Gnee Steel (tianjin) Co., Ltd.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 5000 Tons per Month |
| Delivery Time | 7–15 Working Days |
| Packaging Details | Standard Export Seaworthy Packing (bundled with steel strips, anti-rust paper, on wooden/steel pallets) |
| Brand Name | GNEE |
| Model Number | ASME SA553 Type 1 |
| Certification | SGS |
| Place of Origin | tianjin |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union | Supply Ability | 5000 Tons per Month |
| Delivery Time | 7–15 Working Days | Packaging Details | Standard Export Seaworthy Packing (bundled with steel strips, anti-rust paper, on wooden/steel pallets) |
| Brand Name | GNEE | Model Number | ASME SA553 Type 1 |
| Certification | SGS | Place of Origin | tianjin |
ASTM A553 Type 1 is a high-nickel alloy steel plate specification issued by ASTM International (formerly the American Society for Testing and Materials). The material is colloquially called "9% nickel steel" because its nickel content ranges from 8.50% to 9.50% by weight.
The steel combines high tensile strength (690-825 MPa) with exceptional low-temperature toughness, making it one of the most widely specified materials for cryogenic pressure vessels operating at temperatures down to −196 °C (−320 °F).
Your selection path can ultimately be summarized as: Choose ASTM A553 Type 1 when your project does not need ASME Code stamping but still demands full cryogenic performance - the material is identical to SA553.
ASME SA553 Type 1 is the same 9% nickel alloy steel - identical in chemical composition, mechanical properties, and heat treatment requirements to ASTM A553 Type 1. The key difference is the standard-issuing body: ASME (the American Society of Mechanical Engineers) adopts ASTM material specifications into its Boiler & Pressure Vessel Code (BPVC) by adding an "S" prefix.
| Claim | Reality |
|---|---|
| "SA553 is a higher grade." | False. The chemical and mechanical requirements are identical. |
| "ASTM A553 is less strict." | False. Both require the same impact testing at −196 °C and the same Q&T heat treatment. |
| "You must use SA553 for any pressure vessel." | Depends on jurisdiction. Many countries accept ASTM material certifications for non-code-stamped vessels. |
| "ASME material costs more." | Partially true. ASME traceability and documentation add cost, but the steel itself is the same. |
| Element | ASTM A553 Type 1 (Weight %) | ASME SA553 Type 1 (Weight %) |
|---|---|---|
| Carbon (C) | ≤ 0.13 | ≤ 0.13 |
| Manganese (Mn) | ≤ 0.90 | ≤ 0.90 |
| Phosphorus (P) | ≤ 0.035 | ≤ 0.035 |
| Sulfur (S) | ≤ 0.04 | ≤ 0.04 |
| Silicon (Si) | 0.15-0.30 | 0.15-0.30 |
| Nickel (Ni) | 8.50-9.50 | 8.50-9.50 |
| Iron (Fe) | Balance | Balance |
| Test | Requirement (Both Specs) |
|---|---|
| Tensile Strength, Ultimate | 690-825 MPa (100-120 ksi) |
| Tensile Strength, Yield (0.2% offset) | ≥ 585 MPa (84.8 ksi) |
| Elongation in 50 mm (2 in) | ≥ 20% |
| Charpy V-Notch (transverse, −196 °C) | ≥ 27 J |
| Lateral Expansion (−196 °C) | ≥ 0.381 mm |
Choose ASTM A553 Type 1 If:
Choose ASME SA553 Type 1 If:
Don't let a material certification mismatch delay your vessel fabrication schedule. Contact GNEE Steel today - we make ASTM A553 Type 1 & ASME SA553 Type 1 procurement simple, reliable, and cost-efficient.
Yes. The chemical composition, mechanical properties, heat treatment (quenched & tempered), and impact testing requirements are identical. The difference is the publishing body: ASTM vs. ASME.
ASTM A553 Type 1 covers 9% nickel alloy steel plates that are used in the fabrication of cryogenic pressure vessels. This material is capable of operating at temperatures as low as -196°C, and has high levels of strength and weldability.
Yes. ASME-certified plates typically carry a 5-15% premium over ASTM-only plates due to additional documentation, auditing, and traceability requirements - even though the steel is metallurgically identical. For budget-sensitive projects that do not require ASME stamping, ASTM A553 Type 1 is the cost-effective choice.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2008
Total Annual:
3000000-3500000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Gnee Steel Co.,Ltd (GNEE) is the affiliated company for ANGANG GROUP who are one large state-owned iron and steel group located in Henan, China. GNEE are specialized in manufacturing and supplying large quantities Seamless steel pipes and Shipping-building plates, We are provide high quality steel ... Gnee Steel Co.,Ltd (GNEE) is the affiliated company for ANGANG GROUP who are one large state-owned iron and steel group located in Henan, China. GNEE are specialized in manufacturing and supplying large quantities Seamless steel pipes and Shipping-building plates, We are provide high quality steel ...
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