Product Introduction - HH - H10Mn2 Submerged Arc Welding Wire
1. Product Name and Type
Product Name: HH - H10Mn2 Submerged Arc Welding Wire
Standard: Complies with GB/T 5293, model SU34
2. Applications
It is used for submerged arc automatic welding of carbon steel and low - alloy steel with corresponding strength levels, such as in shipbuilding, petrochemical, and boiler industries.
3. Features
HH - H10Mn2 is a copper - plated copper alloy submerged arc welding wire. When used with SJ101 flux, it exhibits excellent welding process performance. The weld bead formation is beautiful, slag removal is easy, and it has good low - temperature impact toughness.
4. Chemical Composition of Welding Wire (Mass Fraction)
Item |
C |
Mn |
Si |
S |
P |
Cr |
Ni |
Cu |
Standard Value |
≤0.12 |
1.50 - 1.90 |
≤0.07 |
≤0.030 |
≤0.030 |
≤0.20 |
≤0.30 |
≤0.35 |
Example Value |
0.11 |
1.65 |
0.05 |
0.017 |
0.022 |
0.022 |
0.02 |
0.116 |
5. Mechanical Properties of Deposited Metal
Item |
Tensile Strength Rm/MPa |
Yield Strength ReL/Rp0.2MPa |
Elongation A% |
Standard Value |
490 - 670 |
≥390 |
≥18 |
Example Value |
564 |
459 |
29 |
6. Notes
- The flux should be baked at 250 - 400°C for 1 - 2 hours. The welding wire should be dry, oil - free, and rust - free before use.
- Before welding, remove impurities such as rust, oil, and moisture from the weldment.
- The sulfur content of the flux should be ≤0.050% and the phosphorus content should be ≤0.060%.


Honglu company focuses on steel structure manufacturing, with a total of more than 20,000 registered front-line technicians, ranking second among the Top 100 comprehensive private manufacturing enterprises in Anhui Province in 2023; It ranks18th among the Top 100 private enterprises in Anhui Province in terms of revenue; Our company's building steel structure products have been recognized as a Single Champion in manufacturing industry.
Honglu company is one of the first batch of national prefabricated housing bases in China, and Honglu has participated in the compilation of China's first prefabricated steel structure housing standard.
The steel structure industry to which we belong is a green and low-carbon industry actively encouraged by the state, and is the backbone of the reform of the construction industry. The company will continue to improve the R&D, procurement, manufacturing of all aspects of informatization,
intelligent construction, and strive to become China's largest high-quality steel structure manufacturing R & D base with the leading technology, the best quality, the most satisfied customer.
In 2023, the output of steel structure products is about 4.488 million tons, and the output of steel structure products in 2024 is about 4.488 million tons.
Hefei Shuangfeng |
factory area 600,000 sq.m. |
Hefei Xiatang |
factory area 350,000 sq.m.
Galvanizing plant with an annual output of 350,000 tons (28,800 sq.m.) |
Xuancheng |
building area of the plant 150,000 sq.m. |
Jinzhai |
building area of the plant 300,000 sq.m. |
Bengbu |
building area of the plant 75,000 sq. m. |
Guoyang |
building area of the plant 1.75 million sq.m. |
Yingshang |
plant area 500,000 sq.m. |
Chongqing |
building area of the plant 700,000 sq.m. |
















Are you a trading company or a manufacturer?
We are a group company and factory focusing on steel structure manufacturing. As a leading steel structure enterprise in China, we operate large-scale manufacturing bases in Hefei, Wuhan, Jinzhai, Chongqing, and Guoyang, covering an area of more than 5 million square meters.
What are your main products and annual production capacity?
Our main products include steel structures, steel cladding and enclosure systems, welding wires, and intelligent welding robots, with an annual production capacity of over 6 million tons of steel structures.
Can you provide design services?
Yes, we also offer comprehensive design services tailored to your unique needs.
What are the payment terms?
a) 30% T/T deposit in advance, with the balance paid before shipment or against the BL copy.
b) 100% L/C at sight is also available for your convenience.
What is the lead time?
The delivery time depends on the order quantity. Generally, it takes around one month after receiving the deposit.