• SHANDONG TONGMAO SPECIAL STEEL CO., LTD
    Yam
    Thank you very much for your sincere service. The quality of your products has always been very good. We are very relieved and hope to have more cooperation in the future.
  • SHANDONG TONGMAO SPECIAL STEEL CO., LTD
    Khue
    Thank you for your products. Your products are of good quality and considerate service. We are very confident and willing to cooperate with you. We hope there will be opportunities for cooperation with other products in the future.
Contact Person : Anne
Phone Number : +8618963570880
Whatsapp : +8618963570880

Cold Rolled Mild Steel Sheet Plate Q235 Q345

Place of Origin China
Brand Name Tongmao
Certification ISO9001
Model Number Carbon Steel Sheet Plate
Minimum Order Quantity 3 Tons
Price Negotiable
Packaging Details Sea Worth Packaging or Client's Request
Delivery Time 5-15 Working Days
Payment Terms L/C, T/T, Western Union, MoneyGram
Supply Ability 500 Tons - 1 Month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

x
Product Details
Surface Treatment Milling Technique Cold Rolled
Application Ship Plate, Container Plate, Flange Plate Special Use Cutting Tools, Wear Resistant Steel
Model NO. Q345 Thickness 1.5-300mm
High Light

Iron Cold Rolled Steel Plate

,

Q345 Carbon Steel Plate

,

Q235 Cold Rolled Steel Plate

Leave a Message
Product Description

Cold Rolled Mild Steel Sheet Q235 Q 345/Mild Carbon Steel Plate/Iron Cold Rolled Steel Plate


Material Carbon steel
Technology
Hot rolled, Cold Rolled
Surface
Clean, composite plate, galvanized, tinning, color coated
Thickness
Thin Plate: 0.2mm-4mm;
Thick Plate: 4mm-115mm
Tolerance
±0.1mm
Material
(1)Carbon structural steel: Q235, Q255, Q275, SS400, A36, SM400A, St37-2, SA283Gr, S235JR, S235J0, S235J2
(2)10-50#,20Mn,50Mn,1025
(3)Low-alloy high-strength steel plate: Q295, Q345, Q390, Q420, Q460, A572Gr50, A588GrB, SM490, St52-3, S275JR, S355JR, WH60, WH70, A709Gr50, BB41BF, BB503, CoetenB, SHT60, A633D, SM520, SM570, Q550CFC, StE355, StE460, 1E0650, 1E1006, S275J0, S275J2, S275NL, S355J0, S355J2, S355K2, S355NL, WH70Q, WQ590D, Q550D, WQ690, WQ700, A514, A517, S690Q, S690QL, S890Q, S960Q, WQ890, WQ960, WDB620
(4)Alloy structural steel plate: 50Mn2V, 15CrMo, 20Mn2, 40Mn2, 20MnSi, 20CrMo, 30CrMo, 35CrMo, 42CrMo, 20Cr, 40Cr, 10CrMoAL, 20CrMnMo, 12CrMoVNi, 30CrMnSiA
(5)Boiler and pressure vessel plate: AISI4140, SA285Gr, SB410, 410B, KP42, Q245R, Q345R, 16MnDR, SPV355, Q370R, SA515Gr60, SA515Gr70, SA516Gr60, SA516Gr70, P235GH, HII/P265GH, P295GH, P355GH, P355NH, 19Mn6, P355NL1, 19Mn6, 15Mo3, 16Mo3, A537CL1, 09MnNiDR, SA662GrC, 18MnMoNbR, 15MnNiDR, A48CPR, SA515Gr65, SA516Gr65, SA612M, SA537CL2, 07MnNiMoVDR, 07MnCrMoVR,12MnNiVR, WDB620/Q500FC,13MnNiMoR, 20MnMoR, 20MnMo, 20MnMoNi55, SA612, A/SA533, A/SA302, SA299,13MnNiMo54(BHW35, DIWA353), SA203, SB450
(6)Bridge Steel Plate: Q235q,Q345q,Q370q,Q420q,14MnNbq,A709-HPS-485W
Application
(1) bridge steel plate (2) boiler steel plate (3) ship building steel plate (4) armored steel plate (5) automobile steel plate (6) roofing steel plate (7) structural steel plate (8) electrical steel plate (silicon steel sheet) (9) spring steel plate (10) heat-resistant steel plate (11) alloy steel plate
MOQ
1 ton
Payment Terms
T/T, L/C
Delivery Time 7-10days

According to the metallurgical quality of CARBON structural steel Q235 in GB/T 700-2006, it is divided into four grades A, B, C and D, and the chemical composition of each grade steel is

Q235 Grade 4: A, B, C, D (GB/T 700-2006)

Q235A grade C 0.14-0.22% Mn 0.30-0.65% Si ≤0.30% S ≤ 0.050P ≤0.045

Q235B grade C 0.12-0.20% Mn 0.30-0.70%Si ≤ 0.30%S ≤ 0.045p ≤0.045

Q235C grade C ≤0.18% Mn 0.35-0.80% Si ≤0.30% S ≤ 0.040P ≤0.040

Q235D grade C ≤0.17% Mn 0.35-0.80% Si ≤0.30% S ≤ 0.035P ≤0.035

In China, there are many examples of cold working die with low carbon martensite rigid quenching process.

Mo-cr co-osmosis was carried out on the surface of the steel by double-glow ion metallizing technique, followed by supraturated carburizing, quenching and tempering. The thickness of Mo-Cr cap layer was over 100 microns, and the content of Mo and Cr on the surface was up to 20% and 10%, respectively. The carbon content on the supraturated carburizing surface was over 2.0%, and the surface composition was close to that of molybdenum high-speed steel. After quenching and tempering, the surface hardness is up to 1300HV, which exceeds the general metallurgical high speed steel. Wear tests show that the friction coefficient increases with the increase of contact stress, and the average relative wear resistance is 2.2 times that of GCr15 carburized and hardened steel.

1, can be used for all kinds of grinding tool handle and other unimportant grinding tool parts.

2, used to choose GCr15, 9SiCr, T8 and 45 steel, due to the workpiece bite die, stick die phenomenon, forging blank is difficult to rush out of the die, resulting in plastic deformation, bending and fracture punch, short life, every 10 punch about 800~1200 bolts; After the use of Q235 steel punch material, after quenching without tempering direct use, hardness of 36~40HRC, every ten pieces of punch can be more than 2000 pieces of bolt, and the failure form for plastic deformation, to solve the phenomenon of the punch in use, to ensure the operator's personal ety.

Cold Rolled Mild Steel Sheet Plate Q235 Q345 0