Wuxi QiuZhi Metal Materials Co., Ltd.
| Payment Terms | L/C,D/P,T/T |
| Delivery Time | negotiate |
| Packaging Details | negotiate |
| Width range | 1000-2500mm(Customizable) |
| Implementation Standard | GB/ASTM/ASME/JIS/GOST |
| Material (steel grade) | S30408,S30403,S30409,304H,304... |
| Supply Ability | negotiate |
| Supply status | coil /sheet/plate /profile /tube /rod |
| Length range | 1500-13000mm(Customizable) |
| Thickness range | 0.3-14mm(Customizable) |
| surface condition | 2B/BA/NO.4/8K/SB/HL/NO.1...(Customizable) |
| Place of Origin | China, South Korea, Japan, the United States, Germany, Sweden |
| Brand Name | TISCO,ZPSS,ATI,HAYNES,VDM,... |
| Model Number | negotiate |
| Certification | ISO,CE,UKCA... |
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Product Specification
| Payment Terms | L/C,D/P,T/T | Delivery Time | negotiate |
| Packaging Details | negotiate | Width range | 1000-2500mm(Customizable) |
| Implementation Standard | GB/ASTM/ASME/JIS/GOST | Material (steel grade) | S30408,S30403,S30409,304H,304... |
| Supply Ability | negotiate | Supply status | coil /sheet/plate /profile /tube /rod |
| Length range | 1500-13000mm(Customizable) | Thickness range | 0.3-14mm(Customizable) |
| surface condition | 2B/BA/NO.4/8K/SB/HL/NO.1...(Customizable) | Place of Origin | China, South Korea, Japan, the United States, Germany, Sweden |
| Brand Name | TISCO,ZPSS,ATI,HAYNES,VDM,... | Model Number | negotiate |
| Certification | ISO,CE,UKCA... |
These are all members of the 304 alloy family, with their core differences lying in carbon content and operating temperature. To summarize in one sentence: 30408 is the standard grade, 30403 is the low-carbon grade (resistant to welding corrosion), and 30409 and 304H are high-temperature grades (with different heat resistance strengths). They comply with the Chinese standard GB/T 24511 (or ASTM standards). A comparison of their specific properties and applications is as follows: • 30408 (06Cr19Ni10 / standard 304): Carbon content ≤ 0.08%, with the strongest versatility. It offers balanced corrosion resistance and processability but lacks high-temperature strength; long-term service is recommended below 400℃. Widely used in food equipment, atmospheric pressure vessels, architectural decoration, and other general applications. • 30403 (022Cr19Ni10 / 304L): Carbon content ≤ 0.030%, requiring no post-weld heat treatment and providing the strongest resistance to intergranular corrosion. However, its strength is slightly lower than that of 30408. Specially designed for welded components, thin-walled storage tanks, chemical pipelines, and other equipment sensitive to welding corrosion. • 30409 (06Cr19Ni10 / 304H): Carbon content 0.04%~0.10% (higher than standard 304), with higher high-temperature creep strength than 30408 and an operating temperature up to 800℃. Mainly used for high-temperature pressure-bearing components such as boiler superheaters and heat exchanger tubes. • 304H (S30409 / ASTM high-carbon grade): Basically equivalent to 30409 (under ASTM standards), emphasizing higher high-temperature yield strength and outperforming 30409 in the 500~800℃ temperature range. Its application scenarios overlap with those of 30409, but it is commonly used for export equipment or designs following American standards.
Company Details
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
65000000 Dollars-85000000 Dollars
Employee Number:
50~70
Ecer Certification：
Verified Supplier
QiuZhi Metal is an integrated company specializing in both the wholesale and processing of stainless steel materials. We serve as the authorized distributors in China for renowned domestic and international steel mills, including TISCO, Zhangjiabu (ZPSS), JISCO, Xi'an Huaxin, Taishan Steel, Dong... QiuZhi Metal is an integrated company specializing in both the wholesale and processing of stainless steel materials. We serve as the authorized distributors in China for renowned domestic and international steel mills, including TISCO, Zhangjiabu (ZPSS), JISCO, Xi'an Huaxin, Taishan Steel, Dong...
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