More Information

Carbon Flat Mild Steel Bar

Mild Steel Flat Bars are stocked at all depots with sizes ranging from 13mm wide up to 400mm and 3mm thick to 25mm. Standard stock lengths are 6000mm or these can be cut to your required length.

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Purchasing Information

Product Name

Carbon Steel Flat Bar

Standard

ASTM, DIN, JIS, EN, AISI, BS, GB

Grade Group

SS400, Q195, Q235, Q235b, Q345, Q345b, Q355, S235JR, S275JR, S355JR, ss400, s45c, A36, 1045, 1080, 1084, 1095, etc.

Thickness

4-12mm or as your request

Section Shape

flat bar

Technique

Hot Rolled/cold drawn

Suface Treatment

Black Painted / Oiled /Galvanized

Width

8-140 mm

Length

1-12m or as your request

MOQ

1 ton

Supply Ability

5000 tons / month

Lead Time

10-15 working days after the receipt of 30% deposit

Payment Terms

30%T/T Advance + 70% Balance

Price Terms

FOB, CFR, CIF, EXW

Packing

Standard sea-worthy package or as required

*If you do not find what you are looking for, please call us now. If you have found it, we are happy to answer any questions or concerns you may have about flat bar grades and assist you through the purchasing process.

Industry&Application

Mild Steel Flat Bars are stocked at all depots with sizes ranging from 13mm wide up to 400mm and 3mm thick to 25mm. Standard stock lengths are 6000mm or these can be cut to your required length.

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Characteristic

Properties:
 

Chemical properties of carbon steel flat bar

Grade

C

Si

Mn

P

S

Cr

Ni

Cu

N

Q195

≤0.12

≤0.30

≤0.50

≤0.035

≤0.040

 

 

 

 

Q235B

≤0.20

≤0.35

≤1.40

≤0.045

≤0.045

 

 

 

 

Q275

≤0.24

≤0.35

≤1.50

≤0.045

≤0.050

 

 

 

 

Q345B

≤0.24

≤0.55

≤1.60

≤0.035

≤0.035

≤0.30

≤0.30

≤0.40

≤0.012

 

Mechancal properties of carbon steel flat bar(1)

Grade

Yield Strength

ReH/(N/mm2)

not less than

Tensile Strength

Rm/(N/mm2)

Thickness/mm

≤16

＞16~40

＞40~60

＞60~100

＞100~150

＞150~200

Q195

195

185

-

-

-

-

315~430

Q235B

235

225

215

215

195

185

370~500

Q275

275

265

255

245

225

215

410~540

Q345B

355

345

-

-

295

285

≤100mm：470~630

 

Mechancal properties of carbon steel flat bar(2)

Grade

Elongation after break

A/%

not less than

Impact test (V-notch)

Thickness/mm

Temperature/℃

Impact absorption energy (longitudinal)/J
not less than

≤40

＞40~60

＞60~100

＞100~150

＞150~200

Q195

33

-

-

-

-

-

-

Q235B

26

25

24

22

21

+20

27

Q275

22

21

20

18

17

+20

27

Q345B

22

21

20

18

17

+20

34


Application:

 

Flat steel is widely used in shipbuilding, machinery manufacturing steel structures, steel gratings, ladders, etc. As a finished material, it can be used for hoop irons, tools and mechanical parts, and used for building structural parts and escalators in construction.
 

FAQ:

 

Q:Can you send samples?

A:Sample can be for free,freight cost collect.

Q:What product information do I need to provide?

A:Steel grade/thickness/width/quantity,these will decide the price.

Q:About product prices?

A:Prices vary from period to period due to cyclical changes in the price of raw materials.

Q:What are the certifications for your products?

A:We have ISO 9001,CE,SGS,BV and other certifications.

Q:How about the delivery time?

A:Regularly the delivery time around 10-15 days,customized one will inform the delivery time ahead.

Q:Does the product have quality inspection before loading?

A:All the products are strictly tested before packaging,also can inspect by third party inspection.

Q:How to pack the products?

A:Standard export package with waterproof film and wooden pallet.It can effectively protect products from corrosion.

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