astm a193 grade b7 qt steel round bar
Model No.: astm a193 grade b7
Type: Alloy Steel Bar
Steel Grade: Other
Technique: Hot Rolled
Application: Structural Steel Bar
Surface Treatment: Other
Special Use: Cold Heading Steel
STEEL GRADE: Astm A193 Grade B7
Packaging: Anti-rusty standard seaworthy
Productivity: 3000 tons per month
Brand: LE REN
Place of Origin: Shandong Provnce, China
Supply Ability: 3000 tons per month
Certificate: ISO 9001
HS Code: 7228309000
Port: Qingdao Port
Alloy steel astm a193 grade b7 / aisi 4140 / sae 4140 / 42CrMo4 material is considered as the most suitable for botls and nuts to be used at temperature below 450 degree C, with a minimum effect on its structural strength during application at a high temperature.
Advantages of astmastm a193 grade b7 / aisi 4140 / sae 4140 / 42CrMo4 qt steel round bar for gr 10.9 bolts we supply:
1): Smooth surface: Smooth surface without any cracks or scales
2): Good straightness: 1mm for hot rolled + QT bars and 0.5mm for cold drawn +QT bars
3): Uniform microstructure and mechanical properties
4): Anti-rusty packages: two layers packages and load in cntainer in our factory in case rusty and package damage.
5): Fast delivery time: Within two weeks if there is stock, within one month to customize.
Detailed astm a193 grade b7 / aisi 4140 / sae 4140 / 42CrMo4 steel specification:
1. astm a193 grade b7 / aisi 4140 alloy steel chemical composition:
2. astm a193 b7 / aisi 4140 alloy steel mechanical property:
|Minimum temperature||Tensile strength||Yield strength||Elongation||Reduction of area||Hardness|
|Below 65mm||593 ° C||860||720||16||50||35 HRC|
|65mm to 100mm||593 ° C||795||655||16||50||35 HRC|
|100mm to 160mm||593 ° C||690||510||18||50||29 HRC|
5. Production line:
6. Production Facilities:
Q1. Are you a manufactuer?
A1:Yes, we have our own factory and labatory to produce and inspect products.
Q2. How to ensure that every process's quality?
A2:Every process will be checked by our quality inspection department which insures every product's quality. we will personally go to tIn the production of products,he factory to check the quality of products.
Q3.How long is your delivery time?
A3:Our delivery time is generally 30 to 45 days. Or according to the quantity.
Q4. What is your payment method?
A4:30% value of T/T in advance and other 70% balance on B/L copy.
Q5.Can you provide a sample?
A5:Sure, Our sample is provided free of charge, but not including courier fees.