Q195B Square Hollow Section

Q195 is a carbon structural steel with a yield strength of 195MPA.
Chinese name Q195 attribute carbon structural steel yield strength 195MPA application construction, structure, motorcycle frame, etc. C (carbon)≤0.12Mn(manganese)≤0.50Si(silicon)≤0.30S(sulfur)≤0.040P(phosphorus)≤ 0.035 Deoxidation method F, b, Z tensile strength 315-430 (σb/MPa) advantages High plasticity, toughness and welding performance. We can accept any type of testing, pls contact us if you are interested in Q195B Square or Rectangular hollow sections.

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Q195 is a carbon structural steel with a yield strength of 195MPA.
Chinese name Q195 attribute carbon structural steel yield strength 195MPA application construction, structure, motorcycle frame, etc. C (carbon)≤0.12Mn(manganese)≤0.50Si(silicon)≤0.30S(sulfur)≤0.040P(phosphorus)≤ 0.035 Deoxidation method F, b, Z tensile strength 315-430 (σb/MPa) advantages High plasticity, toughness and welding performance

Q195 is a carbon structural steel. The yield strength is 195MPA. Lower strength than Q235. Used in construction, structure, motorcycle frame, etc. The American ASTM brand is Gr.B (σs185). σs185 is the yield strength of 185MPa.
China GB/T 700: Q195
International standard ISO: HR2(σs195)
Former Soviet Union гOCT: CT1Kп
Japanese JIS: SS330(SS34)(σs205)
German DIN: St33
British BS: 040A10
French NF: A33
The Chinese national standard steel number Q195 means “yield strength σs=195MPa”, which is an experimental value measured on a 16mm steel bar. If the diameter is 16-40mm steel, the yield limit is 185MPa, which is the naming rule adopted by ASTM in the United States.

【Mechanical properties】
q195
q195
Elongation (δ5/%): ≥33 (steel thickness or diameter≦16mm), ≥32 (steel thickness or diameter>16-40mm) [Main Features]
It has high plasticity, toughness and welding performance, good pressure processing performance, but low strength.
【Application examples】
Used to manufacture anchor bolts, ploughshares, chimneys, roof panels, rivets, low-carbon steel wires, thin plates, welded pipes, tie rods, hooks, brackets, welded structures, etc. Rolled sheet and wire rod. Cold and hot rolled steel sheets and galvanized, tinned and plastic composite steel sheets made from the original sheets are widely used in roof panels, decorative panels, general dust removal pipes, packaging containers, iron drums, instrument cases, switch boxes, and protection Covers, train cars, etc. Wire rods are mostly cold drawn into low-carbon steel wire or galvanized into galvanized low-carbon steel wire, which is used for bundling, tensioning and fixing or used as wire mesh, rivets, etc.

Q195 Square Hollow Sections Specifications:

15*15*0.8-1.2

15*30*0.8*1.5

20*20*0.8-3.0

20*40*0.8*3.0

25*25*0.8-3.0

25*50*0.8*3.0

30*30*0.8-4.0

30*50*0.8*3.0

40*40*1.0-5.0

30*60*1.5-3.0

50*50*1.0-6.0

40*80*2.0-5.0

60*60*1.2-6.0

50*70*2.0-6.0

70*70*2.0-6.0

50*100*2.0-6.0

80*80*2.0-8.0

60*80*2.0-6.0

90*90*3.0-10

60*100*2.0-6.0

100*100*2.0-12

60*120*2.0-6.0

120*120*2.0-12

60*160*3.0-6.0

140*140*3.0-12

80*100*3.0-8.0

150*150*3.0-12

80*120*3.0-8.0

160*160*3.0-12

80*160*3.0-8

180*180*5.0-12

80*200*5.0-10

200*200*4.0-16

100*200*4.0-12

250*250*4.0-16

100*300*5.0-12

300*300*6.0-16

150*300*8.0*12

350*350*6.0-16

200*300*5.0-16

400*400*8.0-16

200*400*8.0-16

450*450*8.0-16

300*400*8.0-16

500*500*8.0-16

Mechanical character & Chemical element of normal material:

Material
Chemical
Composition
(%)
Q195 C Mn Si S P
0.06-0.12 0.25-0.50 ≤0.30 ≤0.050 ≤0.045
Tensile strength: 315-430(Mpa)
Yield strength:195(Mpa)
Elongation:33
Q235 C Mn Si S P
0.12-2.0 0.3-0.70 ≤0.30 ≤0.045 ≤0.045
Tensile strength: 375-460(Mpa)
Yield strength:235(Mpa)
Elongation:26
Q345 C Mn Si S P V
≤0.20 ≤1.70 ≤0.55 ≤0.040 ≤0.040 0.02-0.15
Tensile strength: 470-630(Mpa)
Yield strength:345(Mpa)
Elongation:21

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