Q355b Q345b Hot Rolled Steel Square Bar

• Standard: AISI, JIS, ASTM, DIN, BS, GB
• Certification: ABS, RoHS
• Technique: Hot Rolled
• Wall Thickness: Thick
• Surface Treatment: Black
• Alloy: Non-alloy
• Model NO.: Q355B Q345B Hot Rolled Steel Square Bar
• Products: Hot Rolled Steel Square Bar
• Sizes: 20X20-150X150
• Length: 2-6m or as Required
• MOQ: 3tons
• Main Grade: Ss400 A36 1020 1045 4140 40cr
• Transport Package: Bundle Packing
• Specification: 5*5mm-80*80mm
• Origin: China
• Production Capacity: 3000tons/Month

Product Description

Q355B Q345B Hot Rolled Steel Square Bar
Hot rolled square bars are produced by hot rolling continuous casting billets. 
Usually, they have a square cross- section with sharp and round edges and are intended either to be further machined or cold drawn and so on.

1.Hot rolled steel square bar Sizes we can offer:

Products	Sizes
Hot Rolled Square Steel Bar	20X20-150X150
Hot Rolled Rectangle Steel Bar	6*40mm to 20*160mm

2)Length:5-6m fixed length or as required
3)R corner: Sharp or round corners as per requirements 
4)Straightness: max 3mm/m

2.Application of the hot rolled steel square bar
1): Can be used in many fields such as building, automobile, shipbuilding, petrochemical, machinery, medicine, food, electric power, energy, space, building and decoration, etc.
2): Can be made into mould template, mortise pin, column
3): This kind of steel have good mechanical property, is widely used in structural parts which may support stress alternation, especially made into some connecting rods, bolts, wheel gear...
4): This kind of steel is the most common blanks and materials of shaft parts.

3.Packing :
1): Paint oil on the surface to protect steel bars from rusting.
2): Bundle packing by Iron Strips.
3): Bundle weight is from 2mt to 3 mt.
4): Two or three tags will be attached on each bundle. 

4.Q355B Q345B Hot Rolled Steel Square Bar chemical composition

Grdae	C	Si	Mn	S	P	Cr
Q355B/S355JR	≤0.2	0.15-0.35	≤1.7	≤0.035	≤0.035	≤0.30

5.Mechanical property of Q355B Q345B Hot Rolled Steel Square Bar

Grdae	Tensile Strength		Yield Strength		Elongation
Q355B/S355JR	470 - 630Mpa		≥345Mpa		≥17%

6.Payment terms: T/T or L/ C

(1)30% paid by T/T and rest 70% by T/T upon the copy of B/B.
(2)100% irrevocable L/C at sight

7.MOQ:3tons
8.Delivery time:7-30 days upon to the order details
9.Trade term: FOB CFR CIF EXW and so on
10.. Mark: including steel material, heat No., pieces, weight, date and so on.

11.Other main grade we can supply for hot rolled steel square bars:
A36,1008,1010, 1020/S20C, 1045/S45C, S235JR/Q235,ST52 /S355JR/Q345,Alloy steel: 5120,5140/40Cr, 4120, 4130, 4135, 4140/EN19/42CrMoA, 4145, 4150, 8620 etc. Bearing steel: 52100/GCr15 etc.