What are the main applications of Grade 431 stainless steel?

It is used in construction parts requiring high strength, as well as in the food, soap, and acetic acid industries.

Does the product come with certifications?

Yes, the product is certified under ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, and JIS standards.

What surface finishes are available?

Available surface conditions include black, peeled, polished, machined, and sand blasted.

Bright Surface Stainless Steel Bar/Rod 17cr16ni2 SUS431

Name: Bright Surface Stainless Steel Bar/Rod 17cr16ni2 SUS431
Brand: HUNAN QILU INDUSTRIAL CO., LTD.
SKU: 1972763285

Hunan, ChinaHUNAN QILU INDUSTRIAL CO., LTD.

US$1,000.00-1,800.00

1 Ton

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Type

Stainless Steel Bars

Standard

ASTM, AISI, GB, JIS, DIN

Model NO.

431

Grade

400 Series

Certification

ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS

Technique

Hot Rolled

Surface Treatment

Polished

Heat Treatment

Annealed, Qt

Payment Term

30% Tt Deposit, Balance Against Bl Copy

Length

3000-5800mm

Ex-Stock

Delivery Date

30 Days

Ut Standard

Sep 1921-84 D/D

Grain Size

ASTM E112

Non-Metallic Inclusiton

ASTM E45

Transport Package

Seaworthy Package

Specification

Dia0.1-500

Trademark

Qilu

Origin

China

HS Code

722840

Production Capacity

500, 000tons/Year

Key features

Martensitic Stainless Steel: Grade 431 offers superior corrosion resistance and mechanical properties compared to straight chromium steel.

Wide Size Range: Available in round bars from 0.1mm to 500mm diameter and plates from 0.3mm to 200mm thickness.

Multiple Surface Options: Surface treatments include polished, peeled, machined, sand blasted, and black finish.

Comprehensive Heat Treatment: Options include annealed, solid solution, and QT (Quenched and Tempered) for varied mechanical properties.

Global Standard Compliance: Meets ASTM, AISI, GB, JIS, DIN, and ISO standards with RoHS and IBR certifications.

Fast Delivery: Standard delivery time is 30 days, with off-season lead time within 15 workdays.

Extensive Testing Capabilities: Includes tensile strength, yield strength, hardness, grain size, and ultrasonic testing.

Flexible Payment Terms: Accepts T/T, L/C, Western Union, and Money Gram for secure transactions.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFast DeliveryLow MOQ

HUNAN QILU INDUSTRIAL CO., LTD.

Hunan, China

Business Type: Manufacturer/FactoryExport Year: 2008-06-01Nearest Port: SHANGHAI, NINGBO, QINGDAOAverage Response Time: ≤2.55hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryThe supplier is identified as HUNAN QILU INDUSTRIAL CO., LTD., a China-based limited company with conflicting classifications as both a trading company and manufacturer/factory. It has broad steel-related business activities, extensive stated export markets, self-operated import/export rights, and eight years of export experience. Customization, ODM, and OEM capabilities are explicitly reported. However, service-management documentation is absent, including supplier approval, corrective-action, and complaint-handling procedures. No in-stock, overseas warehouse, showroom, agent, or branch capability is reported. Financial records are referenced for 2021–2023, but no substantive financial performance evidence is provided. Production volumes and staffing are stated, although the supplier’s trading-company classification creates uncertainty regarding direct manufacturing capacity. No certifications or customer cases are documented.

After-Sales capabilityThe supplier reports no written procedures or records for service-capability assessment, corrective and preventive actions, or customer-complaint handling. It also reports no in-stock service, overseas warehouse, showroom, agent, or branch capability, although lead times are stated as one month in both peak and off-season periods.

R&D capabilityThe supplier reports total R&D-engineer experience of 6–10 years and offers ODM services, indicating some design and development capability. However, it has no available SDK, and the slices do not provide concrete innovation outputs, patents, or product-development records.

Production capacityThe supplier states production categories covering cold-drawn material, steel round bar, steel plate, and steel pipe, with substantial annual output figures and 11–20 quality-control staff. However, its classification as both trading company and manufacturer/factory is inconsistent, so the extent of directly controlled production capacity requires verification.

Customization capabilityFlexible customization is explicitly reported, together with ODM service availability and OEM service for popular brands. These statements provide direct evidence of customization and outsourced-brand production capability.

Product Q&A

Q:What is the chemical composition of Grade 431 steel?

Grade 431 contains Carbon (0.12-0.20%), Silicon (1.0%), Manganese (1.0%), Phosphorus (0.040%), Sulfur (0.030%), Chromium (15-18%), and Nickel (1.25-3.0%).

Q:What are the available sizes for the stainless steel bars?

Round bars range from 0.1mm to 500mm in diameter, while plates and flats range from 0.3mm to 200mm in thickness and 1mm to 2500mm in width.

Q:What heat treatment options are available?

The steel can be supplied in annealed, solid solution, or QT (Quenched and Tempered) conditions depending on the required mechanical properties.

Q:What is the delivery time for this product?

The standard delivery time is 30 days. During off-peak seasons, the lead time is within 15 workdays.

Q:What payment terms do you accept?

We accept T/T (30% deposit, balance against copy), L/C, Western Union, Money Gram, and PayPal.