Product Description
Quality Approvals
Our Quality Management System has been certified as per
ISO9001:2015 . The production and testing facilities have been
approved by various certification bodies. All production processes
andinspection are strictly controlled according to the requirements
of ISO9001:2015 and other certification bodies.
Inspections & Tests
All materials will be tested by destructive and non-destructive
testing before delivery, the following testing are available in
BOLAI Company:
★ Non-destructive tests: Eddy current test, Ultrasonic test,
Hydrostatic test, Dimension examination, Surface examination,
Hardness test
★ Destructive tests: Metallographic examination, Intergranular
corrosion test, Mechanical property tests, Tension test, Flattening
test, Flaring test, Bending test, Impact test
General character:
★ Various usage
★ Good corrosion resistance, durable using
★ Good oxidation resistance in different environment
★ High strength and high temperature resistance
★ Clean, smooth ,mirror surface
Chemical Composition(%) :
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Cu |
| 304 | ≤0.07 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 18.00~20.00 | 8.00~10.50 | | |
| 304L | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 18.00~20.00 | 9.00~13.00 | | |
| 310S | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 24.00~26.00 | 19.00~22.00 | | |
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 16.00~18.00 | 10.00~14.00 | 2.00~3.00 | |
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 16.00~18.00 | 12.00~15.00 | 2.00~3.00 | |
| 321 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 17.00~19.00 | 9.00~13.00 | | |
| 430 | ≤0.12 | ≤0.75 | ≤1.00 | ≤0.040 | ≤0.03 | 16.00~18.00 | | | |
| 2205 | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.030 | ≤0.015 | 22.00~23.00 | 4.5~6.5 2.5~3.5 | | |
| 2507 | ≤0.03 | ≤0.08 | ≤1.20 | ≤0.035 | ≤0.015 | 24.00~26.00 | 6.00~8.00 | 3.0~5.0 | |
| 904L | ≤0.02 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.035 | 19.00~23.00 | 23.00~28.00 | 4.0~5.0 | 1.0-2.0 |
RFQ
Q1: Are you manufacturer ?
A1: We are manufacturer and trader , we build a new trade company
to develop our business
Q2: How about the quality ?
A2: We have good processing equipment to weld the steel pipes .
We have good matrial suppliers to keep the good quality of steel .
We have our own lab to test finished steel tubes .
Welcome our customer to test by yourselves .
Q3: How about the delivery time ?
A3: If we have stock, in 7 days . If we dont have stock, 15-20 days
/20 tons .
Q4: How about the payment ?
A4: T/T,L/C. Based on your orders .
Q5:How about the samples ?
A5:We supply samples , but we would supply the stock to test . If
you want customized samples, we would charge some fee . But the
customers pay the transport fee .
Q6:How to cooperate ?
A6: We can supply to your processing directly for manufactuing
companies .
If you are traders, also welcome , we want to build a strong bridge
between you and us , so if you have a good idea , we can support
you !
