A554 TP304 Welded EFW ERW Square Pipe
ASTM A554 Gr 316L Stainless Steel Square Hollow Sections Specification
Specifications : ASTM A554 / ASME SA554(Ornamental Tubing Specification) or ASTM A 312
Size : 20x20mm to 400x400mm, other non standard sizes available on request
Wall Thickness : 0.5mm to 6mm
Length : Up to 6 meters, custom cut lengths
Type : Seamless/ Welded / ERW
Finish : 2B, No.1 Pickled Finish, No.4 finish, BA Finish, No.8 Mirror Finish, Electropolished Square Pipes
Delivery Condition : Bright Annealed, Polished or Annealed and Pickled
Packing : In bundles, coating, Ends can be bevelled or square cut, End Capped Certification & supplementary test, Finishing & Identity Mark
Equivalent Grades
| STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
BS |
GOST |
AFNOR |
EN |
| SS 316L |
1.4404 / 1.4435 |
S31603 |
SUS 316L |
316S11 / 316S13 |
03Ch17N14M3 / 03Ch17N14M2 |
Z3CND17‐11‐02 / Z3CND18‐14‐03 |
X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
Chemical Composition
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
Fe |
| SS 316L |
0.035 max |
2.0 max |
1.0 max |
0.045 max |
0.030 max |
16.00 - 18.00 |
2.00 - 3.00 |
10.00 - 14.00 |
68.89 min |
Mechanical Properties
| Density |
Melting Point |
Tensile Strength |
Yield Strength (0.2%Offset) |
Elongation |
| 8.0 g/cm3 |
1399 °C (2550 °F) |
Psi - 75000 , MPa - 515 |
Psi - 30000 , MPa - 205 |
35 % |
Available Sizes
| Size mm |
kg/m |
Size mm |
kg/m |
| 20 x 20 x 2.0 |
1.12 |
20 x 20 x 2.5 |
1.35 |
| 25 x 25 x 1.5 |
1.06 |
25 x 25 x 2.0 |
1.43 |
| 25 X 25 X 2.5 |
1.74 |
25 X 25 X 3.0 |
2.04 |
| 30 X 30 X 2.0 |
1.68 |
30 X 30 X 2.5 |
2.14 |
| 30 X 30 X 3.0 |
2.51 |
40 x 40 x 1.5 |
1.81 |
| 40 x 40 x 2.0 |
2.31 |
40 x 40 x 2.5 |
2.92 |
| 40 x 40 x 3.0 |
3.45 |
40 x 40 x 4.0 |
4.46 |
| 40 x 40 x 5.0 |
5.40 |
50 x 50 x 1.5 |
2.28 |
| 50 x 50 x 2.0 |
2.93 |
50 x 50 x 2.5 |
3.71 |
| 50 x 50 x 3.0 |
4.39 |
50 x 50 x 4.0 |
5.72 |
| 50 x 50 x 5.0 |
6.97 |
60 x 60 x 3.0 |
5.34 |
| 60 x 60 x 4.0 |
6.97 |
60 x 60 x 5.0 |
8.54 |
| 60 x 60 x 6.0 |
9.45 |
70 x 70 x 3.0 |
6.28 |
| 70 x 70 x 3.6 |
7.46 |
70 x 70 x 5.0 |
10.11 |
| 70 x 70 x 6.3 |
12.50 |
70 x 70 x 8 |
15.30 |
| 75 x 75 x 3.0 |
7.07 |
80 x 80 x 3.0 |
7.22 |
| 80 x 80 x 3.6 |
8.59 |
80 x 80 x 5.0 |
11.70 |
| 80 x 80 x 6.0 |
13.90 |
90 x 90 x 3.0 |
8.01 |
| 90 x 90 x 3.6 |
9.72 |
90 x 90 x 5.0 |
13.30 |
| 90 x 90 x 6.0 |
15.76 |
90 x 90 x 8.0 |
20.40 |
| 100 x 100 x 3.0 |
8.96 |
100 x 100 x 4.0 |
12.00 |
| 100 x 100 x 5.0 |
14.80 |
100 x 100 x 5.0 |
14.80 |
| 100 x 100 x 6.0 |
16.19 |
100 x 100 x 8.0 |
22.90 |
| 100 x 100 x 10 |
27.90 |
120 x 120 x 5 |
18.00 |
| 120 x 120 x 6.0 |
21.30 |
120 X 120 X 6.3 |
22.30 |
| 120 x 120 x 8.0 |
27.90 |
120 x 120 x 10 |
34.20 |
| 120 X 120 X 12 |
35.8 |
120 X 120 X 12.5 |
41.60 |
| 140 X 140 X 5.0 |
21.10 |
140 X 140 X 6.3 |
26.30 |
| 140 X 140 X 8 |
32.90 |
140 X 140 X 10 |
40.40 |
| 140 X 140 X 12.5 |
49.50 |
150 X 150 X 5.0 |
22.70 |
| 150 X 150 X 6.3 |
28.30 |
150 X 150 X 8.0 |
35.40 |
| 150 X 150 X 10 |
43.60 |
150 X 150 X 12.5 |
53.40 |
| 150 X 150 X 16 |
66.40 |
150 X 150 X 16 |
66.40 |
| 180 X 180 X 5 |
27.40 |
180 X 180 X 6.3 |
34.20 |
| 180 X 180 X 8 |
43.00 |
180 X 180 X 10 |
53.00 |
| 180 X 180 X 12.5 |
65.20 |
180 X 180 X 16 |
81.40 |
| 200 X 200 X 5 |
30.50 |
200 X 200 X 6 |
35.8 |
| 200 x 200 x 6.3 |
38.2 |
200 x 200 x 8 |
48.00 |
| 200 x 200 x 10 |
59.30 |
200 x 200 x 12.5 |
73.00 |
| 200 x 200 x 16 |
91.50 |
250 x 250 x 6.3 |
48.10 |
| 250 x 250 x 8 |
60.50 |
250 x 250 x 10 |
75.00 |
| 250 x 250 x 12.5 |
92.60 |
250 x 250 x 16 |
117.00 |
| 300 x 300 x 6.3 |
57.90 |
300 x 300 x 8 |
73.10 |
| 300 x 300 x 10 |
57.90 |
300 x 300 x 8 |
90.70 |
| 300 x 300 x 12.5 |
112.00 |
300 x 300 x 16 |
142.00 |
| 350 x 350 x 8 |
85.70 |
350 x 350 x 10 |
106.00 |
| 350 x 350 x 12.5 |
132.00 |
350 x 350 x 16 |
167.00 |
| 400 x 400 x 10 |
122.00 |
400 x 400 x 12 |
141.00 |
| 400 x 400 x 12.5mm |
152.00 |
400 x 400 x 16 |
192 |
Company Profile
From 1989 to now, Kingmetal Steel focus on manufacturing and distributing pipeline products including piping, fitting, flange, valve and fastener in stainless, carbon, alloy and duplex steel.
Kingmetal has a factory to manufacture seamless stainless steel pipe from DN6 to DN600 and distribute seamless steel pipe and fitting from top brand manufacturers such as Baosteel, Hengsteel, Tiansteel and Pansteel etc.
All of products are strictly compliance with standard, 100% inspection passed including visual, dimension and PMI test before shipment.
Both our sales and logistic teams are over 10 years of experiences and training frequently.
After- sales service with high efficiency, if any products are short quantity/weight or damaged caused by manufacturing, design or transportation can be compensated.
Why choose us?
One-Stop Solution
We have thousands of total production experience, from raw materials to finished products.
Competitive Price
Large scale purchase, standardized production process and efficient management make our price competitive.
Quick Shipping
Years of export experience enable us to control the transportation time more accurately.
Quality Control
The standardized production process, comprehensive management system, professional testing equipment
Special material customization
We support the customization of various complex materials
OEM/ODM
We support any form of OEM/ODM customization requirements.
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