A709-50t-2 steel plate is used for the construction of railway and highway bridges. It is required to have high strength and sufficient toughness, low notch sensitivity, good low-temperature toughness, aging sensitivity, fatigue resistance and welding performance. The main steel used is q345q, q370q, q420q and other low-alloy high-strength steel.
Mechanical performance index (%):
Brand wall thickness mm elongation δ 5 ≥ (%) yield strength δ S (MPA ≥) test temperature ºC
Q345A ≤ 16 21345 not required
Q345B ≤16 21 345 20
Q345C 16-35 22 ≥325 0
Chemical composition:
Brand C Si Mn P S V NB Al Ti
Q345A ≤0.20 ≤0.55 ≤1.70 ≤0.045 ≤0.045 0.02-0.15 0.015-0.060 0.02-0.20
Q345B ≤0.20 ≤0.55 ≤1.70 ≤0.040 ≤0.040 0.02-0.15 0.015-0.060 0.02-0.20
Q345C ≤0.20 ≤0.55 ≤1.70 ≤0.035 ≤0.035 0.02-0.15 0.015-0.060 ≥0.015 0.02-0.20
Why Choose us:
What you could get from CHENGDA if we work together?
1. Quality:
We are professional symbol of Chinese Metal industry; so all the supplied metal products from CHENGDA are quality researched & guaranteed well ones. Quality is our life. No quality, no biz.
2. Price:
Based on mature and rich acknowledge & experience for stainless steel and alloy steel , CHENGDAMETAL's supplied price could ensure customer has unique competitiveness in the market. As our aim is long-term biz instead of only profit by 1 or 2 order, we understand only customer win, we could win.
3. Delivery:
CHENGDA is one of TOP 10 manufacturer of stainless steel and alloy products in China, Hold 10000tons raw materials in stock,has its own rolling factory,So enjoy high priority for delivery: Usually within 10-15 from deposit date.
4. Payment:
CHENGDA supply 30% TT IN ADVANCE + 70% TT WITHIN 7 DAYS OF BL DATE or IRR L/C AT SIGHT for customers. And with cooperation's growing & mature, better & better payment term will be issued, such as: L/C 30 DAYS, L/C 60 DAYS, L/C 360 DAYS, etc.
From CHENGDA, what customer could get is not only product, but also complete comprehensive marketting concept & service.
Q1. What are your company's main products ?
A1: Our main products are stainless steel/alloy steel/nickel steel plate/sheet, coil, round/square pipe, bar, channel,Wire,Wire rod and etc.
Q2. How do you control quality ?
A2: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS Verified.
Q3: What is the terms of packing?
A3: generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers requirement.
Q4:What is your delivery time?
A4: For stocks, we could transport the goods to loading port within 7 days after we received your deposit
For production period, it usually takes about 15 days-30 days after receiving the deposit.
Q5. What are the advantages of your company ?
A5: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.
Q6. How many coutries you already exported ?
A6: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India,Philippines, Switzerland, South Korea, Vietnam etc.
Q7. Can you provide sample ?
A7: We can provide the samll samples in stock for free, as long as you contact us.
Customized samples will take about 5-7days.