 304, 304L, 304H, 310S, 310H, 316, 316L, 347, 347H snd etc;Duplex ASTM / ASME SA 790 UNS NO S31803 , S32205 and etc.Inconel ASTM B444 UNS06625 , Incoloy ASTM B423 UNS08825 Hastelloy C276, Monel 400,ASTM B111 C68700, C44300, C70600, C71500,
Outside diameter	6mm-3000mm
W.T.	0.5-100mm
Length	1. Single Random Length and double Random Length.2. SRL: 3M-5.8M   DRL: 10-11.8M or As clients requested length3. Fixed length (5.8m, 6m, 12m)
Pipe Ends	Under 2 inch plain end. 2 inch and above Beveled. Plastic caps (small OD). Iron protector (large OD).
Surface Treatment	black paint, varnish, oil, galvanized, anti-corrosion coated.
Marking	Supply Logo + Standard + Size(mm) + HEAT NO +or as your requirement
Test	Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, hydraulic testing , X-ray Test, HIC & SSC test, etc. or as your requirment
Brand	JIULI, WUJIN, ZHONGDA, GAOLIN, GANGYI, DEWEI, ZHANGYUAN etc or as your requirment
Certificates	API, ISO, SGS, BV, CE, PED, KOC, CCRC, PDO and etc.
Advantages	1. Abundant stock and prompt delivery2. Reasonable for whole packages and processes.3. 15 years' QC team service & sales management API& ASTM trained engineers.4. More than 150 customers spread worldwide. (Petrofac, G.S Engineer, Fluor, Hyundai  Heavy industry, Kuwait National Oil, Petrobras, PDVSA, PetroEcuador, SHELL, etc.)

Chemical Element Content (%)

X2CrTi24 Chemical element content (%)
Element	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	AI	More
Min	-	-	-	-	-	22	-	-	-	-	Nb:[4x(C+N)+0.2]~1.00*
Max	0.03	1	1	0.05	0.05	25	0.5	0.5	0.5	0.5

X2CrTi24 Mechanical properties
Condition	Heat treatment or state	Tensile strength σb Mpa	Yield point σs Mpa	Elongation after fracture or elongation δ %	Hardness HBW
Bars, rods, wires, profiles, bright products; d≤8	+A	430~630	≥250	≥18	≤200
+AT = solution annealing; +A = annealing; +QT = quenching and tempering; +P = precipitation hardening; +C = cold work hardening, +C suffix number represents the tensile strength grade, that is, the minimum tensile strength value long. = longitudinal rolling; tr. = transverse rolling d = diameter or thickness; unit mm Intergranular corrosion resistance: in delivery state Yes; in welding state Yes

X5CrNiMoTi 15-2 Chemical element content (%)
Element	C	Si	Mn	P	S	Cr	Ni	Mo	Ti
Min	-	-	-	-	-	13.5	1	0.2	0.3
Max	0.08	1	1	0.04	0.015	15.5	2.5	1.2	0.5

X5CrNiMoTi 15-2 Physical properties

Static elastic modulus at each temperature °C

Thermal expansion coefficient between 20°C and various temperatures

Thermal conductivity

Specific heat

Resistivity

Magnetism

20°C

100°C

200°C

300°C

400°C

500°C

100°C

200°C

300°C

400°C

500°C

20°C

20°C

20°C

GPa

10-6 K-1

W/m.K

J/kg.K

Ω.mm2/m

220

215

210

205

195

-

10.5

11

11.5

12

12

25

460

0.6

Exist

X6CrMoS17 Chemical element content (%)
Element	C	Si	Mn	P	S	Cr	Mo
Min	-	-	-	-	0.15	16	0.2
Max	0.08	1.5	1.5	0.04	0.35	18	0.6

X6CrMoS17 Physical properties

Static elastic modulus at each temperature °C

Thermal expansion coefficient between 20°C and various temperatures

Thermal conductivity

Specific heat

Resistivity

Magnetism

20°C

100°C

200°C

300°C

400°C

500°C

100°C

200°C

300°C

400°C

500°C

20°C

20°C

20°C

GPa

10-6 K-1

W/m.K

J/kg.K

Ω.mm2/m

220

215

210

205

195

-

10

10.5

10.5

10.5

11

25

460

0.7

Exist

Application Areas

Our Advantages

Qualitative Materials:

We utilize top-tier raw materials to ensure our products deliver unparalleled strength, durability, and longevity.

Advanced Technology:

Our production processes leverage cutting-edge technologies, including advanced smelting, continuous casting, and rolling techniques.

Customized Service:

We provide bespoke design and manufacturing services tailored to meet the unique needs and specifications of our customers.

FAQ

Q1: Why choose your company?

A: With over 16 years of industry expertise and ownership of our factory, we offer unparalleled services supported by a professional and dedicated sales team.

Q2: What are your terms of payment?

A: We require a 30% T/T deposit upfront, with the remaining 70% payable before delivery.

Q3: What are your delivery terms?

A: Our delivery terms include FOB, CFR, CIF, and EXW.

Q4: What is your delivery time?

A: Our standard lead time is between 7 to 15 days after receiving the deposit.

Q5: Can you provide samples?

A: Yes, we offer free samples if they are available in stock. However, transportation costs must be borne by the buyer.

Certification