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{"title":"Factory Supply S235JR S355JR Square Tube with Black Surface Treatment Size 40*40","imgUrl":"https:\/\/img.chinax.com\/nimg\/96\/b7\/b1955810c8622d5473f345668afd-200x200-1\/factory_supply_s235jr_s355jr_square_tube_with_black_surface_treatment_size_40_2a40_500_2a500.jpg","attrs":{"Minimum Order Quantity":"50 Tons","Price":"US $650-1,250 \/ Ton","Section Shape":"Square","Size Range":"40*40 - 500*500"}}
{"title":"S355JR Carbon Steel Seamless Square Tube with Black Surface Treatment in 30*30","imgUrl":"https:\/\/img.chinax.com\/nimg\/d1\/ef\/b47b514f844a1c5f6fd437deec8f-200x200-1\/s355jr_carbon_steel_seamless_square_tube_with_black_surface_treatment_in_30_2a30_500_2a500_sizes.jpg","attrs":{"Minimum Order Quantity":"50 Tons","Price":"US $650-1,250 \/ Ton","Section Shape":"Square","Size Range":"30*30-500*500"}}
{"title":"Black Surface Galvanized Square Steel Tube 30*30-500*500 for Construction and","imgUrl":"https:\/\/img.chinax.com\/nimg\/44\/e5\/70415462ddb53481afb82e500ab1-200x200-1\/black_surface_galvanized_square_steel_tube_30_2a30_500_2a500_for_construction_and_machinery.jpg","attrs":{"Minimum Order Quantity":"50 Tons","Price":"US $651-985 \/ Ton","Section Shape":"Square","Size Range":"30*30-500*500"}}
{"title":"Low Carbon Seamless Square Steel Pipe with Black Surface Treatment and 30*30-500","imgUrl":"https:\/\/img.chinax.com\/nimg\/ca\/5d\/e7e879193fd877bb13615e5373a8-200x200-1\/low_carbon_seamless_square_steel_pipe_with_black_surface_treatment_and_30_2a30_500_2a500_size_range.jpg","attrs":{"Minimum Order Quantity":"50 Tons","Price":"US $652-986 \/ Ton","Surface Treatment":"Black","Section Shape":"Square"}}
{"title":"China Black Surface Treatment Seamless Square Steel Pipe 30*30-500*500 for","imgUrl":"https:\/\/img.chinax.com\/nimg\/3a\/1b\/dd8d4123867ed58b6ca2022440eb-200x200-1\/china_black_surface_treatment_seamless_square_steel_pipe_30_2a30_500_2a500_for_construction_and_machinery.jpg","attrs":{"Minimum Order Quantity":"10 Tons per size","Price":"US $653-987 \/ Ton","Surface Treatment":"Black","Section Shape":"Square"}}
{"title":"Black Surface Treatment Square Steel Tube 10*10 to 400*400 Size Range Factory","imgUrl":"https:\/\/img.chinax.com\/nimg\/13\/74\/feb5c75461aaa1380c96c199cd8c-200x200-1\/black_surface_treatment_square_steel_tube_10_2a10_to_400_2a400_size_range_factory_direct_supply.jpg","attrs":{"Minimum Order Quantity":"10 Tons per size","Price":"US $654-988 \/ Ton","Section Shape":"Square","Size Range":"10*10 to 400*400"}}
AR400 AR500 S355J2 MS Box Bar & Square Pipe 100×100×10mm
High-quality welded square steel pipes manufactured to exacting standards, available in various materials including S275JR and S355J2 steel grades.
Product Specifications
Available Product Types & Dimensions
Product Type
Specification Range
Thickness Range
Length
Round Pipe
OD 310mm - 1000mm
4mm - 30mm
Any length
Square Pipe
10mm×10mm - 1000mm×1000mm
1.2mm - 30.0mm
-
Rectangle Pipe
20mm×40mm - 400mm×700mm
1.2mm - 30.0mm
-
L/T/Z Window Section
28mm/38mm
0.5mm - 1.5mm
-
Product Details
Materials: Q195, Q215, Q235, Q345, and equivalent grades
Surface Treatment: Black or bright finish, painted or oiled
Packing: Export standard packaging (bundles, seaworthy packages, shipped in containers)
Delivery Port: Shanghai, China
Lead Time: Within 30 days after receiving original L/C or deposit
Minimum Order Quantity: 10 tons per size
Production Capacity: 10,000 MT per month
Applications: Widely used in structural applications, motorbike and automobile manufacturing, ornamental uses, medical equipment, sports equipment, and home furniture.
Main Markets: Europe, America, Africa, Southeast Asia
EN 10025 S355 Steel Specifications
S355 steel is a European standard structural steel grade according to EN 10025-2:2004, offering superior properties compared to S235 and S275 steels in 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 Method
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 (≥ N/mm²)
Steel Grade
d ≤ 16mm
16mm < d ≤ 40mm
40mm < d ≤ 63mm
63mm < d ≤ 80mm
80mm < d ≤ 100mm
100mm < d ≤ 150mm
150mm < d ≤ 200mm
200mm < d ≤ 250mm
S355JR
355
345
335
325
315
295
285
275
Tensile Strength (≥ N/mm²)
Steel Grade
d < 3mm
3mm ≤ d ≤ 100mm
100mm < d ≤ 250mm
S355JR
510-680
470-630
450-600
Elongation (≥ %)
Steel Grade
3mm ≤ d ≤ 40mm
40mm < d ≤ 63mm
63mm < d ≤ 100mm
100mm < d ≤ 150mm
150mm < d ≤ 250mm
S355JR
22
21
20
18
17
S355K2
20
19
18
18
17
Product Gallery
We welcome both existing and new customers to contact us for negotiations and further communication regarding your steel pipe requirements.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification:
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...