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Raian Ionescu

Material quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future

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Phone Number : 18068357371

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ASTM A500 Square Steel Pipe with Black Surface Treatment in 3030-300300 Hollow Section

Minimum Order Quantity	50 Tons
Price	US $685-1,250 / Ton

Product Details

Section Shape	Square	Surface Treatment	Black
Size Range	3030-300300	Round Pipe OD	310mm - 1000mm
Round Pipe Thickness	4mm - 30mm	Square Pipe Size	10mm10mm - 1000mm1000mm
Square Pipe Thickness	1.2mm - 30.0mm	Rectangle Pipe Size	20mm40mm - 400mm700mm
Rectangle Pipe Thickness	1.2mm - 30.0mm	L/T/Z Section Thickness	0.5mm - 1.5mm
Material Grades	Q195, Q215, Q235, Q345	Yield Strength	355 N/mm2 (≤16mm)
Tensile Strength	510-680 N/mm2 (d<3mm)	Elongation	22% (3≤d≤40mm)
Production Capacity	500000kgs
Highlight	ASTM A500 Square Steel Pipe , Black Surface Treatment Hollow Section , 3030-300300 Steel Tube

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Product Description

ASTM A500 Square Pipe, Rectangular Pipe & Hollow Sections

Our square pipe hollow black iron S275JR welded steel pipes are manufactured to the highest standards, offering superior structural integrity and durability for various industrial applications.

Product Specifications

Available Dimensions

Round Pipe: OD 310mm - 1000mm | Thickness: 4mm - 30mm | Any length

Square Pipe: 10mm×10mm - 1000mm×1000mm | Thickness: 1.2mm - 30.0mm

Rectangle Pipe: 20mm×40mm - 400mm×700mm | Thickness: 1.2mm - 30.0mm

L/T/Z Window Section: 28mm/38mm | Thickness: 0.5mm - 1.5mm

Material & Surface Options

Materials: Q195, Q215, Q235, Q345 and equivalent grades

Surface Treatment: Black or bright finish, painted or oiled

Packaging & Delivery

Packing: Export standard packing (bundles, seaworthy package, shipped in container)

Delivery Port: Shanghai, China

Lead Time: Within 30 days after receiving original L/C or deposit

MOQ: 10 Tons per size

Applications

Widely used in structural applications, motorbike and automobile manufacturing, ornamental uses, medical equipment, sports equipment, and home furniture.

Production Capacity: 10,000 MT per month

Main Markets: Europe, America, Africa, Southeast Asia

EN 10025 S355 Steel Properties

S355 steel is a European standard structural steel grade according to EN 10025-2:2004, offering superior mechanical properties compared to S235 and S275 steels in both yield strength and tensile strength.

S355 Steel Grade Designations

S355JR (1.0045): Minimum 27J impact energy at 20°C
S355J0 (1.0553): Minimum 27J impact energy at 0°C
S355J2 (1.0577): Minimum 27J impact energy at -20°C
S355K2 (1.0596): Minimum 40J impact energy at -20°C

Technical Data Sheets

Chemical Composition

Steel Grade	C (%)	Si (%)	Mn (%)	P (%)	S (%)	Cu (%)	N (%)	Deoxidation
S355JR	≤0.24	≤0.55	≤1.60	≤0.035	≤0.035	≤0.55	≤0.012	Rimmed steel not allowed
S355J0	≤0.20	≤0.55	≤1.60	≤0.030	≤0.030	≤0.55	≤0.012	-
S355J2	≤0.20	≤0.55	≤1.60	≤0.025	≤0.025	≤0.55	-	Fully killed
S355K2	≤0.20	≤0.55	≤1.60	≤0.025	≤0.025	≤0.55	-	Fully killed

Mechanical Properties - Yield Strength

Thickness (mm)	S355JR	S355J0	S355J2	S355K2
d ≤ 16	355 N/mm²	355 N/mm²	355 N/mm²	355 N/mm²
16 < d ≤ 40	345 N/mm²	345 N/mm²	345 N/mm²	345 N/mm²
40 < d ≤ 63	335 N/mm²	335 N/mm²	335 N/mm²	335 N/mm²
63 < d ≤ 80	325 N/mm²	325 N/mm²	325 N/mm²	325 N/mm²

Tensile Strength & Elongation

Property	Thickness Range	S355JR	S355J0	S355J2	S355K2
Tensile Strength (N/mm²)	d < 3	510-680	510-680	510-680	510-680
	3 ≤ d ≤ 100	470-630	470-630	470-630	470-630
	100 < d ≤ 250	450-600	450-600	450-600	450-600
Elongation (%)	3 ≤ d ≤ 40	22	22	22	20
	40 < d ≤ 63	21	21	21	19
	63 < d ≤ 100	20	20	20	18